FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Davalos, AR Kawahara, M Malhotra, GK Schaum, N Huang, JH Ved, U Beausejour, CM Coppe, JP Rodier, F Campisi, J AF Davalos, Albert R. Kawahara, Misako Malhotra, Gautam K. Schaum, Nicholas Huang, Jiahao Ved, Urvi Beausejour, Christian M. Coppe, Jean-Philippe Rodier, Francis Campisi, Judith TI p53-dependent release of Alarmin HMGB1 is a central mediator of senescent phenotypes SO JOURNAL OF CELL BIOLOGY LA English DT Article ID MOBILITY GROUP BOX-1; INFLAMMATORY CYTOKINE SECRETION; GENETIC SUPPRESSOR ELEMENTS; CHROMATIN PROTEIN HMGB1; TUMOR-NECROSIS-FACTOR; DNA-DAMAGE RESPONSE; CELLULAR SENESCENCE; HETEROCHROMATIN FORMATION; MAMMALIAN-CELLS; IN-VIVO AB Cellular senescence irreversibly arrests proliferation in response to potentially oncogenic stress. Senescent cells also secrete inflammatory cytokines such as IL-6, which promote age-associated inflammation and pathology. HMGB1 (high mobility group box 1) modulates gene expression in the nucleus, but certain immune cells secrete HMGB1 as an extracellular Alarmin to signal tissue damage. We show that nuclear HMGB1 relocalized to the extracellular milieu in senescent human and mouse cells in culture and in vivo. In contrast to cytokine secretion, HMGB1 redistribution required the p53 tumor suppressor, but not its activator ATM. Moreover, altered HMGB1 expression induced a p53-dependent senescent growth arrest. Senescent fibroblasts secreted oxidized HMGB1, which stimulated cytokine secretion through TLR-4 signaling. HMGB1 depletion, HMGB1 blocking antibody, or TLR-4 inhibition attenuated senescence-associated IL-6 secretion, and exogenous HMGB1 stimulated NF-kappa B activity and restored IL-6 secretion to HMGB1-depleted cells. Our findings identify senescence as a novel biological setting in which HMGB1 functions and link HMGB1 redistribution to p53 activity and senescence-associated inflammation. C1 [Davalos, Albert R.; Kawahara, Misako; Malhotra, Gautam K.; Huang, Jiahao; Ved, Urvi; Coppe, Jean-Philippe; Rodier, Francis; Campisi, Judith] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. [Davalos, Albert R.; Schaum, Nicholas; Rodier, Francis; Campisi, Judith] Buck Inst Res Aging, Novato, CA 94945 USA. [Beausejour, Christian M.] CHU Ste Justine, Dept Pharmacol, Montreal, PQ H3T 1C5, Canada. RP Campisi, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. EM ADavalos@buckinstitute.org; JCampisi@lbl.gov FU National Institutes of Health [AG09909, AG017242]; California Breast Cancer Research Program [11IB-0153]; US Department of Energy [AC03-76SF00098]; SENS Foundation FX This work was supported by grants from the National Institutes of Health (AG09909, AG017242 to J. Campisi), California Breast Cancer Research Program (11IB-0153 to A.R. Davalos), and contract AC03-76SF00098 from the US Department of Energy and SENS Foundation (to N. Schaum). NR 82 TC 44 Z9 49 U1 0 U2 12 PU ROCKEFELLER UNIV PRESS PI NEW YORK PA 1114 FIRST AVE, 4TH FL, NEW YORK, NY 10021 USA SN 0021-9525 J9 J CELL BIOL JI J. Cell Biol. PD MAY 13 PY 2013 VL 201 IS 4 BP 613 EP 629 DI 10.1083/jcb.201206006 PG 17 WC Cell Biology SC Cell Biology GA 143ZV UT WOS:000318909500012 PM 23649808 ER PT J AU Jurgenson, ED Maris, P Furnstahl, RJ Navratil, P Ormand, WE Vary, JP AF Jurgenson, E. D. Maris, P. Furnstahl, R. J. Navratil, P. Ormand, W. E. Vary, J. P. TI Structure of p-shell nuclei using three-nucleon interactions evolved with the similarity renormalization group SO PHYSICAL REVIEW C LA English DT Article ID HAMILTONIANS; PHYSICS; MODEL AB The similarity renormalization group (SRG) is used to soften interactions for ab initio nuclear structure calculations by decoupling low- and high-energy Hamiltonian matrix elements. The substantial contribution of both initial and SRG-induced three-nucleon forces requires their consistent evolution in a three-particle basis space before applying them to larger nuclei. While, in principle, the evolved Hamiltonians are unitarily equivalent, in practice the need for basis truncation introduces deviations, which must be monitored. Here we present benchmark no-core full configuration calculations with SRG-evolved interactions in p-shell nuclei over a wide range of softening. These calculations are used to assess convergence properties, extrapolation techniques, and the dependence of energies, including four-body contributions, on the SRG resolution scale. C1 [Jurgenson, E. D.; Ormand, W. E.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Maris, P.; Vary, J. P.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Furnstahl, R. J.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Navratil, P.] TRIUMF, Vancouver, BC V6T 2A3, Canada. RP Jurgenson, ED (reprint author), Lawrence Livermore Natl Lab, POB 808,L-414, Livermore, CA 94551 USA. EM jurgenson2@llnl.gov; pmaris@iastate.edu; furnstahl.1@osu.edu; navratil@triumf.ca; ormand1@llnl.gov; jvary@iastate.edu OI Furnstahl, Richard/0000-0002-3483-333X FU National Science Foundation [PHY-1002478, PHY-0904782]; Department of Energy [DE-FG02-87ER40371, DE-FC02-07ER41457 (SciDAC-2/UNEDF), DE-FC02-09ER41582 (SciDAC-2/UNEDF), DESC0008485 (SciDAC-3/NUCLEI)]; LLNL [DE-AC52-07NA27344]; Natural Sciences and Engineering Research Council of Canada (NSERC) [401945-2011]; National Research Council Canada; DOE Office of Science [DE-AC05-00OR22725]; INCITE award, "Nuclear Structure and Nuclear Reactions," from the DOE Office of Advanced Scientific Computing FX This work was supported in part by the National Science Foundation under Grants No. PHY-1002478 and No. PHY-0904782 and the Department of Energy under Grants No. DE-FG02-87ER40371, No. DE-FC02-07ER41457 (SciDAC-2/UNEDF), No. DE-FC02-09ER41582 (SciDAC-2/UNEDF), and No. DESC0008485 (SciDAC-3/NUCLEI). Prepared in part by LLNL under Contract No. DE-AC52-07NA27344. Support from the Natural Sciences and Engineering Research Council of Canada (NSERC) Grant No. 401945-2011 is acknowledged. TRIUMF receives funding via a contribution through the National Research Council Canada. A portion of the computational resources was provided by the National Energy Research Scientific Computing Center (NERSC), which is supported by the DOE Office of Science, and by an INCITE award, "Nuclear Structure and Nuclear Reactions," from the DOE Office of Advanced Scientific Computing. This research also used resources of the Oak Ridge Leadership Computing Facility at ORNL, which is supported by the DOE Office of Science under Contract No. DE-AC05-00OR22725. NR 50 TC 37 Z9 37 U1 0 U2 14 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD MAY 13 PY 2013 VL 87 IS 5 AR 054312 DI 10.1103/PhysRevC.87.054312 PG 18 WC Physics, Nuclear SC Physics GA 145ZG UT WOS:000319058000005 ER PT J AU Steinheimer, J Randrup, J AF Steinheimer, Jan Randrup, Jorgen TI Spinodal density enhancements in simulations of relativistic nuclear collisions SO PHYSICAL REVIEW C LA English DT Article ID HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; PHASE-TRANSITION; MATTER; COLLABORATION; DECOMPOSITION; PERSPECTIVE AB We recently introduced a fluid-dynamical model for simulating relativistic nuclear collisions in the presence of a first-order phase transition and made explorative studies of head-on lead-lead collisions. We give here a more detailed account of this novel theoretical tool and carry out more exhaustive studies of the phase-separation dynamics. Extracting the density enhancement caused by the spinodal instabilities, the associated clump size distribution, and the resulting transverse flow velocity, we examine the sensitivity of these quantities to the strength of the gradient term that promotes the phase separation, to the details of the initial density fluctuations that form the seeds for the subsequent amplification, and to the equation of state. C1 [Steinheimer, Jan; Randrup, Jorgen] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Steinheimer, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. EM jsfroschauer@lbl.gov FU Office of Nuclear Physics in the US Department of Energy's Office of Science [DE-AC02-05CH11231]; Feodor Lynen program of the Alexander von Humboldt Foundation FX We wish to acknowledge stimulating discussion with Volker Koch. This work was supported by the Office of Nuclear Physics in the US Department of Energy's Office of Science under Contract No. DE-AC02-05CH11231. J.S. was supported in part by the Feodor Lynen program of the Alexander von Humboldt Foundation. NR 51 TC 13 Z9 13 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD MAY 13 PY 2013 VL 87 IS 5 AR 054903 DI 10.1103/PhysRevC.87.054903 PG 10 WC Physics, Nuclear SC Physics GA 145ZG UT WOS:000319058000008 ER PT J AU Kullberg, A del-Castillo-Negrete, D Morales, GJ Maggs, JE AF Kullberg, A. del-Castillo-Negrete, D. Morales, G. J. Maggs, J. E. TI Isotropic model of fractional transport in two-dimensional bounded domains SO PHYSICAL REVIEW E LA English DT Article ID ADVECTION-DISPERSION EQUATIONS; ANOMALOUS DIFFUSION; PLASMA TURBULENCE; TOKAMAK; FLUCTUATIONS AB A two-dimensional fractional Laplacian operator is derived and used to model nonlocal, nondiffusive transport. This integro-differential operator appears in the long-wavelength, fluid description of quantities undergoing non-Brownian random walks without characteristic length scale. To study bounded domains, a mask function is introduced that modifies the kernel in the fractional Laplacian and removes singularities at the boundary. Green's function solutions to the fractional diffusion equation are presented for the unbounded domain and compared to the one-dimensional Cartesian approximations. A time-implicit numerical integration scheme is presented to study fractional diffusion in a circular disk with azimuthal symmetry. Numerical studies of steady-state reveal temperature profiles in which the heat flux and temperature gradient are in the same direction, i.e., uphill transport. The response to off-axis heating, scaling of confinement time with system size, and propagation of cold pulses are investigated. C1 [Kullberg, A.; Morales, G. J.; Maggs, J. E.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [del-Castillo-Negrete, D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Kullberg, A (reprint author), Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. OI del-Castillo-Negrete, Diego/0000-0001-7183-801X FU DOE at UCLA [SC0004663]; Oak Ridge National Laboratory; US Department of Energy [DE-AC05-00OR22725] FX The work of A.K., G.J.M., and J.E.M. is sponsored by DOE grant SC0004663 at UCLA. The work of D.d.-C.N. is sponsored by the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the US Department of Energy under contract DE-AC05-00OR22725. NR 27 TC 4 Z9 4 U1 2 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0045 EI 2470-0053 J9 PHYS REV E JI Phys. Rev. E PD MAY 13 PY 2013 VL 87 IS 5 AR 052115 DI 10.1103/PhysRevE.87.052115 PG 16 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 146AK UT WOS:000319061000002 PM 23767495 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Aguilo, E Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hormann, N Hrubec, J Jeitler, M Kiesenhofer, W Knunz, V Krammer, M Kratschmer, I Liko, D Mikulec, I Pernicka, M Rahbaran, B Rohringer, C Rohringer, H Schoefbeck, R Strauss, J Taurok, A Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Bansal, M Bansal, S Cornelis, T De Wolf, EA Gartner, J Janssen, X Luyckx, S Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Staykova, Z Van Haevermaet, H Van Mechelen, P Van Remortel, N Van Spilbeeck, A Blekman, F Blyweert, S D'Hondt, J Suarez, RG Kalogeropoulos, A Maes, M Olbrechts, A Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hreus, T Leonard, A Marage, PE Mohammadi, A Reis, T Thomas, L Vander Marcken, G Vander Velde, C Vanlaer, R Wang, J Adler, V Beernaert, K Cimmino, A Costantini, S Garcia, G Grunewald, M Klein, B Lellouch, J Marinov, A Mccartin, J Rios, AAO Ryckbosch, D Strobbe, N Thyssen, F Tytgat, M Verwilligen, R Walsh, S Yazgan, E Zaganidis, N Basegmez, S Bruno, G Castello, R Ceard, L Delaere, C du Pree, T Favart, D Forthomme, L Giammanco, A Hollar, J Lemaitre, V Liao, J Militaru, O Nuttens, C Pagano, D Pin, A Piotrzkowski, K Schul, N Garcia, JMV Beliy, N Caebergs, T Daubie, E Hammad, GH Alves, GA Martins, MCM Damiao, DD Martins, T Pol, ME Souza, MHG Alda, WL Carvalho, W Custodio, A Da Costa, EM Martins, CD De Souza, SF Figueiredo, DM Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Jorge, LS Sznajder, A Anjos, TS Bernardes, CA Dias, FA Tomei, TRFP Gregores, EM Lagana, C Marinho, F Mercadante, PG Novaes, SF Padula, SS Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Vutova, M Dimitrov, A Hadjiiska, R Kozhuharov, V Litov, L Pavlov, B Petkov, P Bian, JG Chen, GM Chen, HS Jiang, CH Liang, D Liang, S Meng, X Tao, J Wang, J Wang, X Wang, Z Xiao, H Xu, M Zang, J Zhang, Z Asawatangtrakuldee, C Ban, Y Guo, Y Li, W Liu, S Mao, Y Qian, SJ Teng, H Wang, D Zhang, L Zou, W Avila, C Gomez, JP Moreno, BG Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Plestina, R Polic, D Puljak, I Antunovic, Z Kovac, M Brigljevic, V Duric, S Kadija, K Luetic, J Morovic, S Attikis, A Galanti, M Mavromanolakis, G Mousa, J Nicolaou, C Ptochos, F Razis, PA Finger, M Finger, M Assran, Y Elgammal, S Kamel, AE Mahmoud, MA Radi, A Kadastik, M Muntel, M Raidal, M Rebane, L Tiko, A Eerola, P Fedi, G Voutilainen, M Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Peltola, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Karjalainen, A Korpela, A Tuuva, T Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Malcles, J Millischer, L Nayak, A Rander, J Rosowsky, A Shreyber, I Titov, M Baffioni, S Beaudette, F Benhabib, L Bianchini, L Bluj, M Broutin, C Busson, P Chariot, C Daci, N Dahms, T Dobrzynski, L de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Naranjo, IN Nguyen, M Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Veelken, C Zabi, A Agram, JL Andrea, J Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Juillot, P Le Bihan, AC Van Hove, P Fassi, F Mercier, D Beauceron, S Beaupere, N Bondu, O Boudoul, G Chasserat, J Chierici, R Contardo, D Depasse, P El Mamouni, H Fay, J Gascon, S Gouzevitch, M Ille, B Kurca, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tschudi, Y Verdier, P Viret, S Roinishvili, V Anagnostou, G Autermann, C Beranek, S Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Wittmer, B Zhukov, V Ata, M Caudron, J Dietz-Laursonn, E Duchardt, D Erdmann, M Fischer, R Guth, A Hebbeker, T Heidemann, C Hoepfner, K Klingebiel, D Kreuzer, P Magass, C Merschmeyer, M Meyer, A Olschewski, M Papacz, P Pieta, H Reithler, H Schmitz, SA Sonnenschein, L Steggemann, J Teyssier, D Weber, M Bontenackels, M Cherepanov, V Erdogan, Y Flugge, G Geenen, H Geisler, M Ahmad, WH Hoehle, F Kargoll, B Kress, T Kuessel, Y Nowack, A Perchalla, L Pooth, O Sauerland, P Stahl, A Martin, MA Behr, J Behrenhoff, W Behrens, U Bergholz, M Bethani, A Borras, K Burgmeier, A Cakir, A Calligaris, L Campbell, A Castro, E Costanza, F Dammann, D Pardos, CD Eckerlin, G Eckstein, D Flucke, G Geiser, A Glushkov, I Gunnellini, P Habib, S Hauk, J Hellwig, G Jung, H Kasemann, M Katsas, P Kleinwort, C Kluge, H Knutsson, A Kramer, M Krucker, D Kuznetsova, E Lange, W Lohmann, W Lutz, B Mankel, R Marfin, I Marienfeld, M Melzer-Pellmann, IA Meyer, AB Mnich, J Mussgiller, A Naumann-Emme, S Olzem, J Perrey, H Petrukhin, A Pitzl, D Raspereza, A Cipriano, PMR Riedl, C Ron, E Rosin, M Salfeld-Nebgen, J Schmidt, R Schoerner-Sadenius, T Sen, N Spiridonov, A Stein, M Walsh, R Wissing, C Blobel, V Draeger, J Enderle, H Erfle, J Gebbert, U Gorner, M Hermanns, T Hoing, RS Kaschube, K Kaussen, G Kirschenmann, H Klanner, R Lange, J Mura, B Nowak, F Peiffer, T Pietsch, N Rathjens, D Sander, C Schettler, H Schleper, P Schlieckau, E Schmidt, A Schroder, M Schum, T Seidel, M Sola, V Stadie, H Steinbruck, G Thomsen, J Vanelderen, L Barth, C Berger, J Boser, C Chwalek, T De Boer, W Descroix, A Dierlamm, A Feindt, M Guthoff, M Hackstein, C Hartmann, F Hauth, T Heinrich, M Held, H Hoffmann, KH Honc, S Katkov, I Komaragiri, JR Pardo, PL Martschei, D Mueller, S Muller, T Niegel, M Nurnberg, A Oberst, O Oehler, A Ott, J Quast, G Rabbertz, K Ratnikov, F Ratnikova, N Rocker, S Scheurer, A Schilling, FP Schott, G Simonis, HJ Stober, FM Troendle, D Ulrich, R Wagner-Kuhr, J Wayand, S Weiler, T Zeise, M Daskalakis, G Geralis, T Kesisoglou, S Kyriakis, A Loukas, D Manolakos, I Markou, A Markou, C Mavrommatis, C Ntomari, E Gouskos, L Mertzimekis, TJ Panagiotou, A Saoulidou, N Evangelou, I Foudas, C Kokkas, P Manthos, N Papadopoulos, I Patras, V Bencze, G Hajdu, C Hidas, P Horvath, D Sikler, F Veszpremi, V Vesztergombi, G Zsigmond, AJ Beni, N Czellar, S Molnar, J Palinkas, J Szillasi, Z Karancsi, J Raics, P Trocsanyi, ZL Ujvari, B Beri, SB Bhatnagar, V Dhingra, N Gupta, R Kaur, M Mehta, MZ Nishu, N Saini, LK Sharma, A Singh, JB Kumar, A Kumar, A Ahuja, S Bhardwaj, A Choudhary, BC Malhotra, S Naimuddin, M Ranjan, K Sharma, V Shivpuri, RK Banerjee, S Bhattacharya, S Dutta, S Gomber, B Jain, S Jain, S Khurana, R Sarkar, S Sharan, M Abdulsalam, A Choudhury, RK Dutta, D Kailas, S Kumar, V Mehta, P Mohanty, AK Pant, LM Shukla, P Aziz, T Ganguly, S Guchait, M Maity, M Majumder, G Mazumdar, K Mohanty, GB Parida, B Sudhakar, K Wickramage, N Banerjee, S Dugad, S Arfaei, H Bakhshiansohi, H Etesami, SM Fahim, A Hashemi, M Hesari, H Jafari, A Khakzad, M Najafabadi, MM Mehdiabadi, SP Safarzadeh, B Zeinali, M Abbrescia, M Barbone, L Calabria, C Chhibra, SS Colaleo, A Creanza, D De Filippis, N De Palma, M Fiore, L Iaselli, G Lusito, L Maggi, G Maggi, M Marangelli, B My, S Nuzzo, S Pacifico, N Pompili, A Pugliese, G Selvaggi, G Silvestris, L Singh, G Venditti, R Zito, G Abbiendi, G Benvenuti, AC Bonacorsi, D Braibant-Giacomelli, S Brigliadori, L Capiluppi, P Castro, A Cavallo, FR Cuffiani, M Dallavalle, GM Fabbri, F Fanfani, A Fasanella, D Giacomelli, P Grandi, C Guiducci, L Marcellini, S Masetti, G Meneghelli, M Montanari, A Navarria, FL Odorici, F Perrotta, A Primavera, F Rossi, AM Rovelli, T Siroli, GP Travaglini, R Albergo, S Cappello, G Chiorboli, M Costa, S Potenza, R Tricomi, A Tuve, C Barbagli, G Ciulli, V Civinini, C D'Alessandro, R Focardi, E Frosali, S Gallo, E Gonzi, S Meschini, M Paoletti, S Sguazzoni, G Tropiano, A Benussi, L Bianco, S Colafranceschi, S Fabbri, F Piccolo, D Fabbricatore, P Musenich, R Tosi, S Benaglia, A De Guio, F Di Matteo, L Fiorendi, S Gennai, S Ghezzi, A Malvezzi, S Manzoni, RA Martelli, A Massironi, A Menasce, D Moroni, L Paganoni, M Pedrini, D Ragazzi, S Redaelli, N Sala, S de Fatis, TT Buontempo, S Montoya, CAC Cavallo, N De Cosa, A Dogangun, O Fabozzi, F Iorio, AOM Lista, L Meola, S Merola, M Paolucci, P Azzi, P Bacchetta, N Bisello, D Branca, A Carlin, R Checchia, P Dorigo, T Dosselli, U Gasparini, F Gasparini, U Gozzelino, A Kanishchev, K Lacaprara, S Lazzizzera, I Margoni, M Meneguzzo, AT Pazzini, J Pozzobon, N Ronchese, P Simonetto, F Torassa, E Tosi, M Vanini, S Zotto, P Zumerle, G Gabusi, M Ratti, SP Riccardi, C Torre, P Vitulo, P Biasini, M Bilei, GM Fano, L Lariccia, P Lucaroni, A Mantovani, G Menichelli, M Nappi, A Romeo, F Saha, A Santocchia, A Spiezia, A Taroni, S Azzurri, P 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CA CMS Collaboration TI Measurement of the inelastic proton-proton cross section at root s=7 TeV SO PHYSICS LETTERS B LA English DT Article DE CMS; Physics; Inelastic cross section; Tracking efficiency; Forward energy; Total cross section; LHC ID ENERGY; COLLISIONS AB A measurement is presented of the inelastic proton-proton cross section at a centre-of-mass energy of root s = 7 TeV. Using the CMS detector at the LHC, the inelastic cross section is measured through two independent methods based on information from (i) forward calorimetry (for pseudorapidity 3 200 MeV/c. The measurements cover a large fraction of the inelastic cross section for particle production over about nine units of pseudorapidity and down to small transverse momenta. The results are compared with those of other experiments, and with models used to describe high-energy hadronic interactions. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved. C1 [Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. 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[Attikis, A.; Galanti, M.; Mavromanolakis, G.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.] Univ Cyprus, Nicosia, Cyprus. [Finger, M.; Finger, M., Jr.] Charles Univ Prague, Prague, Czech Republic. [Assran, Y.; Elgammal, S.; Kamel, A. Ellithi; Mahmoud, M. A.; Radi, A.] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt. [Kadastik, M.; Muentel, M.; Raidal, M.; Rebane, L.; Tiko, A.] NICPB, Tallinn, Estonia. [Eerola, P.; Fedi, G.; Voutilainen, M.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Harkonen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Peltola, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Banzuzi, K.; Karjalainen, A.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Besancon, M.; Choudhury, S.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Millischer, L.; Nayak, A.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Baffioni, S.; Beaudette, F.; Benhabib, L.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Chariot, C.; Daci, N.; Dahms, T.; Dobrzynski, L.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Naranjo, I. N.; Nguyen, M.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Veelken, C.; Zabi, A.] Ecole Polytech, CNRS IN2P3, Lab Leprince Ringuet, Palaiseau, France. [Agram, J. -L.; Andrea, J.; Bloch, D.; Bodin, D.; Brom, J. -M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Juillot, P.; Le Bihan, A. -C.; Van Hove, P.] Univ Haute Alsace Mulhouse, Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, CNRS IN2P3, Strasbourg, France. [Fassi, F.; Mercier, D.] CNRS IN2P3, Ctr Calcul, Inst Natl Phys Nucl & Phys Particules, Villeurbanne, France. [Beauceron, S.; Beaupere, N.; Bondu, O.; Boudoul, G.; Chasserat, J.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Fay, J.; Gascon, S.; Gouzevitch, M.; Ille, B.; Kurca, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tschudi, Y.; Verdier, P.; Viret, S.] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France. [Roinishvili, V.] Georgian Acad Sci, E Andronikashvili Inst Phys, GE-380060 Tbilisi, Rep of Georgia. [Anagnostou, G.; Autermann, C.; Beranek, S.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Wittmer, B.; Zhukov, V.] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany. [Ata, M.; Caudron, J.; Dietz-Laursonn, E.; Duchardt, D.; Erdmann, M.; Fischer, R.; Gueth, A.; Hebbeker, T.; Heidemann, C.; Hoepfner, K.; Klingebiel, D.; Kreuzer, P.; Magass, C.; Merschmeyer, M.; Meyer, A.; Olschewski, M.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.; Weber, M.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bontenackels, M.; Cherepanov, V.; Erdogan, Y.; Fluegge, G.; Geenen, H.; Geisler, M.; Ahmad, W. Haj; Hoehle, F.; Kargoll, B.; Kress, T.; Kuessel, Y.; Nowack, A.; Perchalla, L.; Pooth, O.; Sauerland, P.; Stahl, A.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Martin, M. Aldaya; Behr, J.; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Bethani, A.; Borras, K.; Burgmeier, A.; Cakir, A.; Calligaris, L.; Campbell, A.; Castro, E.; Costanza, F.; Dammann, D.; Pardos, C. Diez; Eckerlin, G.; Eckstein, D.; Flucke, G.; Geiser, A.; Glushkov, I.; Gunnellini, P.; Habib, S.; Hauk, J.; Hellwig, G.; Jung, H.; Kasemann, M.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kraemer, M.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Lutz, B.; Mankel, R.; Marfin, I.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Naumann-Emme, S.; Olzem, J.; Perrey, H.; Petrukhin, A.; Pitzl, D.; Raspereza, A.; Cipriano, P. M. Ribeiro; Riedl, C.; Ron, E.; Rosin, M.; Salfeld-Nebgen, J.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Blobel, V.; Draeger, J.; Enderle, H.; Erfle, J.; Gebbert, U.; Goerner, M.; Hermanns, T.; Hoeing, R. S.; Kaschube, K.; Kaussen, G.; Kirschenmann, H.; Klanner, R.; Lange, J.; Mura, B.; Nowak, F.; Peiffer, T.; Pietsch, N.; Rathjens, D.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schmidt, A.; Schroeder, M.; Schum, T.; Seidel, M.; Sola, V.; Stadie, H.; Steinbrueck, G.; Thomsen, J.; Vanelderen, L.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Berger, J.; Boeser, C.; Chwalek, T.; De Boer, W.; Descroix, A.; Dierlamm, A.; Feindt, M.; Guthoff, M.; Hackstein, C.; Hartmann, F.; Hauth, T.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Katkov, I.; Komaragiri, J. R.; Pardo, P. Lobelle; Martschei, D.; Mueller, S.; Mueller, Th; Niegel, M.; Nuernberg, A.; Oberst, O.; Oehler, A.; Ott, J.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Roecker, S.; Scheurer, A.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Ulrich, R.; Wagner-Kuhr, J.; Wayand, S.; Weiler, T.; Zeise, M.] Univ Karlsruhe, Inst Expt Kernphys, Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Saoulidou, N.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.] Univ Ioannina, GR-45110 Ioannina, Greece. [Bencze, G.; Hajdu, C.; Hidas, P.; Horvath, D.; Sikler, F.; Veszpremi, V.; Vesztergombi, G.; Zsigmond, A. J.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Beni, N.; Czellar, S.; Molnar, J.; Palinkas, J.; Szillasi, Z.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Karancsi, J.; Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, H-4012 Debrecen, Hungary. [Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Kaur, M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, J. B.] Panjab Univ, Chandigarh 160014, India. [Kumar, Ashok; Kumar, Arun; Ahuja, S.; Bhardwaj, A.; Choudhary, B. C.; Malhotra, S.; Naimuddin, M.; Ranjan, K.; Sharma, V.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Banerjee, S.; Bhattacharya, S.; Dutta, S.; Gomber, B.; Jain, Sa; Jain, Sh; Khurana, R.; Sarkar, S.; Sharan, M.] Saha Inst Nucl Phys, Kolkata, India. [Abdulsalam, A.; Choudhury, R. K.; Dutta, D.; Kailas, S.; Kumar, V.; Mehta, P.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India. [Aziz, T.; Ganguly, S.; Guchait, M.; Maity, M.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Parida, B.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Bombay, Maharashtra, India. [Banerjee, S.; Dugad, S.] Tata Inst Fundamental Res HECR, Bombay, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Hesari, H.; Jafari, A.; Khakzad, M.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res Fundamental Sci IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Chhibra, S. S.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Pugliese, G.; Selvaggi, G.; Silvestris, L.; Singh, G.; Venditti, R.; Zito, G.] INFN Sez Bari, Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; Chhibra, S. S.; De Palma, M.; Lusito, L.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Selvaggi, G.; Singh, G.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Grandi, C.; Guiducci, L.; Marcellini, S.; Masetti, G.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G. P.; Travaglini, R.] INFN Sez Bologna, Bologna, Italy. [Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Fasanella, D.; Guiducci, L.; Meneghelli, M.; Navarria, F. L.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G. P.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] INFN Sez Catania, Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] INFN Sez Firenze, Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] INFN Lab Nazl Frascati, Frascati, Italy. [Fabbricatore, P.; Musenich, R.; Tosi, S.] INFN Sez Genova, Genoa, Italy. [Tosi, S.] Univ Genoa, Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Fiorendi, S.; Gennai, S.; Ghezzi, A.; Malvezzi, S.; Manzoni, R. A.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli] INFN Sez Milano Bicocca, Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Fiorendi, S.; Ghezzi, A.; Manzoni, R. A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cavallo, N.; De Cosa, A.; Dogangun, O.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Meola, S.; Merola, M.; Paolucci, P.] INFN Sez Napoli, Naples, Italy. [De Cosa, A.; Dogangun, O.; Merola, M.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Dorigo, T.; Dosselli, U.; Gasparini, F.; Gasparini, U.; Gozzelino, A.; Kanishchev, K.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Meneguzzo, A. T.; Pazzini, J.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] INFN Sez Padova, Padua, Italy. [Bisello, D.; Branca, A.; Carlin, R.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pazzini, J.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Kanishchev, K.; Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Gabusi, M.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.] INFN Sez Pavia, Pavia, Italy. [Gabusi, M.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Saha, A.; Santocchia, A.; Spiezia, A.; Taroni, S.] INFN Sez Perugia, Perugia, Italy. [Biasini, M.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Spiezia, A.; Taroni, S.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Rizzi, A.; Serban, A. T.; Spagnolo, P.; Squillacioti, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] INFN Sez Pisa, Pisa, Italy. [Fiori, F.; Messineo, A.; Rizzi, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Diemoz, M.; Fanelli, C.; Grassi, M.; Longo, E.; Meridiani, P.; Micheli, F.; Nourbakhsh, S.; Organtini, G.; Paramatti, R.; Rahatlou, S.; Sigamani, M.; Soffi, L.] INFN Sez Roma, Rome, Italy. [Barone, L.; Del Re, D.; Fanelli, C.; Grassi, M.; Longo, E.; Micheli, F.; Nourbakhsh, S.; Organtini, G.; Rahatlou, S.; Soffi, L.] Univ Rome, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Cartiglia, N.; Costa, M.; Demaria, N.; Mariotti, C.; Maselli, S.; Migliore, E.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Solano, A.; Staiano, A.; Pereira, A. Vilela] INFN Sez Torino, Turin, Italy. [Amapane, N.; Argiro, S.; Costa, M.; Migliore, E.; Monaco, V.; Potenza, A.; Romero, A.; Sacchi, R.; Solano, A.] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Candelise, V.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Marone, M.; Montanino, D.; Penzo, A.; Schizzi, A.] INFN Sez Trieste, Trieste, Italy. [Candelise, V.; Della Ricca, G.; Marone, M.; Montanino, D.; Schizzi, A.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Kim, T. Y.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Kim, D. H.; Kim, G. N.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, J. Y.; Kim, Zero J.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Gyun, D.; Hong, B.; Jo, M.; Kim, H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.] Korea Univ, Seoul, South Korea. [Choi, M.; Kim, J. H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Cho, Y.; Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Kwon, E.; Lee, B.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Juodagalvis, A.] Vilnius State Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Martinez-Ortega, J.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] Ctr Invest & Estudios Avanzados IPN, Mexico City, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand. [Bell, A. J.; Butler, P. H.; Doesburg, R.; Reucroft, S.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ansari, M. H.; Asghar, M. I.; Hoorani, H. R.; Khalid, S.; Khan, W. A.; Khurshid, T.; Qazi, S.; Shah, M. A.; Shoaib, M.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Bialkowska, H.; Boimska, B.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, R.] Natl Ctr Nucl Res, Otwock, Poland. [Brona, G.; Bunkowski, K.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Almeida, N.; Bargassa, R.; David, A.; Faccioli, R.; Ferreira Parracho, P. G.; Gallinaro, M.; Seixas, J.; Varela, J.; Vischia, R.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Belotelov, I.; Bunin, P.; Gavrilenko, M.; Golutvin, I.; Gorbunov, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Laney, A.; Malakhov, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Evstyukhin, S.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, R.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Tlisov, D.; Toropin, A.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia. [Epshteyn, V.; Erofeeva, M.; Gavrilov, V.; Kossov, M.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Belyaev, A.; Boos, E.; Dubinin, M.; Dudko, L.; Khein, L.; Klyukhin, V.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Popov, A.; Proskuryakov, A.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Mesyats, G.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Ekmedzic, M.; Krpic, D.; Milosevic, J.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Ekmedzic, M.; Krpic, D.; Milosevic, J.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Quintario Olmeda, A.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Brun, H.; Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Piedra Gomez, J.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Graziano, A.; Jorda, C.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Vila, I.; Vilar Cortabitarte, R.] CSIC Univ Cantabria, Inst Fis Cantabria IFCA, Santander, Spain. [Abbaneo, D.; Auffray, E.; Auzinger, G.; Bachtis, M.; Baillon, P.; Ball, A. H.; Barney, D.; Benitez, J. F.; Bernet, C.; Bianchi, G.; Bloch, P.; Bocci, A.; Bonato, A.; Botta, C.; Breuker, H.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; D'Enterria, D.; Dabrowski, A.; De Roeck, A.; Di Guida, S.; Dobson, M.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Georgiou, G.; Giffels, M.; Gigi, D.; Gill, K.; Giordano, D.; Giunta, M.; Glege, F.; Garrido, R. Gomez-Reino; Govoni, P.; Gowdy, S.; Guida, R.; Hansen, M.; Harris, P.; Hartl, C.; Harvey, J.; Hegner, B.; Hinzmann, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Kousouris, K.; Lecoq, P.; Lee, Y. -J.; Lenzi, P.; Lourenco, C.; Magini, N.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Musella, P.; Nesvold, E.; Orimoto, T.; Orsini, L.; Cortezon, E. Palencia; Perez, E.; Perrozzi, L.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Quertenmont, L.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Rolandi, G.; Rovelli, C.; Rovere, M.; Sakulin, H.; Santanastasio, F.; Schaefer, C.; Schwick, C.; Segoni, I.; Sekmen, S.; Sharma, A.; Siegrist, P.; Silva, P.; Simon, M.; Sphicas, P.; Spiga, D.; Tsirou, A.; Veres, G. I.; Vlimant, J. R.; Woehri, H. K.; Worm, S. D.; Zeuner, W. D.; Adair, A.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.] Paul Scherrer Inst, Villigen, Switzerland. [Baeni, L.; Bortignon, P.; Buchmann, M. A.; Casal, B.; Chanon, N.; Deisher, A.; Dissertori, G.; Dittmar, M.; Donega, M.; Duenser, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hits, D.; Lecomte, P.; Lustermann, W.; Marini, A. C.; del Arbol, P. Martinez Ruiz; Mohr, N.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pandolfi, F.; Pape, L.; Pauss, F.; Peruzzi, M.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Starodumov, A.; Stieger, B.; Takahashi, M.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, H. A.; Wehrli, L.] ETH, Inst Particle Phys, Zurich, Switzerland. [Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Robmann, P.; Snoek, H.; Tupputi, S.; Verzetti, M.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Singh, A. P.; Volpe, R.; Yu, S. S.] Natl Cent Univ, Chungli, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Dietz, C.; Grundler, U.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Majumder, D.; Petrakou, E.; Shi, X.; Shiu, J. G.; Tzeng, Y. M.; Wan, X.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Karapinar, G.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yalvac, M.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Cankocak, K.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine. [Bostock, F.; Brooke, J. J.; Clement, E.; Cussans, D.; Flacher, H.; Frazier, R.; Goldstein, J.; Grimes, M.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Williams, T.] Univ Bristol, Bristol, Avon, England. [Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Dauncey, P.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pela, J.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Stoye, M.; Tapper, A.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leggat, D.; Leslie, D.; Martin, W.; Reid, I. D.; Symonds, P.; Teodorescu, L.; Turner, M.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.; Liu, H.; Scarborough, T.] Baylor Univ, Waco, TX 76798 USA. [Charaf, O.; Henderson, C.; Rumerio, P.] Univ Alabama, Tuscaloosa, AL USA. [Avetisyan, A.; Bose, T.; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Alimena, J.; Bhattacharya, S.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Laird, E.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Conway, R.; Cox, P. T.; Dolen, J.; Erbacher, R.; Gardner, M.; Houtz, R.; Ko, W.; Kopecky, A.; Lander, R.; Miceli, T.; Pellett, D.; Ricci-Tam, F.; Rutherford, B.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez] Univ Calif Davis, Davis, CA 95616 USA. [Andreev, V.; Cline, D.; Cousins, R.; Duris, J.; Erhan, S.; Everaerts, P.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Traczyk, P.; Valuev, V.; Weber, M.] Univ Calif Los Angeles, Los Angeles, CA USA. [Babb, J.; Clare, R.; Dinardo, M. E.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Paramesvaran, S.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Cittolin, S.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Macneill, I.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pieri, M.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; West, C.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Apresyan, A.; Bornheim, A.; Chen, Y.; Di Marco, E.; Duarte, J.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Spiropulu, M.; Timciuc, V.; Veverka, J.; Wilkinson, R.; Xie, S.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Azzolini, V.; Calamba, A.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Liu, Y. F.; Paulini, M.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA. [Alexander, J.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Khukhunaishvili, A.; Kreis, B.; Mirman, N.; Kaufman, G. Nicolas; Patterson, J. R.; Ryd, A.; Salvati, E.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Tucker, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Elvira, V. D.; Fisk, I.; Freeman, J.; Gao, Y.; Green, D.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jindariani, S.; Johnson, M.; Joshi, U.; Kilminster, B.; Klima, B.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Linacre, J.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Maruyama, S.; Mason, D.; McBride, P.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Prokofyev, O.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Tran, N. V.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Cheng, T.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Low, J. F.; Matchev, K.; Milenovic, P.; Mitselmakher, G.; Muniz, L.; Remington, R.; Rinkevicius, A.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Gaultney, V.; Hewamanage, S.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Veeraraghavan, V.; Weinberg, M.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Hohlmann, M.; Kalakhety, H.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Bucinskaite, I.; Callner, J.; Cavanaugh, R.; Evdokimov, O.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Strom, D.; Turner, P.; Varelas, N.] Univ Illinois, Chicago, IL USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Griffiths, S.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Onel, Y.; Ozok, F.; Sen, S.; Tiras, E.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bolognesi, S.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Baringer, P.; Bean, A.; Benelli, G.; Kenny, R. P., III; Murray, M.; Noonan, D.; Sanders, S.; Stringer, R.; Tinti, G.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Calvert, B.; Eno, S. C.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kim, M.; Kolberg, T.; Lu, Y.; Marionneau, M.; Mignerey, A. C.; Pedro, K.; Peterman, A.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Apyan, A.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Kim, Y.; Klute, M.; Krajczar, K.; Li, W.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Wyslouch, B.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Dahmes, B.; De Benedetti, A.; Franzoni, G.; Gude, A.; Kao, S. C.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.; Turkewitz, J.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.] Univ Mississippi, Oxford, MS USA. [Avdeeva, E.; Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Chasco, M.; Haley, J.; Nash, D.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Mucia, N.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Brinkerhoff, A.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Planer, M.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Wolf, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Hill, C.; Hughes, R.; Kotov, K.; Ling, T. Y.; Puigh, D.; Rodenburg, M.; Vuosalo, C.; Williams, G.; Winer, B. L.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hegeman, J.; Hunt, A.; Jindal, P.; Pegna, D. Lopes; Lujan, P.; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Raval, A.; Safdi, B.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Brownson, E.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Benedetti, D.; Bolla, G.; Bortoletto, D.; De Mattia, M.; Everett, A.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Marono, M. Vidal; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Guragain, S.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA. [Adair, A.; Boulahouache, C.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Ferbel, T.; Garcia-Bellido, A.; Goldenzweig, P.; Han, J.; Harel, A.; Miner, D. C.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Malik, S.; Mesropian, C.] Rockefeller Univ, New York, NY USA. [Arora, S.; Barker, A.; Chou, J. P.; Contreras-Campana, C.; Contreras-Campana, E.; Duggan, D.; Ferencek, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Lath, A.; Panwalkar, S.; Park, M.; Patel, R.; Rekovic, V.; Robles, J.; Rose, K.; Salur, S.; Schnetzer, S.; Seitz, C.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA. [Eusebi, R.; Flanagan, W.; Gilmore, J.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Osipenkov, I.; Pakhotin, Y.; Perloff, A.; Roe, J.; Safonov, A.; Sakuma, T.; Sengupta, S.; Suarez, I.; Tatarinov, A.; Toback, D.] Texas A&M Univ, College Stn, TX USA. [Akchurin, N.; Damgov, J.; Dragoiu, C.; Dudero, P. R.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Libeiro, T.; Roh, Y.; Volobouev, I.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Delannoy, A. G.; Florez, C.; Greene, S.; Gurrola, A.; Johns, W.; Johnston, C.; Kurt, P.; Maguire, C.; Melo, A.; Sharma, M.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA. [Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Goodell, J.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Wood, J.; Yohay, R.] Univ Virginia, Charlottesville, VA USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Don, C. Kottachchi Kankanamge; Lamichhane, P.; Sakharov, A.] Wayne State Univ, Detroit, MI USA. [Anderson, M.; Belknap, D.; Borrello, L.; Carlsmith, D.; Cepeda, M.; Dasu, S.; Friis, E.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Herve, A.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Ojalvo, I.; Palmonari, F.; Pierro, G. A.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.] Univ Wisconsin, Madison, WI 53706 USA. [Fabjan, C.; Fruehwirth, R.; Jeitler, M.; Krammer, M.; Wulz, C. -E.] Vienna Univ Technol, A-1040 Vienna, Austria. [Giammanco, A.] NICPB, Tallinn, Estonia. [Anjos, T. S.; Bernardes, C. A.; Gregores, E. M.; Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil. [Dias, F. A.; Dubinin, M.] CALTECH, Pasadena, CA 91125 USA. [Genchev, V.; Iaydjiev, P.; Puljak, I.; Chierici, R.; Guthoff, M.; Hauth, T.; Mohanty, A. 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EM George.Alverson@cern.ch RI Benussi, Luigi/O-9684-2014; Leonidov, Andrey/P-3197-2014; vilar, rocio/P-8480-2014; Dahms, Torsten/A-8453-2015; da Cruz e Silva, Cristovao/K-7229-2013; Grandi, Claudio/B-5654-2015; Raidal, Martti/F-4436-2012; Sen, Sercan/C-6473-2014; D'Alessandro, Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Stahl, Achim/E-8846-2011; Trocsanyi, Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Codispoti, Giuseppe/F-6574-2014; Montanari, Alessandro/J-2420-2012; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Paulini, Manfred/N-7794-2014; Vogel, Helmut/N-8882-2014; Ferguson, Thomas/O-3444-2014; Ragazzi, Stefano/D-2463-2009; Fassi, Farida/F-3571-2016; Goh, Junghwan/Q-3720-2016; Ruiz, Alberto/E-4473-2011; Govoni, Pietro/K-9619-2016; Yazgan, Efe/C-4521-2014; Gerbaudo, Davide/J-4536-2012; Menasce, Dario Livio/A-2168-2016; Sguazzoni, Giacomo/J-4620-2015; Dudko, Lev/D-7127-2012; Tinoco Mendes, Andre David/D-4314-2011; Marlow, Daniel/C-9132-2014; de Jesus Damiao, Dilson/G-6218-2012; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Novaes, Sergio/D-3532-2012; Bartalini, Paolo/E-2512-2014; Alves, Gilvan/C-4007-2013; Santoro, Alberto/E-7932-2014; Ligabue, Franco/F-3432-2014; Wulz, Claudia-Elisabeth/H-5657-2011; Tomei, Thiago/E-7091-2012; Mundim, Luiz/A-1291-2012; Kodolova, Olga/D-7158-2012; Tinti, Gemma/I-5886-2013; Ivanov, Andrew/A-7982-2013; Petrushanko, Sergey/D-6880-2012; Hill, Christopher/B-5371-2012; Liu, Sheng/K-2815-2013; Zhukov, Valery/K-3615-2013; Venturi, Andrea/J-1877-2012; Wimpenny, Stephen/K-8848-2013; Markina, Anastasia/E-3390-2012; Lokhtin, Igor/D-7004-2012; Della Ricca, Giuseppe/B-6826-2013; Azarkin, Maxim/N-2578-2015; Dubinin, Mikhail/I-3942-2016; Paganoni, Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Vilela Pereira, Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016; Haj Ahmad, Wael/E-6738-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Bedoya, Cristina/K-8066-2014; My, Salvatore/I-5160-2015; Matorras, Francisco/I-4983-2015; Rovelli, Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Leonidov, Andrey/M-4440-2013; Andreev, Vladimir/M-8665-2015; TUVE', Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012 OI Benussi, Luigi/0000-0002-2363-8889; Dahms, Torsten/0000-0003-4274-5476; Grandi, Claudio/0000-0001-5998-3070; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Stahl, Achim/0000-0002-8369-7506; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Codispoti, Giuseppe/0000-0003-0217-7021; Montanari, Alessandro/0000-0003-2748-6373; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Calvo Alamillo, Enrique/0000-0002-1100-2963; Paulini, Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023; Ferguson, Thomas/0000-0001-5822-3731; Ragazzi, Stefano/0000-0001-8219-2074; Diemoz, Marcella/0000-0002-3810-8530; Tricomi, Alessia Rita/0000-0002-5071-5501; Fassi, Farida/0000-0002-6423-7213; Ghezzi, Alessio/0000-0002-8184-7953; Demaria, Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450; Covarelli, Roberto/0000-0003-1216-5235; Ciulli, Vitaliano/0000-0003-1947-3396; Fiorendi, Sara/0000-0003-3273-9419; Martelli, Arabella/0000-0003-3530-2255; Gonzi, Sandro/0000-0003-4754-645X; Heath, Helen/0000-0001-6576-9740; Goh, Junghwan/0000-0002-1129-2083; Ruiz, Alberto/0000-0002-3639-0368; Govoni, Pietro/0000-0002-0227-1301; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Longo, Egidio/0000-0001-6238-6787; Di Matteo, Leonardo/0000-0001-6698-1735; Boccali, Tommaso/0000-0002-9930-9299; Menasce, Dario Livio/0000-0002-9918-1686; Bilki, Burak/0000-0001-9515-3306; Sguazzoni, Giacomo/0000-0002-0791-3350; Dudko, Lev/0000-0002-4462-3192; 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Flix, Josep/0000-0003-2688-8047 FU BMWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MEYS (Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER (Estonia) [SF0690030s09]; ERDF (Estonia); Academy of Finland (Finland); MEC (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU (Korea); LAS (Lithuania); CINVESTAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MON (Russia); RosAtom (Russia); RAS (Russia); RFBR (Russia); MSTD (Serbia); SEIDI (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEP (Thailand); IPST (Thailand); NECTEC (Thailand); TUBITAK (Turkey); TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE (USA); NSF (USA) FX We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staffs at CERN and other CMS institutes, and acknowledge support from BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MEYS (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR (Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEP, IPST and NECTEC (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA). NR 23 TC 57 Z9 57 U1 1 U2 106 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD MAY 13 PY 2013 VL 722 IS 1-3 BP 5 EP 27 DI 10.1016/j.physletb.2013.03.024 PG 23 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 141RX UT WOS:000318745300002 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Aguilo, E Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hormann, N Hrubec, J Jeitler, M Kiesenhofer, W Knunz, V Krammer, M Kratschmer, I Liko, D Mikulec, I Pernicka, M Rahbaran, B Rohringer, C Rohringer, H Schofbeck, R Strauss, J Taurok, A Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Bansal, S Cornelis, T De Wolf, EA Janssen, X Luyckx, S Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Staykova, Z Van Haevermaet, H Van Mechelen, P Van Remortel, N Van Spilbeeck, A Blekman, F Blyweert, S D'Hondt, J Suarez, RG Kalogeropoulos, A Maes, M Olbrechts, A Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I 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CA CMS Collaboration TI Search for anomalous production of highly boosted Z bosons decaying to mu(+)mu(-) in proton-proton collisions at root s=7 TeV SO PHYSICS LETTERS B LA English DT Article DE CMS; Physics; Dimuons; New phenomena; Excited quarks ID PP COLLISIONS; RESONANCES; CMS AB Results are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to mu(+)mu(-). Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at root s = 7 TeV, corresponding to an integrated luminosity of 5.0 fb(-1) recorded with the CMS detector. The shape of the observed transverse momentum distribution of Z bosons is consistent with standard model expectations. Constraints are obtained on models predicting the production of excited quarks decaying via electroweak processes. Assuming a compositeness scale that is equal to the excited quark mass as well as transition coupling strengths between Z bosons and excited quarks that are equal to standard model couplings to quarks, masses of excited quarks below 1.94 TeV are excluded at the 95% confidence level. For excited quark production via a novel contact interaction, masses below 2.22 TeV are excluded, even if the excited quarks do not couple to gluons. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved. C1 [Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Aguilo, E.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. 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S.; Kwon, E.; Lee, B.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Juodagalvis, A.] Vilnius State Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Martinez-Ortega, J.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand. [Bell, A. J.; Butler, P. H.; Doesburg, R.; Reucroft, S.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ansari, M. H.; Asghar, M. I.; Hoorani, H. R.; Khalid, S.; Khan, W. A.; Khurshid, T.; Qazi, S.; Shah, M. A.; Shoaib, M.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Bialkowska, H.; Boimska, B.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Natl Ctr Nucl Res, Otwock, Poland. [Brona, G.; Bunkowski, K.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Seixas, J.; Varela, J.; Vischia, P.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Belotelov, I.; Bunin, P.; Golutvin, I.; Gorbunov, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Malakhov, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Savina, M.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Evstyukhin, S.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Tlisov, D.; Toropin, A.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia. [Epshteyn, V.; Erofeeva, M.; Gavrilov, V.; Kossov, M.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Belyaev, A.; Boos, E.; Bunichev, V.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Klyukhin, V.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Popov, A.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Mesyats, G.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] State Res Ctr Russian Federat, Inst High Energy Phys, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Ekmedzic, M.; Krpic, D.; Milosevic, J.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Ekmedzic, M.; Krpic, D.; Milosevic, J.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Penis, A.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Quintario Olmeda, A.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Brun, H.; Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Piedra Gomez, J.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Graziano, A.; Jorda, C.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Benitez, J. F.; Bernet, C.; Bianchi, G.; Bloch, P.; Bocci, A.; Bonato, A.; Botta, C.; Breuker, H.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; D'Enterria, D.; Dabrowski, A.; De Roeck, A.; Di Guida, S.; Dobson, M.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Georgiou, G.; Giffels, M.; Gigi, D.; Gill, K.; Giordano, D.; Giunta, M.; Glege, F.; Garrido, R. Gomez-Reino; Govoni, P.; Gowdy, S.; Guida, R.; Hansen, M.; Harris, P.; Hartl, C.; Harvey, J.; Hegner, B.; Hinzmann, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Kousouris, K.; Lecoq, P.; Lee, Y. -J.; Lenzi, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Musella, P.; Nesvold, E.; Orimoto, T.; Orsini, L.; Cortezon, E. Palencia; Perez, E.; Perrozzi, L.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Quertenmont, L.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Rolandi, G.; Rovelli, C.; Rovere, M.; Sakulin, H.; Santanastasio, F.; Schaefer, C.; Schwick, C.; Segoni, I.; Sekmen, S.; Sharma, A.; Siegrist, P.; Silva, P.; Simon, M.; Sphicas, P.; Spiga, D.; Tsirou, A.; Veres, G. I.; Vlimant, J. R.; Woehri, H. K.; Worm, S. D.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.] Paul Scherrer Inst, Villigen, Switzerland. [Baeni, L.; Bortignon, P.; Buchmann, M. A.; Casal, B.; Chanon, N.; Deisher, A.; Dissertori, G.; Dittmar, M.; Donega, M.; Duenser, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hits, D.; Lecomte, P.; Lustermann, W.; Marini, A. C.; del Arbol, P. Martinez Ruiz; Mohr, N.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pandolfi, F.; Pape, L.; Pauss, F.; Peruzzi, M.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Starodumov, A.; Stieger, B.; Takahashi, M.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, H. A.; Wehrli, L.] ETH, Inst Particle Phys, Zurich, Switzerland. [Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Robmann, P.; Snoek, H.; Tupputi, S.; Verzetti, M.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Singh, A. P.; Volpe, R.; Yu, S. S.] Natl Cent Univ, Chungli, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Dietz, C.; Grundler, U.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Majumder, D.; Petrakou, E.; Shi, X.; Shiu, J. G.; Tzeng, Y. M.; Wan, X.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Karapinar, G.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yalvac, M.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Cankocak, K.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine. [Bostock, F.; Brooke, J. J.; Clement, E.; Cussans, D.; Flacher, H.; Frazier, R.; Goldstein, J.; Grimes, M.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Williams, T.] Univ Bristol, Bristol, Avon, England. [Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Beuselinck, R.; Buchmuller, O.; Coiling, D.; Cripps, N.; Cutajar, M.; Dauncey, P.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pela, J.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Stoye, M.; Tapper, A.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leggat, D.; Leslie, D.; Martin, W.; Reid, I. D.; Symonds, P.; Teodorescu, L.; Turner, M.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.; Liu, H.; Scarborough, T.] Baylor Univ, Waco, TX 76798 USA. [Charaf, O.; Henderson, C.; Rumerio, P.] Univ Alabama, Tuscaloosa, AL USA. [Avetisyan, A.; Bose, T.; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Alimena, J.; Bhattacharya, S.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Laird, E.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Conway, R.; Cox, P. T.; Dolen, J.; Erbacher, R.; Gardner, M.; Houtz, R.; Ko, W.; Kopecky, A.; Lander, R.; Miceli, T.; Pellett, D.; Ricci-tam, F.; Rutherford, B.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez] Univ Calif Davis, Davis, CA 95616 USA. [Andreev, V.; Cline, D.; Cousins, R.; Duris, J.; Erhan, S.; Everaerts, P.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Traczyk, P.; Valuev, V.; Weber, M.] Univ Calif Los Angeles, Los Angeles, CA USA. [Babb, J.; Clare, R.; Dinardo, M. E.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Paramesvaran, S.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Cittolin, S.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Macneill, I.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pieri, M.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; West, C.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Apresyan, A.; Bornheim, A.; Chen, Y.; Di Marco, E.; Duarte, J.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Spiropulu, M.; Timciuc, V.; Veverka, J.; Wilkinson, R.; Xie, S.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Azzolini, V.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Liu, Y. F.; Paulini, M.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA. [Alexander, J.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Khukhunaishvili, A.; Kreis, B.; Mirman, N.; Kaufman, G. Nicolas; Patterson, J. R.; Ryd, A.; Salvati, E.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Tucker, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Elvira, V. D.; Fisk, I.; Freeman, J.; Gao, Y.; Green, D.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jindariani, S.; Johnson, M.; Joshi, U.; Kilminster, B.; Klima, B.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Linacre, J.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Maruyama, S.; Mason, D.; McBride, P.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Prokofyev, O.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Tran, N. V.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Cheng, T.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Low, J. F.; Matchev, K.; Milenovic, P.; Mitselmakher, G.; Muniz, L.; Remington, R.; Rinkevicius, A.; Sellers, R.; Skhirtladze, N.; Snowball, M.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Gaultney, V.; Hewamanage, S.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Veeraraghavan, V.; Weinberg, M.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Hohlmann, M.; Kalakhety, H.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Bucinskaite, I.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Evdokimov, O.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Griffiths, S.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Onel, Y.; Ozok, F.; Sen, S.; Tiras, E.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bolognesi, S.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Kenny, R. P., III; Murray, M.; Noonan, D.; Sanders, S.; Stringer, R.; Tinti, G.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Calvert, B.; Eno, S. C.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kim, M.; Kolberg, T.; Lu, Y.; Marionneau, M.; Mignerey, A. C.; Pedro, K.; Peterman, A.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Apyan, A.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Kim, Y.; Klute, M.; Krajczar, K.; Li, W.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Wyslouch, B.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Dahmes, B.; De Benedetti, A.; Franzoni, G.; Gude, A.; Kao, S. C.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.; Turkewitz, J.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.] Univ Mississippi, Oxford, MS USA. [Avdeeva, E.; Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Chasco, M.; Haley, J.; Nash, D.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Mucia, N.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Brinkerhoff, A.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Planer, M.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Wolf, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Hill, C.; Hughes, R.; Kotov, K.; Ling, T. Y.; Puigh, D.; Rodenburg, M.; Vuosalo, C.; Williams, G.; Winer, B. L.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hegeman, J.; Hunt, A.; Jindal, P.; Pegna, D. Lopes; Lujan, P.; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Raval, A.; Safdi, B.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Brownson, E.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. 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G.; Florez, C.; Greene, S.; Gurrola, A.; Johns, W.; Johnston, C.; Kurt, P.; Maguire, C.; Melo, A.; Sharma, M.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA. [Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Goodell, J.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Wood, J.; Yohay, R.] Univ Virginia, Charlottesville, VA USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Don, C. Kottachchi Kankanamge; Lamichhane, P.; Sakharov, A.] Wayne State Univ, Detroit, MI USA. [Anderson, M.; Bachtis, M.; Belknap, D.; Borrello, L.; Carlsmith, D.; Cepeda, M.; Dasu, S.; Friis, E.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Herve, A.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Ojalvo, I.; Palmonari, F.; Pierro, G. A.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.] Univ Wisconsin, Madison, WI 53706 USA. 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[Krajczar, K.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Kamon, T.] Kyungpook Natl Univ, Taegu, South Korea. RP Alverson, G (reprint author), Northeastern Univ, Boston, MA 02115 USA. EM George.Alverson@cern.ch RI Govoni, Pietro/K-9619-2016; Yazgan, Efe/C-4521-2014; Gerbaudo, Davide/J-4536-2012; Dudko, Lev/D-7127-2012; Tinoco Mendes, Andre David/D-4314-2011; Marlow, Daniel/C-9132-2014; de Jesus Damiao, Dilson/G-6218-2012; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Novaes, Sergio/D-3532-2012; Bartalini, Paolo/E-2512-2014; Santoro, Alberto/E-7932-2014; Ligabue, Franco/F-3432-2014; Wulz, Claudia-Elisabeth/H-5657-2011; Codispoti, Giuseppe/F-6574-2014; Montanari, Alessandro/J-2420-2012; Hill, Christopher/B-5371-2012; Liu, Sheng/K-2815-2013; Zhukov, Valery/K-3615-2013; Venturi, Andrea/J-1877-2012; Wimpenny, Stephen/K-8848-2013; Markina, Anastasia/E-3390-2012; Lokhtin, Igor/D-7004-2012; Tomei, Thiago/E-7091-2012; Zalewski, Piotr/H-7335-2013; Mundim, Luiz/A-1291-2012; Tinti, Gemma/I-5886-2013; Ivanov, Andrew/A-7982-2013; Petrushanko, Sergey/D-6880-2012; Azarkin, Maxim/N-2578-2015; Dubinin, Mikhail/I-3942-2016; Paganoni, Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Vilela Pereira, Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; kumari, uttara/P-6779-2016; Goh, Junghwan/Q-3720-2016; Ruiz, Alberto/E-4473-2011; My, Salvatore/I-5160-2015; Matorras, Francisco/I-4983-2015; Ragazzi, Stefano/D-2463-2009; Rovelli, Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Leonidov, Andrey/M-4440-2013; Andreev, Vladimir/M-8665-2015; TUVE', Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012; Della Ricca, Giuseppe/B-6826-2013; vilar, rocio/P-8480-2014; da Cruz e Silva, Cristovao/K-7229-2013; Grandi, Claudio/B-5654-2015; Raidal, Martti/F-4436-2012; Lazzizzera, Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; D'Alessandro, Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Stahl, Achim/E-8846-2011; Trocsanyi, Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Bedoya, Cristina/K-8066-2014; Michelotto, Michele/A-9571-2013; Gribushin, Andrei/J-4225-2012; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Paulini, Manfred/N-7794-2014; Vogel, Helmut/N-8882-2014; Ferguson, Thomas/O-3444-2014; Benussi, Luigi/O-9684-2014; Leonidov, Andrey/P-3197-2014 OI Govoni, Pietro/0000-0002-0227-1301; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Dudko, Lev/0000-0002-4462-3192; Tinoco Mendes, Andre David/0000-0001-5854-7699; de Jesus Damiao, Dilson/0000-0002-3769-1680; Novaes, Sergio/0000-0003-0471-8549; Ligabue, Franco/0000-0002-1549-7107; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Codispoti, Giuseppe/0000-0003-0217-7021; Montanari, Alessandro/0000-0003-2748-6373; Hill, Christopher/0000-0003-0059-0779; Wimpenny, Stephen/0000-0003-0505-4908; Tomei, Thiago/0000-0002-1809-5226; Mundim, Luiz/0000-0001-9964-7805; Ivanov, Andrew/0000-0002-9270-5643; Dubinin, Mikhail/0000-0002-7766-7175; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Vilela Pereira, Antonio/0000-0003-3177-4626; Sznajder, Andre/0000-0001-6998-1108; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; kumari, uttara/0000-0001-9628-4770; Goh, Junghwan/0000-0002-1129-2083; Ruiz, Alberto/0000-0002-3639-0368; My, Salvatore/0000-0002-9938-2680; Matorras, Francisco/0000-0003-4295-5668; Ragazzi, Stefano/0000-0001-8219-2074; Rovelli, Tiziano/0000-0002-9746-4842; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Della Ricca, Giuseppe/0000-0003-2831-6982; Grandi, Claudio/0000-0001-5998-3070; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Stahl, Achim/0000-0002-8369-7506; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Bedoya, Cristina/0000-0001-8057-9152; Michelotto, Michele/0000-0001-6644-987X; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Calvo Alamillo, Enrique/0000-0002-1100-2963; Paulini, Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023; Ferguson, Thomas/0000-0001-5822-3731; Benussi, Luigi/0000-0002-2363-8889; FU BMWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MEYS (Bulgaria); CERN (China); CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER (Estonia); ERDF (Estonia); Academy of Finland (Finland); MEC (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU (Korea); LAS (Lithuania); CINVESTAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MON (Russia); RosAtom (Russia); RAS (Russia); RFBR (Russia); MSTD (Serbia); SEIDI (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEP (Thailand); IPST (Thailand); NECTEC (Thailand); TUBITAK (Turkey); TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE (USA); NSF (USA); [SF0690030s09] FX We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MEYS (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR (Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEP, IPST and NECTEC (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA). NR 36 TC 6 Z9 6 U1 1 U2 98 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD MAY 13 PY 2013 VL 722 IS 1-3 BP 28 EP 47 DI 10.1016/j.physletb.2013.03.037 PG 20 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 141RX UT WOS:000318745300003 ER PT J AU Aaltonen, T Gonzalez, BA Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, JA Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, R Badgett, W Bae, T Barbaro-Galtieri, A Barnes, VE Barnett, BA Barria, P Bartos, P Bauce, M Bedeschi, F Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Bhatti, A Bisello, D Bizjak, I Bland, KR Blumenfeld, B Bocci, A Bodek, A Bortoletto, D Boudreau, J Boveia, A Brigliadori, L Bromberg, C Brucken, E Budagov, J Budd, HS Burkett, K Busetto, G Bussey, P Buzatu, A Calamba, A Calancha, C Camarda, S Campanelli, M Campbell, M Canelli, F Carls, B Carlsmith, D Carosi, R Carrillo, S Carron, S Casal, B Casarsa, M Castro, A Catastini, P Cauz, D Cavaliere, V Cavalli-Sforza, M Cerri, A Cerrito, L Chen, YC Chertok, M Chiarelli, G Chlachidze, G Chlebana, F Cho, K Chokheli, D Chung, WH Chung, YS Ciocci, MA Clark, A Clarke, C Compostella, G Convery, ME Conway, J Corbo, M Cordelli, M Cox, CA Cox, DJ Crescioli, F Cuevas, J Culbertson, R Dagenhart, D d'Ascenzo, N Datta, M de Barbaro, R Dell'Orso, M Demortier, L Deninno, M Devoto, E d'Errico, M Di Canto, A Di Ruzza, B Dittmann, JR D'Onofrio, M Donati, S Dong, P Dorigo, M Dorigo, T Ebina, K Elagin, A Eppig, A Erbacher, R Errede, S Ershaidat, N Eusebi, R Farrington, S Feindtz, M Fernandez, JP Field, R Flanagan, G Forrest, R Frank, MJ Franklin, M Freeman, JC Funakoshi, Y Furic, I Gallinaro, M Garcia, JE Garfinkel, AF Garosi, R Gerberich, H Gerchtein, E Giagu, S Giakoumopoulou, V Giannetti, R Gibson, K Ginsburg, CM Giokaris, N Giromini, R Giurgiu, G Glagolev, V Glenzinski, D Gold, M Goldin, D Goldschmidt, N Golossanov, A Gomez, G Gomez-Ceballos, G Goncharov, M Gonzalez, O Gorelov, I Goshaw, AT Goulianos, K Grinstein, S Grosso-Pilcher, C Group, RC da Costa, JG Hahn, SR Halkiadakis, E Hamaguchi, A Han, JY Happacher, F Hara, K Hare, D Hare, M Harr, RF Hatakeyama, K Hays, C Heck, M Heinrich, J Herndon, M Hewamanage, S Hocker, A Hopkins, W Horn, D Hou, S Hughes, RE Hurwitz, M Husernann, U Hussain, N Hussein, M Huston, J Introzzi, G Iori, M Ivanov, A James, E Jang, D Jayatilaka, B Jeon, EJ Jindariani, S Jones, M Joo, KK Jun, SY Junk, TR Kamon, T Karchin, PE Kasmi, A Kato, Y Ketchum, W Keung, J Khotilovich, V Kilminster, B Kim, DH Kim, HS Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kim, YJ Kimura, N Kirby, M Klimenko, S Knoepfel, K Kondo, K Kong, DJ Konigsberg, TJ Kotwal, AV Kreps, M Kroll, J Krop, D Kruse, M Krutelyov, V Kuhr, T Kurata, M Kwang, S Laasanen, AT Lami, S Lammel, S Lancaster, M Lander, RL Lannon, K Lath, A Latino, G LeCompte, T Lee, E Lee, HS Lee, JS Lee, SW Leo, S Leone, S Lewis, JD Limosani, A Lin, CJ Lindgren, M Lipeles, E Lister, A Litvintsev, DO Liu, C Liu, H Liu, Q Liu, T Lockwitz, S Loginov, A Lucchesi, D Lueck, J Lujan, P Lukens, P Lungu, G Lys, J Lysak, R Madrak, R Maeshima, K Maestro, P Malik, S Manca, G Manousakis-Katsikakis, A Margaroli, F Marino, C Martinez, M Mastrandrea, P Matera, K Mattson, ME Mazzacane, A Mazzanti, R McFarland, KS McIntyre, P McNulty, R Mehta, A Mehtala, P Mesropian, C Miao, T Mietlicki, D Mitra, A Miyake, H Moed, S Moggi, N Mondragon, MN Moon, CS Moore, R Morello, MJ Morlock, J Fernandez, PM Mukherjee, A Muller, T Murat, P Mussini, M Nachtman, J Nagai, Y Naganoma, J Nakano, I Napier, A Nett, J Neu, C Neubauer, MS Nielsen, J Nodulman, L Noh, SY Norniella, O Oakes, L Oh, SH Oh, YD Oksuzian, I Okusawa, T Orava, R Ortolan, L Griso, SP Pagliarone, C Palencia, E Papadimitriou, V Paramonov, AA Patrick, J Pauletta, G Paulini, M Paus, C Pellett, DE Penzo, A Phillips, TJ Piacentino, G Pianori, E Pilot, J Pitts, K Plager, C Pondrom, L Poprocki, S Potamianos, K Prokoshin, F Pranko, A Ptohos, F Punzi, G Rahaman, A Ramakrishnan, V Ranjan, N Redondo, I Renton, R Rescigno, M Riddick, T Rimondi, F Ristori, L Robson, A Rodrigo, T Rodriguez, T Rogers, E Rolli, S Roser, R Ruffini, E Ruiz, A Russ, J Rusu, V Safonov, A Sakumoto, WK Sakurai, Y Santi, L Sato, K Saveliev, V Savoy-Navarro, A Schlabach, R Schmidt, A Schmidt, EE Schwarz, T Scodellaro, L Scribano, A Scuri, F Seidel, S Seiya, Y Semenov, A Sforza, F Shalhout, SZ Shears, T Shepard, PF Shimojima, M Shochet, M Shreyber-Tecker, I Simonenko, A Sinervo, P Sliwa, K Smith, JR Snider, FD Soha, A Sorin, V Song, H Squillacioti, P Stancari, M St Denis, R Stelzer, B Stelzer-Chilton, O Stentz, D Strologas, J Strycker, GL Sudo, Y Sukhanov, A Suslov, I Takemasa, K Takeuchi, Y Tang, J Tecchio, M Teng, PK Thom, J Thome, J Thompson, GA Thomson, E Toback, D Tokar, S Tollefson, K Tomura, T Tonelli, D Torre, S Torretta, D Totaro, P Trovato, M Ukegawa, F Uozumi, S Varganov, A Vazquez, F Velev, G Vellidis, C Vidal, M Vila, I Vilar, R Vizan, J Vogel, M Volpi, G Wagner, P Wagner, RL Wakisaka, T Wallny, R Wang, SM Warburton, A Waters, D Wester, WC Whiteson, D Wicklund, AB Wicklund, E Wilbur, S Wick, F Williams, HH Wilson, JS Wilson, P Winer, BL Wittich, P Wolbers, S Wolfe, H Wright, T Wu, X Wu, Z Yamamoto, K Yamato, D Yang, T Yang, UK Yang, YC Yao, WM Yeh, GP Yi, K Yoh, J Yorita, K Yoshida, T Yu, GB Yu, I Yu, SS Yun, JC Zanetti, A Zeng, Y Zhou, C Zucchelli, S AF Aaltonen, T. Alvarez Gonzalez, B. Amerio, S. Amidei, D. Anastassov, A. Annovi, A. Antos, J. Apollinari, G. Appel, J. A. Arisawa, T. Artikov, A. Asaadi, J. Ashmanskas, W. Auerbach, B. Aurisano, A. Azfar, R. Badgett, W. Bae, T. Barbaro-Galtieri, A. Barnes, V. E. Barnett, B. A. Barria, P. Bartos, P. Bauce, M. Bedeschi, F. Behari, S. Bellettini, G. Bellinger, J. Benjamin, D. Beretvas, A. Bhatti, A. Bisello, D. Bizjak, I. Bland, K. R. Blumenfeld, B. Bocci, A. Bodek, A. Bortoletto, D. Boudreau, J. Boveia, A. Brigliadori, L. Bromberg, C. Brucken, E. Budagov, J. Budd, H. S. Burkett, K. Busetto, G. Bussey, P. Buzatu, A. Calamba, A. Calancha, C. Camarda, S. Campanelli, M. Campbell, M. Canelli, F. Carls, B. Carlsmith, D. Carosi, R. Carrillo, S. Carron, S. Casal, B. Casarsa, M. Castro, A. Catastini, P. Cauz, D. Cavaliere, V. Cavalli-Sforza, M. Cerri, A. Cerrito, L. Chen, Y. C. Chertok, M. Chiarelli, G. Chlachidze, G. Chlebana, F. Cho, K. Chokheli, D. Chung, W. H. Chung, Y. S. Ciocci, M. A. Clark, A. Clarke, C. Compostella, G. Convery, M. E. Conway, J. Corbo, M. Cordelli, M. Cox, C. A. Cox, D. J. Crescioli, F. Cuevas, J. Culbertson, R. Dagenhart, D. d'Ascenzo, N. Datta, M. de Barbaro, R. Dell'Orso, M. Demortier, L. Deninno, M. Devoto, E. d'Errico, M. Di Canto, A. Di Ruzza, B. Dittmann, J. R. D'Onofrio, M. Donati, S. Dong, P. Dorigo, M. Dorigo, T. Ebina, K. Elagin, A. Eppig, A. Erbacher, R. Errede, S. Ershaidat, N. Eusebi, R. Farrington, S. Feindtz, M. Fernandez, J. P. Field, R. Flanagan, G. Forrest, R. Frank, M. J. Franklin, M. Freeman, J. C. Funakoshi, Y. Furic, I. Gallinaro, M. Garcia, J. E. Garfinkel, A. F. Garosi, R. Gerberich, H. Gerchtein, E. Giagu, S. Giakoumopoulou, V. Giannetti, R. Gibson, K. Ginsburg, C. M. Giokaris, N. Giromini, R. Giurgiu, G. Glagolev, V. Glenzinski, D. Gold, M. Goldin, D. Goldschmidt, N. Golossanov, A. Gomez, G. Gomez-Ceballos, G. Goncharov, M. Gonzalez, O. Gorelov, I. Goshaw, A. T. Goulianos, K. Grinstein, S. Grosso-Pilcher, C. Group, R. C. Guimaraes da Costa, J. Hahn, S. R. Halkiadakis, E. Hamaguchi, A. Han, J. Y. Happacher, F. Hara, K. Hare, D. Hare, M. Harr, R. F. Hatakeyama, K. Hays, C. Heck, M. Heinrich, J. Herndon, M. Hewamanage, S. Hocker, A. Hopkins, W. Horn, D. Hou, S. Hughes, R. E. Hurwitz, M. Husernann, U. Hussain, N. Hussein, M. Huston, J. Introzzi, G. Iori, M. Ivanov, A. James, E. Jang, D. Jayatilaka, B. Jeon, E. J. Jindariani, S. Jones, M. Joo, K. K. Jun, S. Y. Junk, T. R. Kamon, T. Karchin, P. E. Kasmi, A. Kato, Y. Ketchum, W. Keung, J. Khotilovich, V. Kilminster, B. Kim, D. H. Kim, H. S. Kim, J. E. Kim, M. J. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, Y. J. Kimura, N. Kirby, M. Klimenko, S. Knoepfel, K. Kondo, K. Kong, D. J. Konigsberg, T. J. Kotwal, A. V. Kreps, M. Kroll, J. Krop, D. Kruse, M. Krutelyov, V. Kuhr, T. Kurata, M. Kwang, S. Laasanen, A. T. Lami, S. Lammel, S. Lancaster, M. Lander, R. L. Lannon, K. Lath, A. Latino, G. LeCompte, T. Lee, E. Lee, H. S. Lee, J. S. Lee, S. W. Leo, S. Leone, S. Lewis, J. D. Limosani, A. Lin, C. -J. Lindgren, M. Lipeles, E. Lister, A. Litvintsev, D. O. Liu, C. Liu, H. Liu, Q. Liu, T. Lockwitz, S. Loginov, A. Lucchesi, D. Lueck, J. Lujan, P. Lukens, P. Lungu, G. Lys, J. Lysak, R. Madrak, R. Maeshima, K. Maestro, P. Malik, S. Manca, G. Manousakis-Katsikakis, A. Margaroli, F. Marino, C. Martinez, M. Mastrandrea, P. Matera, K. Mattson, M. E. Mazzacane, A. Mazzanti, R. McFarland, K. S. McIntyre, P. McNulty, R. Mehta, A. Mehtala, P. Mesropian, C. Miao, T. Mietlicki, D. Mitra, A. Miyake, H. Moed, S. Moggi, N. Mondragon, M. N. Moon, C. S. Moore, R. Morello, M. J. Morlock, J. Movilla Fernandez, P. Mukherjee, A. Muller, Th. Murat, P. Mussini, M. Nachtman, J. Nagai, Y. Naganoma, J. Nakano, I. Napier, A. Nett, J. Neu, C. Neubauer, M. S. Nielsen, J. Nodulman, L. Noh, S. Y. Norniella, O. Oakes, L. Oh, S. H. Oh, Y. D. Oksuzian, I. Okusawa, T. Orava, R. Ortolan, L. Griso, S. Pagan Pagliarone, C. Palencia, E. Papadimitriou, V. Paramonov, A. A. Patrick, J. Pauletta, G. Paulini, M. Paus, C. Pellett, D. E. Penzo, A. Phillips, T. J. Piacentino, G. Pianori, E. Pilot, J. Pitts, K. Plager, C. Pondrom, L. Poprocki, S. Potamianos, K. Prokoshin, F. Pranko, A. Ptohos, F. Punzi, G. Rahaman, A. Ramakrishnan, V. Ranjan, N. Redondo, I. Renton, R. Rescigno, M. Riddick, T. Rimondi, F. Ristori, L. Robson, A. Rodrigo, T. Rodriguez, T. Rogers, E. Rolli, S. Roser, R. Ruffini, E. Ruiz, A. Russ, J. Rusu, V. Safonov, A. Sakumoto, W. K. Sakurai, Y. Santi, L. Sato, K. Saveliev, V. Savoy-Navarro, A. Schlabach, R. Schmidt, A. Schmidt, E. E. Schwarz, T. Scodellaro, L. Scribano, A. Scuri, F. Seidel, S. Seiya, Y. Semenov, A. Sforza, F. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shochet, M. Shreyber-Tecker, I. Simonenko, A. Sinervo, P. Sliwa, K. Smith, J. R. Snider, F. D. Soha, A. Sorin, V. Song, H. Squillacioti, P. Stancari, M. St Denis, R. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Strycker, G. L. Sudo, Y. Sukhanov, A. Suslov, I. Takemasa, K. Takeuchi, Y. Tang, J. Tecchio, M. Teng, P. K. Thom, J. Thome, J. Thompson, G. A. Thomson, E. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Trovato, M. Ukegawa, F. Uozumi, S. Varganov, A. Vazquez, F. Velev, G. Vellidis, C. Vidal, M. Vila, I. Vilar, R. Vizan, J. Vogel, M. Volpi, G. Wagner, P. Wagner, R. L. Wakisaka, T. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Wester, W. C., III Whiteson, D. Wicklund, A. B. Wicklund, E. Wilbur, S. Wick, F. Williams, H. H. Wilson, J. S. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, H. Wright, T. Wu, X. Wu, Z. Yamamoto, K. Yamato, D. Yang, T. Yang, U. K. Yang, Y. C. Yao, W. -M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanetti, A. Zeng, Y. Zhou, C. Zucchelli, S. CA CDF Collaboration TI W-boson polarization measurement in the t(t)over-bar dilepton channel using the CDF II detector SO PHYSICS LETTERS B LA English DT Article AB We present a measurement of the W-boson polarization in top-quark decays in t (t) over bar events with decays to dilepton final states using data corresponding to 5.1 fb(-1) of integrated luminosity in p (p) over bar collisions collected by the CDF II detector at the Tevatron. Assuming a top-quark mass of 172.5 GeV/c(2), a simultaneous measurement of the fractions of longitudinal (f(0)) and right-handed (f(+)) W-bosons yields the results f(0) = 0.70(-0.17)(+0.18)(stat) +/- 0.06(syst) and f(+) = -0.09 +/- 0.09(stat) +/- 0:03(syst). Combining this measurement with our previous measurement based on single-lepton final states, we obtain f(0) = 0.84 +/- 0.09(stat) +/- 0.05(syst) and f(+) = -0.16 +/- 0.05(stat) +/- 0.04(syst). The results are consistent with the standard model expectation. (C) 2013 Elsevier B.V. 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[Bae, T.; Cho, K.; Jeon, E. J.; Kamon, T.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kim, Y. J.; Kong, D. J.; Lee, J. S.; Mitra, A.; Moon, C. S.; Noh, S. Y.; Oh, Y. D.; Uozumi, S.; Yang, Y. C.; Yu, I.] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea. [Bae, T.; Cho, K.; Jeon, E. J.; Joo, K. K.; Kamon, T.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kim, Y. J.; Kong, D. J.; Lee, J. S.; Moon, C. S.; Noh, S. Y.; Oh, Y. D.; Uozumi, S.; Yang, Y. C.; Yu, I.] Seoul Natl Univ, Seoul 151742, South Korea. [Bae, T.; Cho, K.; Jeon, E. J.; Joo, K. K.; Kamon, T.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kim, Y. J.; Kong, D. J.; Lee, J. S.; Moon, C. S.; Noh, S. Y.; Oh, Y. D.; Uozumi, S.; Yang, Y. C.; Yu, I.] Sungkyunkwan Univ, Suwon 440746, South Korea. [Bae, T.; Cho, K.; Jeon, E. J.; Joo, K. K.; Kamon, T.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kim, Y. J.; Kong, D. J.; Lee, J. S.; Moon, C. S.; Noh, S. Y.; Oh, Y. D.; Uozumi, S.; Yang, Y. C.; Yu, I.] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea. [Cho, K.; Jeon, E. J.; Joo, K. K.; Kamon, T.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kim, Y. J.; Kong, D. J.; Lee, J. S.; Moon, C. S.; Noh, S. Y.; Oh, Y. D.; Uozumi, S.; Yang, Y. C.; Yu, I.] Chonnam Natl Univ, Kwangju 500757, South Korea. [Bae, T.; Jeon, E. J.; Joo, K. K.; Kamon, T.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kim, Y. J.; Kong, D. J.; Lee, J. S.; Moon, C. S.; Noh, S. Y.; Oh, Y. D.; Uozumi, S.; Yang, Y. C.; Yu, I.] Chonbuk Natl Univ, Jeonju 561756, South Korea. [Barbaro-Galtieri, A.; Cerri, A.; Lin, C. -J.; Lujan, P.; Lys, J.; Nielsen, J.; Pranko, A.; Yao, W. -M.] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [D'Onofrio, M.; Manca, G.; McNulty, R.; Mehta, A.; Shears, T.] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England. [Bizjak, I.; Campanelli, M.; Cerrito, L.; Lancaster, M.; Riddick, T.; Waters, D.] UCL, London WC1E 6BT, England. 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EM csmoon@fnal.gov RI vilar, rocio/P-8480-2014; Garcia, Jose /H-6339-2015; ciocci, maria agnese /I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Prokoshin, Fedor/E-2795-2012; Introzzi, Gianluca/K-2497-2015; Piacentino, Giovanni/K-3269-2015; song, hao/I-2782-2012; Gorelov, Igor/J-9010-2015; Punzi, Giovanni/J-4947-2012; Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Robson, Aidan/G-1087-2011; maestro, paolo/E-3280-2010; Chiarelli, Giorgio/E-8953-2012; Lysak, Roman/H-2995-2014; Moon, Chang-Seong/J-3619-2014; Scodellaro, Luca/K-9091-2014 OI Brucken, Jens Erik/0000-0001-6066-8756; ciocci, maria agnese /0000-0003-0002-5462; Prokoshin, Fedor/0000-0001-6389-5399; Introzzi, Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924; song, hao/0000-0002-3134-782X; Gorelov, Igor/0000-0001-5570-0133; Punzi, Giovanni/0000-0002-8346-9052; Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; maestro, paolo/0000-0002-4193-1288; Chiarelli, Giorgio/0000-0001-9851-4816; Moon, Chang-Seong/0000-0001-8229-7829; Scodellaro, Luca/0000-0002-4974-8330 FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A.P. Sloan Foundation; Bundesministerium fur Bildung und Forschung, Germany; Korean World Class University Program, the National Research Foundation of Korea; Science and Technology Facilities Council, UK; Royal Society, UK; Institut National de Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation for Basic Research; Ministerio de Ciencia e Innovacion, Spain; Programa Consolider-Ingenio, Spain; Slovak RD Agency; Academy of Finland; Australian Research Council (ARC) FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC). NR 17 TC 2 Z9 2 U1 2 U2 35 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD MAY 13 PY 2013 VL 722 IS 1-3 BP 48 EP 54 DI 10.1016/j.physletb.2013.03.032 PG 7 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 141RX UT WOS:000318745300004 ER PT J AU Adamczyk, L Agakishiev, G Aggarwal, MM Ahammed, Z Alakhverdyants, AV Alekseev, I Alford, J Anson, CD Arkhipkin, D Aschenauer, E Averichev, GS Balewski, J Banerjee, A Barnovska, Z Beavis, DR Bellwied, R Betancourt, MJ Betts, RR Bhasin, A Bhati, AK Bichsel, H Bielcik, J Bielcikova, J Bland, LC Bordyuzhin, IG Borowski, W Bouchet, J Brandin, AV Brovko, SG Bruna, E Bultmann, S Bunzarov, I Burton, TP Butterworth, J Cai, XZ Caines, H Sanchez, MCD Cebra, D Cendejas, R Cervantes, MC Chaloupka, P Chang, Z Chattopadhdyay, S Chen, HF Chen, JH Chen, JY Chen, L Cheng, J Cherney, M Chikanian, A Christie, W Chung, P Chwastowski, J Codrington, MJM Corliss, R Cramer, JG Crawford, HJ Cui, X Das, S Leyva, AD De Silva, LC Debbe, RR Dedovich, TG Deng, J de Souza, RD Dhamija, S Didenko, L Ding, F Dion, A Djawotho, P Dong, X Drachenberg, JL Draper, JE Du, CM Dunkelberger, LE Dunlop, JC Efimov, LG Elnimr, M Engelage, J Eppley, G Eun, L Evdokimov, O Fatemi, R Fazio, S Fedorisin, J Fersch, RG Filip, P Finch, E Fisyak, Y Gagliardi, CA Gangadharan, DR Geurts, F Gibson, A Gliske, S Gorbunov, YN Grebenyuk, OG Grosnick, D Gupta, S Guryn, W Haag, B Hajkova, O Hamed, A Han, LX Harris, JW Hays-Wehle, JP Heppelmann, S Hirsch, A Hoffmann, GW Hofman, DJ Horvat, S Huang, B Huang, HZ Huck, P Humanic, TJ Huo, L Igo, G Jacobs, WW Jena, C Judd, EG Kabana, S Kang, K Kapitan, J Kauder, K Ke, HW Keane, D Kechechyan, A Kesich, A Kikola, DP Kiryluk, J Kisel, I Kisiel, A Kizka, V Klein, SR Koetke, DD Kollegger, T Konzer, J Koralt, I Koroleva, L Korsch, W Kotchenda, L Kravtsov, P Krueger, K Kulakov, I Kumar, L Lamont, MAC Landgraf, JM LaPointe, S Lauret, J Lebedev, A Lednicky, R Lee, JH Leight, W LeVine, MJ Li, C Li, L Li, W Li, X Li, X Li, Y Li, ZM Lima, LM Lisa, MA Liu, F Ljubicic, T Llope, WJ Longacre, RS Lu, Y Luo, X Luszczak, A Ma, GL Ma, YG Don, DMMDM Mahapatra, DP Majka, R Mall, OI Margetis, S Markert, C Masui, H Matis, HS McDonald, D McShane, TS Mioduszewski, S Mitrovski, MK Mohammed, Y Mohanty, B Mondal, MM Morozov, B Munhoz, MG Mustafa, MK Naglis, M Nandi, BK Nasim, M Nayak, TK Nelson, JM Nogach, LV Novak, J Odyniec, G Ogawa, A Oh, K Ohlson, A Okorokov, V Oldag, EW Oliveira, RAN Olson, D Ostrowski, P Pachr, M Page, BS Pal, SK Pan, YX Pandit, Y Panebratsev, Y Pawlak, T Pawlik, B Pei, H Perkins, C Peryt, W Pile, P Planinic, M Pluta, J Plyku, D Poljak, N Porter, J Poskanzer, AM Powell, CB Pruneau, C Pruthi, NK Przybycien, M Pujahari, PR Putschke, J Qiu, H Raniwala, R Raniwala, S Ray, RL Redwine, R Reed, R Riley, CK Ritter, HG Roberts, JB Rogachevskiy, OV Romero, JL Ross, JF Ruan, L Rusnak, J Sahoo, NR Sahu, PK Sakrejda, I Salur, S Sandacz, A Sandweiss, J Sangaline, E Sarkar, A Schambach, J Scharenberg, RP Schmah, AM Schmidke, B Schmitz, N Schuster, TR Seele, J Seger, J Seyboth, P Shah, N Shahaliev, E Shao, M Sharma, B Sharma, M Shi, SS Shou, QY Sichtermann, EP Singaraju, RN Skoby, MJ Smirnov, D Smirnov, N Solanki, D Sorensen, P deSouza, UG Spinka, HM Srivastava, B Stanislaus, TDS Steadman, SG Stevens, JR Stock, R Strikhanov, M Stringfellow, B Suaide, AAP Suarez, MC Sumbera, M Sun, XM Sun, Y Sun, Z Surrow, B Svirida, DN Symons, TJM de Toledo, AS Takahashi, J Tang, AH Tang, Z Tarini, LH Tarnowsky, T Thein, D Thomas, JH Tian, J Timmins, AR Tlusty, D Tokarev, M Trentalange, S Tribble, RE Tribedy, P Trzeciak, BA Tsai, OD Turnau, J Ullrich, T Underwood, DG Van Buren, G van Nieuwenhuizen, G Vanfossen, JA Varma, R Vasconcelos, GMS Videbaek, F Viyogi, YP Vokal, S Voloshin, SA Vossen, A Wada, M Wang, F Wang, G Wang, H Wang, JS Wang, Q Wang, XL Wang, Y Webb, G Webb, JC Westfall, GD Whitten, C Wieman, H Wissink, SW Witt, R Witzke, W Wu, YF Xiao, Z Xie, W Xin, K Xu, H Xu, N Xu, QH Xu, W Xu, Y Xu, Z Xue, L Yang, Y Yang, Y Yepes, P Yi, Y Yip, K Yoo, IK Zawisza, M Zbroszczyk, H Zhang, JB Zhang, S Zhang, XP Zhang, Y Zhang, ZP Zhao, F Zhao, J Zhong, C Zhu, X Zhu, YH Zoulkarneeva, Y Zyzak, M AF Adamczyk, L. 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Rogachevskiy, O. V. Romero, J. L. Ross, J. F. Ruan, L. Rusnak, J. Sahoo, N. R. Sahu, P. K. Sakrejda, I. Salur, S. Sandacz, A. Sandweiss, J. Sangaline, E. Sarkar, A. Schambach, J. Scharenberg, R. P. Schmah, A. M. Schmidke, B. Schmitz, N. Schuster, T. R. Seele, J. Seger, J. Seyboth, P. Shah, N. Shahaliev, E. Shao, M. Sharma, B. Sharma, M. Shi, S. S. Shou, Q. Y. Sichtermann, E. P. Singaraju, R. N. Skoby, M. J. Smirnov, D. Smirnov, N. Solanki, D. Sorensen, P. deSouza, U. G. Spinka, H. M. Srivastava, B. Stanislaus, T. D. S. Steadman, S. G. Stevens, J. R. Stock, R. Strikhanov, M. Stringfellow, B. Suaide, A. A. P. Suarez, M. C. Sumbera, M. Sun, X. M. Sun, Y. Sun, Z. Surrow, B. Svirida, D. N. Symons, T. J. M. Szanto de Toledo, A. Takahashi, J. Tang, A. H. Tang, Z. Tarini, L. H. Tarnowsky, T. Thein, D. Thomas, J. H. Tian, J. Timmins, A. R. Tlusty, D. Tokarev, M. Trentalange, S. Tribble, R. E. Tribedy, P. Trzeciak, B. A. Tsai, O. D. Turnau, J. Ullrich, T. Underwood, D. G. Van Buren, G. van Nieuwenhuizen, G. Vanfossen, J. A., Jr. Varma, R. Vasconcelos, G. M. S. Videbaek, F. Viyogi, Y. P. Vokal, S. Voloshin, S. A. Vossen, A. Wada, M. Wang, F. Wang, G. Wang, H. Wang, J. S. Wang, Q. Wang, X. L. Wang, Y. Webb, G. Webb, J. C. Westfall, G. D. Whitten, C., Jr. Wieman, H. Wissink, S. W. Witt, R. Witzke, W. Wu, Y. F. Xiao, Z. Xie, W. Xin, K. Xu, H. Xu, N. Xu, Q. H. Xu, W. Xu, Y. Xu, Z. Xue, L. Yang, Y. Yang, Y. Yepes, P. Yi, Y. Yip, K. Yoo, I. -K. Zawisza, M. Zbroszczyk, H. Zhang, J. B. Zhang, S. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhao, F. Zhao, J. Zhong, C. Zhu, X. Zhu, Y. H. Zoulkarneeva, Y. Zyzak, M. CA STAR Collaboration TI J/psi production at high transverse momenta in p plus p and Au plus Au collisions at root s(NN)=200 GeV SO PHYSICS LETTERS B LA English DT Article DE J/psi suppression; Color-screening; Quarkonium; Heavy-ion collisions; STAR ID HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; D+AU COLLISIONS; STAR EXPERIMENT; DISTRIBUTIONS; DETECTOR; PROTON; FLAVOR; P+P AB We report J/psi spectra for transverse momenta P-T > 5 GeV/c at mid-rapidity in p + p and Au + Au collisions at root s(NN) = 200 GeV. The inclusive J/psi spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/psi yields for p(T) > 5 GeV/c in 0-30% central Au + Au collisions relative to the p + p yield scaled by the number of binary nucleon-nucleon collisions in Au + Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-p(T) pi(+/-) and low-p(T) J/psi at RHIC and high-p(T) J/psi at the LHC. (C) 2013 Elsevier B.V. All rights reserved. C1 [Adamczyk, L.; Przybycien, M.] AGH Univ Sci & Technol, Krakow, Poland. [Gliske, S.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA. [Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England. [Arkhipkin, D.; Aschenauer, E.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; Didenko, L.; Dion, A.; Dunlop, J. C.; Fazio, S.; Fisyak, Y.; Guryn, W.; Huang, B.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Mitrovski, M. K.; Ogawa, A.; Pile, P.; Ruan, L.; Schmidke, B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Crawford, H. J.; Engelage, J.; Judd, E. G.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Brovko, S. G.; Sanchez, M. Calderon de la Barca; Cebra, D.; Ding, F.; Draper, J. E.; Haag, B.; Kesich, A.; Mall, O. I.; Reed, R.; Romero, J. L.; Sangaline, E.] Univ Calif Davis, Davis, CA 95616 USA. [Cendejas, R.; Dunkelberger, L. E.; Huang, H. Z.; Igo, G.; Pan, Y. X.; Shah, N.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.; Zhao, F.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Derradi de Souza, R.; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil. [Chen, J. Y.; Chen, L.; Huck, P.; Ke, H. W.; Li, Z. M.; Liu, F.; Luo, X.; Shi, S. S.; Wu, Y. F.; Yang, Y.; Zhang, J. B.] Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China. [Betts, R. R.; Evdokimov, O.; Hofman, D. J.; Kauder, K.; Pei, H.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA. [Chwastowski, J.; Luszczak, A.] Cracow Univ Technol, Krakow, Poland. [Cherney, M.; Gorbunov, Y. N.; Don, D. M. M. D. Madagodagettige; McShane, T. S.; Ross, J. F.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA. [Bielcik, J.; Chaloupka, P.; Hajkova, O.; Pachr, M.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic. [Barnovska, Z.; Bielcikova, J.; Chung, P.; Kapitan, J.; Rusnak, J.; Sumbera, M.; Tlusty, D.] Nucl Phys Inst AS CR, Rez 25068, Czech Republic. [Kollegger, T.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, D-60054 Frankfurt, Germany. [Das, S.; Mahapatra, D. P.; Sahu, P. K.] Inst Phys, Bhubaneswar 751005, Orissa, India. [Nandi, B. K.; Pujahari, P. R.; Sarkar, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India. [Dhamija, S.; Jacobs, W. W.; Page, B. S.; Skoby, M. J.; Stevens, J. R.; Vossen, A.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA. [Alekseev, I.; Bordyuzhin, I. G.; Koroleva, L.; Morozov, B.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia. [Bhasin, A.; Gupta, S.] Univ Jammu, Jammu 180001, India. [Agakishiev, G.; Alakhverdyants, A. V.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Filip, P.; Kechechyan, A.; Kizka, V.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Tokarev, M.; Vokal, S.; Zoulkarneeva, Y.] Joint Inst Nucl Res, Dubna 141980, Russia. [Alford, J.; Bouchet, J.; Keane, D.; Kumar, L.; Margetis, S.; Pandit, Y.; Vanfossen, J. A., Jr.] Kent State Univ, Kent, OH 44242 USA. [Fatemi, R.; Fersch, R. G.; Korsch, W.; Webb, G.; Witzke, W.] Univ Kentucky, Lexington, KY 40506 USA. [Du, C. M.; Sun, Z.; Wang, J. S.; Xu, H.; Yang, Y.] Inst Modern Phys, Lanzhou, Peoples R China. [Dong, X.; Eun, L.; Grebenyuk, O. G.; Kiryluk, J.; Kisel, I.; Klein, S. R.; Kulakov, I.; Masui, H.; Matis, H. S.; Naglis, M.; Odyniec, G.; Olson, D.; Porter, J.; Poskanzer, A. M.; Powell, C. B.; Qiu, H.; Ritter, H. G.; Sakrejda, I.; Salur, S.; Schmah, A. M.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Wieman, H.; Xu, N.; Zyzak, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Leight, W.; Redwine, R.; Seele, J.; Steadman, S. G.; van Nieuwenhuizen, G.] MIT, Cambridge, MA 02139 USA. [Schmitz, N.; Seyboth, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Novak, J.; Tarnowsky, T.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA. [Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia. [Jena, C.; Mohanty, B.] Natl Inst Sci & Educ & Res, Bhubaneswar 751005, Orissa, India. [Anson, C. D.; Gangadharan, D. R.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA. [Bueltmann, S.; Koralt, I.; Plyku, D.] Old Dominion Univ, Norfolk, VA 23529 USA. [Pawlik, B.; Turnau, J.] Inst Nucl Phys PAN, Krakow, Poland. [Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.; Sharma, B.] Panjab Univ, Chandigarh 160014, India. [Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA. [Nogach, L. V.] Inst High Energy Phys, Protvino, Russia. [Hirsch, A.; Kikola, D. P.; Konzer, J.; Li, X.; Mustafa, M. K.; Scharenberg, R. P.; Srivastava, B.; Stringfellow, B.; Wang, F.; Wang, Q.; Xie, W.; Yi, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Oh, K.; Yoo, I. -K.] Pusan Natl Univ, Pusan 609735, South Korea. [Raniwala, R.; Raniwala, S.; Solanki, D.] Univ Rajasthan, Jaipur 302004, Rajasthan, India. [Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA. [Lima, L. M.; Munhoz, M. G.; Oliveira, R. A. N.; deSouza, U. G.; Suaide, A. A. P.; Szanto de Toledo, A.] Univ Sao Paulo, Sao Paulo, Brazil. [Chen, H. F.; Cui, X.; Li, C.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Deng, J.; Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China. [Cai, X. Z.; Chen, J. H.; Han, L. -X.; Li, W.; Ma, G. L.; Ma, Y. G.; Shou, Q. Y.; Tian, J.; Xue, L.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. [Borowski, W.; Kabana, S.] SUBATECH, Nantes, France. [Li, X.; Surrow, B.] Temple Univ, Philadelphia, PA 19122 USA. [Cervantes, M. C.; Chang, Z.; Codrington, M. J. M.; Djawotho, P.; Drachenberg, J. L.; Gagliardi, C. A.; Hamed, A.; Huo, L.; Mioduszewski, S.; Mohammed, Y.; Mondal, M. M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA. [Leyva, A. Davila; Hoffmann, G. W.; Li, L.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA. [Bellwied, R.; De Silva, L. C.; Timmins, A. R.] Univ Houston, Houston, TX 77204 USA. [Cheng, J.; Kang, K.; Li, Y.; Wang, Y.; Xiao, Z.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China. [Witt, R.] USN Acad, Annapolis, MD 21402 USA. [Drachenberg, J. L.; Gibson, A.; Grosnick, D.; Koetke, D. D.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA. [Ahammed, Z.; Banerjee, A.; Chattopadhdyay, S.; Nasim, Md; Nayak, T. K.; Pal, S. K.; Sahoo, N. R.; Singaraju, R. N.; Tribedy, P.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India. [Kisiel, A.; Ostrowski, P.; Pawlak, T.; Peryt, W.; Pluta, J.; Sandacz, A.; Trzeciak, B. A.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland. [Bichsel, H.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA. [Elnimr, M.; LaPointe, S.; Pruneau, C.; Putschke, J.; Sharma, M.; Tarini, L. H.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA. [Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Horvat, S.; Majka, R.; Ohlson, A.; Riley, C. K.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA. [Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia. RP Tang, Z (reprint author), Univ Sci & Technol China, Hefei 230026, Peoples R China. EM zbtang@ustc.edu.cn RI Alekseev, Igor/J-8070-2014; Voloshin, Sergei/I-4122-2013; Sumbera, Michal/O-7497-2014; Pandit, Yadav/I-2170-2013; Lednicky, Richard/K-4164-2013; Takahashi, Jun/B-2946-2012; Tang, Zebo/A-9939-2014; Fazio, Salvatore /G-5156-2010; Yang, Yanyun/B-9485-2014; Dong, Xin/G-1799-2014; Rusnak, Jan/G-8462-2014; Bielcikova, Jana/G-9342-2014; Strikhanov, Mikhail/P-7393-2014; Xu, Wenqin/H-7553-2014; XIAO, Zhigang/C-3788-2015; Aparecido Negrao de Oliveira, Renato/G-9133-2015; Bruna, Elena/C-4939-2014; Chaloupka, Petr/E-5965-2012; Huang, Bingchu/H-6343-2015; Derradi de Souza, Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; Xin, Kefeng/O-9195-2016; Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017; Ma, Yu-Gang/M-8122-2013 OI Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323; Pandit, Yadav/0000-0003-2809-7943; Takahashi, Jun/0000-0002-4091-1779; Tang, Zebo/0000-0002-4247-0081; Yang, Yanyun/0000-0002-5982-1706; Dong, Xin/0000-0001-9083-5906; Strikhanov, Mikhail/0000-0003-2586-0405; Xu, Wenqin/0000-0002-5976-4991; Bruna, Elena/0000-0001-5427-1461; Huang, Bingchu/0000-0002-3253-3210; Derradi de Souza, Rafael/0000-0002-2084-7001; Suaide, Alexandre/0000-0003-2847-6556; Xin, Kefeng/0000-0003-4853-9219; Ma, Yu-Gang/0000-0002-0233-9900 FU RHIC Operations Group and RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium; Offices of NP and HEP within the US DOE Office of Science; US NSF; Sloan Foundation; DFG cluster of excellence 'Origin and Structure of the Universe' of Germany; CNRS/IN2P3; FAPESP CNPq of Brazil; Ministry of Ed. and Sci. of the Russian Federation; NNSFC; CAS; MoST; MoE of China; GA; MSMT of the Czech Republic; FOM; NWO of the Netherlands; DAE; DST; CSIR of India; Polish Ministry of Sci. and Higher Ed.; Korea National Research Foundation; Ministry of Sci., Ed. and Sports of the Rep. of Croatia; RosAtom of Russia FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Offices of NP and HEP within the US DOE Office of Science, the US NSF, the Sloan Foundation, the DFG cluster of excellence 'Origin and Structure of the Universe' of Germany, CNRS/IN2P3, FAPESP CNPq of Brazil, Ministry of Ed. and Sci. of the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST, and CSIR of India, Polish Ministry of Sci. and Higher Ed., Korea National Research Foundation, Ministry of Sci., Ed. and Sports of the Rep. of Croatia, and RosAtom of Russia. NR 55 TC 43 Z9 43 U1 1 U2 57 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD MAY 13 PY 2013 VL 722 IS 1-3 BP 55 EP 62 DI 10.1016/j.physletb.2013.04.010 PG 8 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 141RX UT WOS:000318745300005 ER PT J AU Hen, O Hakobyan, H Shneor, R Piasetzky, E Weinstein, LB Brooks, WK Beck, SMT Gilad, S Korover, I Beck, A Adhikari, KP Aghasyan, M Amaryan, MJ Pereira, SA Arrington, JR Baghdasaryan, H Ball, J Battaglieri, M Batourine, V Bedlinskiy, I Biselli, AS Bono, J Boiarinov, S Briscoe, WJ Burkert, VD Carman, DS Celentano, A Chandavar, S Cole, PL Contalbrigo, M Crede, V D'Angelo, A Dashyan, N De Vita, R De Sanctis, E Deur, A Djalali, C Dodge, GE Doughty, D Dupre, R Egiyan, H El Alaoui, A El Fassi, L Eugenio, P Fedotov, G Fegan, S Fleming, JA Gabrielyan, MY Gevorgyan, N Gilfoyle, GP Giovanetti, KL Girod, FX Goetz, JT Gohn, W Golovatch, E Gothe, RW Griffioen, KA Guo, L Hafidi, K Harrison, N Heddle, D Hicks, K Holtrop, M Hyde, CE Ilieva, Y Ireland, DG Ishkhanov, BS Isupov, EL Jo, HS Joo, K Keller, D Khandaker, M Khetarpal, P Kim, A Klein, FJ Koirala, S Kubarovsky, A Kubarovsky, V Kuhn, SE Livingston, K Lu, HY MacGregor, IJD Martinez, D Mayer, M McKinnon, B Mineeva, T Mokeev, V Montgomery, RA Moutarde, H Munevar, E Camacho, CM Mustapha, B Nadel-Turonski, P Nasseripour, R Niccolai, S Niculescu, G Niculescu, I Osipenko, M Ostrovidov, AI Pappalardo, LL Paremuzyan, R Park, K Park, S Pasyuk, E Phelps, E Phillips, JJ Pisano, S Pivnyuk, N Pogorelko, O Pozdniakov, S Price, JW Procureur, S Protopopescu, D Puckett, AJR Raue, BA Rimal, D Ripani, M Ritchie, BG Rosner, G Rossi, P Sabatie, F Saini, MS Schott, D Schumacher, RA Seraydaryan, H Sharabian, YG Smith, GD Sober, DI Sokhan, D Stepanyan, SS Stepanyan, S Strauch, S Taiuti, M Tang, W Taylor, CE Tian, Y Tkachenko, S Ungaro, M Vernarsky, B Vlassov, A Voskanyan, H Voutier, E Walford, NK Watts, DP Wood, MH Zachariou, N Zana, L Zhang, J Zheng, X Zonta, I AF Hen, O. Hakobyan, H. Shneor, R. Piasetzky, E. Weinstein, L. B. Brooks, W. K. Beck, S. May-Tal Gilad, S. Korover, I. Beck, A. Adhikari, K. P. Aghasyan, M. Amaryan, M. J. Pereira, S. Anefalos Arrington, J. R. Baghdasaryan, H. Ball, J. Battaglieri, M. Batourine, V. Bedlinskiy, I. Biselli, A. S. Bono, J. Boiarinov, S. Briscoe, W. J. Burkert, V. D. Carman, D. S. Celentano, A. Chandavar, S. Cole, P. L. Contalbrigo, M. Crede, V. D'Angelo, A. Dashyan, N. De Vita, R. De Sanctis, E. Deur, A. Djalali, C. Dodge, G. E. Doughty, D. Dupre, R. Egiyan, H. El Alaoui, A. El Fassi, L. Eugenio, P. Fedotov, G. Fegan, S. Fleming, J. A. Gabrielyan, M. Y. Gevorgyan, N. Gilfoyle, G. P. Giovanetti, K. L. Girod, F. X. Goetz, J. T. Gohn, W. Golovatch, E. Gothe, R. W. Griffioen, K. A. Guo, L. Hafidi, K. Harrison, N. Heddle, D. Hicks, K. Holtrop, M. Hyde, C. E. Ilieva, Y. Ireland, D. G. Ishkhanov, B. S. Isupov, E. L. Jo, H. S. Joo, K. Keller, D. Khandaker, M. Khetarpal, P. Kim, A. Klein, F. J. Koirala, S. Kubarovsky, A. Kubarovsky, V. Kuhn, S. E. Livingston, K. Lu, H. Y. MacGregor, I. J. D. Martinez, D. Mayer, M. McKinnon, B. Mineeva, T. Mokeev, V. Montgomery, R. A. Moutarde, H. Munevar, E. Camacho, C. Munoz Mustapha, B. Nadel-Turonski, P. Nasseripour, R. Niccolai, S. Niculescu, G. Niculescu, I. Osipenko, M. Ostrovidov, A. I. Pappalardo, L. L. Paremuzyan, R. Park, K. Park, S. Pasyuk, E. Phelps, E. Phillips, J. J. Pisano, S. Pivnyuk, N. Pogorelko, O. Pozdniakov, S. Price, J. W. Procureur, S. Protopopescu, D. Puckett, A. J. R. Raue, B. A. Rimal, D. Ripani, M. Ritchie, B. G. Rosner, G. Rossi, P. Sabatie, F. Saini, M. S. Schott, D. Schumacher, R. A. Seraydaryan, H. Sharabian, Y. G. Smith, G. D. Sober, D. I. Sokhan, D. Stepanyan, S. S. Stepanyan, S. Strauch, S. Taiuti, M. Tang, W. Taylor, C. E. Tian, Ye Tkachenko, S. Ungaro, M. Vernarsky, B. Vlassov, A. Voskanyan, H. Voutier, E. Walford, N. K. Watts, D. P. Wood, M. H. Zachariou, N. Zana, L. Zhang, J. Zheng, X. Zonta, I. CA CLAS Collaboration TI Measurement of transparency ratios for protons from short-range correlated pairs SO PHYSICS LETTERS B LA English DT Article ID NUCLEAR TRANSPARENCY; HIGH Q(2); PROPAGATION; SCATTERING AB Nuclear transparency, T-p(A), is a measure of the average probability for a struck proton to escape the nucleus without significant re-interaction. Previously, nuclear transparencies were extracted for quasi-elastic A(e, e' p) knockout of protons with momentum below the Fermi momentum, where the spectral functions are well known. In this Letter we extract a novel observable, the transparency ratio, T-p(A)/T-p(C-12), for knockout of high-missing-momentum protons from the breakup of short-range correlated pairs (2N-SRC) in Al, Fe and Pb nuclei relative to C. The ratios were measured at momentum transfer Q(2) >= 1.5 (GeV/c)(2) and x(B) >= 1.2 where the reaction is expected to be dominated by electron scattering from 2N-SRC. The transparency ratios of the knocked-out protons coming from 2N-SRC breakup are 20-30% lower than those of previous results for low missing momentum. They agree with Glauber calculations and agree with renormalization of the previously published transparencies as proposed by recent theoretical investigations. The new transparencies scale as A(-1/3), which is consistent with dominance of scattering from nucleons at the nuclear surface. (C) 2013 Elsevier B.V. All rights reserved. C1 [Hen, O.; Shneor, R.; Piasetzky, E.; Beck, S. May-Tal; Korover, I.; Beck, A.] Tel Aviv Univ, IL-69978 Tel Aviv, Israel. [Hakobyan, H.; Brooks, W. K.] Univ Tecn Federico Santa Maria, Valparaiso, Chile. [Weinstein, L. B.; Adhikari, K. P.; Amaryan, M. J.; Baghdasaryan, H.; Dodge, G. E.; Hyde, C. E.; Koirala, S.; Kuhn, S. E.; Mayer, M.; Seraydaryan, H.] Old Dominion Univ, Norfolk, VA 23529 USA. [Gilad, S.] MIT, Cambridge, MA 02139 USA. [Arrington, J. R.; El Alaoui, A.; El Fassi, L.; Hafidi, K.; Mustapha, B.; Zheng, X.] Argonne Natl Lab, Argonne, IL 60439 USA. [Pasyuk, E.; Ritchie, B. G.] Arizona State Univ, Tempe, AZ 85287 USA. [Price, J. W.] Calif State Univ Dominguez Hills, Carson, CA 90747 USA. [Wood, M. H.] Canisius Coll, Buffalo, NY 14208 USA. [Biselli, A. S.; Lu, H. Y.; Schumacher, R. A.; Vernarsky, B.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cole, P. L.; Klein, F. J.; Sober, D. I.; Walford, N. K.] Catholic Univ Amer, Washington, DC 20064 USA. [Ball, J.; Moutarde, H.; Procureur, S.; Sabatie, F.] CEA, Ctr Saclay, Irfu Serv Phys Nucl, F-91191 Gif Sur Yvette, France. [Doughty, D.; Heddle, D.] Christopher Newport Univ, Newport News, VA 23606 USA. [Gohn, W.; Harrison, N.; Joo, K.; Mineeva, T.] Univ Connecticut, Storrs, CT 06269 USA. [Fleming, J. A.; Watts, D. P.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland. [Biselli, A. S.] Fairfield Univ, Fairfield, CT 06824 USA. [Bono, J.; Gabrielyan, M. Y.; Guo, L.; Khetarpal, P.; Nasseripour, R.; Raue, B. A.; Rimal, D.] Florida Int Univ, Miami, FL 33199 USA. [Crede, V.; Eugenio, P.; Ostrovidov, A. I.; Park, S.; Saini, M. S.] Florida State Univ, Tallahassee, FL 32306 USA. [Taiuti, M.] Univ Genoa, I-16146 Genoa, Italy. [Briscoe, W. J.; Ilieva, Y.; Schott, D.; Strauch, S.] George Washington Univ, Washington, DC 20052 USA. [Cole, P. L.; Martinez, D.; Taylor, C. E.] Idaho State Univ, Pocatello, ID 83209 USA. [Contalbrigo, M.; Pappalardo, L. L.] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy. [Aghasyan, M.; Pereira, S. Anefalos; De Sanctis, E.; Pisano, S.; Rossi, P.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Battaglieri, M.; Celentano, A.; De Vita, R.; Osipenko, M.; Ripani, M.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [D'Angelo, A.; Zonta, I.] Ist Nazl Fis Nucl, Sez Roma Vergata, I-00133 Rome, Italy. [Dupre, R.; Jo, H. S.; Camacho, C. Munoz; Niccolai, S.] Inst Phys Nucl, F-91406 Orsay, France. [Bedlinskiy, I.; Pivnyuk, N.; Pogorelko, O.; Pozdniakov, S.; Vlassov, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Giovanetti, K. L.; Nasseripour, R.; Niculescu, G.; Niculescu, I.] James Madison Univ, Harrisonburg, VA 22807 USA. [Batourine, V.; Kim, A.; Park, K.; Stepanyan, S. S.] Kyungpook Natl Univ, Taegu 702701, South Korea. [Voutier, E.] Univ Grenoble 1, CNRS IN2P3, LPSC, INPG, Grenoble, France. [Holtrop, M.; Zana, L.] Univ New Hampshire, Durham, NH 03824 USA. [Khandaker, M.] Norfolk State Univ, Norfolk, VA 23504 USA. [Chandavar, S.; Goetz, J. T.; Hicks, K.; Tang, W.] Ohio Univ, Athens, OH 45701 USA. [Kubarovsky, A.; Kubarovsky, V.; Ungaro, M.] Rensselaer Polytech Inst, Troy, NY 12180 USA. [Gilfoyle, G. P.] Univ Richmond, Richmond, VA 23173 USA. [D'Angelo, A.] Univ Roma Tor Vergata, I-00133 Rome, Italy. [Fedotov, G.; Golovatch, E.; Ishkhanov, B. S.; Isupov, E. L.; Kubarovsky, A.; Mokeev, V.] Skobeltsyn Nucl Phys Inst, Moscow 119899, Russia. [Ishkhanov, B. S.] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia. [Djalali, C.; Fedotov, G.; Gothe, R. W.; Ilieva, Y.; Phelps, E.; Strauch, S.; Tian, Ye; Wood, M. H.; Zachariou, N.] Univ S Carolina, Columbia, SC 29208 USA. [Brooks, W. K.; Batourine, V.; Boiarinov, S.; Burkert, V. D.; Carman, D. S.; Cole, P. L.; Deur, A.; Doughty, D.; Egiyan, H.; Girod, F. X.; Guo, L.; Heddle, D.; Kubarovsky, V.; Mokeev, V.; Munevar, E.; Nadel-Turonski, P.; Park, K.; Pasyuk, E.; Puckett, A. J. R.; Raue, B. A.; Sharabian, Y. G.; Stepanyan, S.; Ungaro, M.; Zhang, J.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Fegan, S.; Ireland, D. G.; Livingston, K.; MacGregor, I. J. D.; McKinnon, B.; Montgomery, R. A.; Phillips, J. J.; Protopopescu, D.; Rosner, G.; Smith, G. D.; Sokhan, D.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland. [Baghdasaryan, H.; Keller, D.; Tkachenko, S.] Univ Virginia, Charlottesville, VA 22901 USA. [Griffioen, K. A.] Coll William & Mary, Williamsburg, VA 23187 USA. [Hakobyan, H.; Dashyan, N.; Gevorgyan, N.; Paremuzyan, R.; Voskanyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia. RP Hen, O (reprint author), Tel Aviv Univ, IL-69978 Tel Aviv, Israel. EM or.chen@mail.huji.ac.il RI MacGregor, Ian/D-4072-2011; Brooks, William/C-8636-2013; Arrington, John/D-1116-2012; Schumacher, Reinhard/K-6455-2013; Ishkhanov, Boris/E-1431-2012; D'Angelo, Annalisa/A-2439-2012; Lu, Haiyun/B-4083-2012; Ireland, David/E-8618-2010; El Alaoui, Ahmed/B-4638-2015; Sabatie, Franck/K-9066-2015; Zhang, Jixie/A-1461-2016; Celentano, Andrea/J-6190-2012 OI Zonta, Irene/0000-0003-4952-2160; Hyde, Charles/0000-0001-7282-8120; Bono, Jason/0000-0002-3018-714X; Brooks, William/0000-0001-6161-3570; Arrington, John/0000-0002-0702-1328; Schumacher, Reinhard/0000-0002-3860-1827; D'Angelo, Annalisa/0000-0003-3050-4907; Ireland, David/0000-0001-7713-7011; Sabatie, Franck/0000-0001-7031-3975; Celentano, Andrea/0000-0002-7104-2983 FU US Department of Energy; National Science Foundation; Israel Science Foundation; US-Israeli Bi-National Science Foundation; Chilean Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) [FB0821, ACT-119, 1120953, 11121448, 791100017]; French Centre National de la Recherche Scientifique and Commissariat a l'Energie Atomique; French-American Cultural Exchange (FACE); Italian Istituto Nazionale di Fisica Nucleare; National Research Foundation of Korea; United Kingdom's Science and Technology Facilities Council (STFC); United States Department of Energy [DE-AC05-06OR23177] FX We acknowledge the efforts of the staff of the Accelerator and Physics Divisions at Jefferson Lab that made this experiment possible. We are also grateful for many fruitful discussions with LL Frankfurt, M. Strikman, J. Ryckebusch, W. Cosyn, M. Sargsyan, and C. Ciofi degli Atti on the formalism and implications of the results. This work was supported by the US Department of Energy and National Science Foundation, the Israel Science Foundation, the US-Israeli Bi-National Science Foundation, the Chilean Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) grants FB0821, ACT-119, 1120953, 11121448, and 791100017, the French Centre National de la Recherche Scientifique and Commissariat a l'Energie Atomique, the French-American Cultural Exchange (FACE), the Italian Istituto Nazionale di Fisica Nucleare, the National Research Foundation of Korea, and the United Kingdom's Science and Technology Facilities Council (STFC). The Jefferson Science Associates (JSA) operates the Thomas Jefferson National Accelerator Facility for the United States Department of Energy under contract DE-AC05-06OR23177. NR 28 TC 6 Z9 6 U1 0 U2 22 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD MAY 13 PY 2013 VL 722 IS 1-3 BP 63 EP 68 DI 10.1016/j.physletb.2013.04.011 PG 6 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 141RX UT WOS:000318745300006 ER PT J AU Meyers, D Mukherjee, S Cheng, JG Middey, S Zhou, JS Goodenough, JB Gray, BA Freeland, JW Saha-Dasgupta, T Chakhalian, J AF Meyers, D. Mukherjee, Swarnakamal Cheng, J. -G. Middey, S. Zhou, J. -S. Goodenough, J. B. Gray, B. A. Freeland, J. W. Saha-Dasgupta, T. Chakhalian, J. TI Zhang-Rice physics and anomalous copper states in A-site ordered perovskites SO SCIENTIFIC REPORTS LA English DT Article ID CHARGE; 1ST-PRINCIPLES; INTERFACE; MAGNETISM; OXIDES AB In low dimensional cuprates several interesting phenomena, including high T-c superconductivity, are deeply connected to electron correlations on Cu and the presence of the Zhang-Rice (ZR) singlet state. Here, we report on direct spectroscopic observation of the ZR state responsible for the low-energy physical properties in two isostructural A-site ordered cuprate perovskites, CaCu3Co4O12 and CaCu3Cr4O12 as revealed by resonant soft x-ray absorption spectroscopy on the Cu L-3,L-2- and O K-edges. These measurements reveal the signature of Cu in the high-energy 3+ (3d(8)), the typical 2+ (3d(9)), as well as features of the ZR singlet state (i.e., 3d(9)(L) under bar, (L) under bar denotes an oxygen hole). First principles GGA + U calculations affirm that the B-site cation controls the degree of Cu-O hybridization and, thus, the Cu valency. These findings introduce another avenue for the study and manipulation of cuprates, bypassing the complexities inherent to conventional chemical doping (i.e. disorder) that hinder the relevant physics. C1 [Meyers, D.; Middey, S.; Gray, B. A.; Chakhalian, J.] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA. [Mukherjee, Swarnakamal; Saha-Dasgupta, T.] SN Bose Natl Ctr Basic Sci, Dept Condensed Matter Phys & Mat Sci, Kolkata 700098, India. [Cheng, J. -G.; Zhou, J. -S.; Goodenough, J. B.] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA. [Cheng, J. -G.] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan. [Cheng, J. -G.] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. [Cheng, J. -G.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. [Freeland, J. W.] Argonne Natl Lab, Argonne, IL 60439 USA. [Chakhalian, J.] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore. RP Meyers, D (reprint author), Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA. EM dmeyers@uark.edu; t.sahadasgupta@gmail.com RI Cheng, Jinguang/A-8342-2012; Chakhalian, Jak/F-2274-2015; Middey, Srimanta/D-9580-2013; OI Middey, Srimanta/0000-0001-5893-0946; Goodenough, John Bannister/0000-0001-9350-3034 FU DOD-ARO Grant [0402-17291]; NSF Grant [DMR-1122603]; CSIR, India; DST, India; U.S. Department of Energy, Office of Science [DEAC02-06CH11357]; Japan Society for the Promotion of Science [12F02023]; Chinese Academy of Sciences FX JC is supported by DOD-ARO Grant No. 0402-17291. JSZ and JBG is supported by NSF Grant. No. DMR-1122603. TS-D would also like to thank, CSIR and DST, India for funding. Work at the Advanced Photon Source, Argonne is supported by the U.S. Department of Energy, Office of Science under Grant No. DEAC02-06CH11357. Thanks to Dr. Bogdan Dabrowski for the SrCoO2.9 (similar to 4+) sample. JGC acknowledges the support from the Japan Society for the Promotion of Science (Grant No. 12F02023) and the Chinese Academy of Sciences. NR 43 TC 11 Z9 11 U1 1 U2 64 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2045-2322 J9 SCI REP-UK JI Sci Rep PD MAY 13 PY 2013 VL 3 AR 1834 DI 10.1038/srep01834 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 141XA UT WOS:000318758600005 PM 23666066 ER PT J AU Nageswara-Rao, M Soneji, JR Kwit, C Stewart, CN AF Nageswara-Rao, Madhugiri Soneji, Jaya R. Kwit, Charles Stewart, C. Neal, Jr. TI Advances in biotechnology and genomics of switchgrass SO BIOTECHNOLOGY FOR BIOFUELS LA English DT Review DE Biofuels; Expressed sequence tags; Genetic engineering; Genome sequencing; Lignin biosynthesis; microRNAs; Molecular markers ID PANICUM-VIRGATUM-L.; EXPRESSED SEQUENCE TAGS; TRANSIENT GENE-EXPRESSION; ORYZA-SATIVA L.; PLANT-REGENERATION; BIOFUEL PRODUCTION; BIOMASS PRODUCTION; UNITED-STATES; LIGNOCELLULOSIC BIOMASS; SOMATIC EMBRYOGENESIS AB Switchgrass (Panicum virgatum L.) is a C-4 perennial warm season grass indigenous to the North American tallgrass prairie. A number of its natural and agronomic traits, including adaptation to a wide geographical distribution, low nutrient requirements and production costs, high water use efficiency, high biomass potential, ease of harvesting, and potential for carbon storage, make it an attractive dedicated biomass crop for biofuel production. We believe that genetic improvements using biotechnology will be important to realize the potential of the biomass and biofuel-related uses of switchgrass. Tissue culture techniques aimed at rapid propagation of switchgrass and genetic transformation protocols have been developed. Rapid progress in genome sequencing and bioinformatics has provided efficient strategies to identify, tag, clone and manipulate many economically-important genes, including those related to higher biomass, saccharification efficiency, and lignin biosynthesis. Application of the best genetic tools should render improved switchgrass that will be more economically and environmentally sustainable as a lignocellulosic bioenergy feedstock. C1 [Nageswara-Rao, Madhugiri; Kwit, Charles; Stewart, C. Neal, Jr.] Univ Tennessee, Dept Plant Sci, Knoxville, TN 37996 USA. [Nageswara-Rao, Madhugiri; Soneji, Jaya R.] Polk State Coll, Dept Biol Sci, Winter Haven, FL 33881 USA. [Stewart, C. Neal, Jr.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN USA. RP Nageswara-Rao, M (reprint author), Univ Tennessee, Dept Plant Sci, 2431 Joe Johnson Dr, Knoxville, TN 37996 USA. EM mnrao@utk.edu; nealstewart@utk.edu FU USDA NIFA Biotechnology Risk Assessment Grants (BRAG) [2010-39211-21699]; BioEnergy Science Center; Office of Biological and Environmental Research in the US Department of Energy Office of Science FX The authors would like to thank Mr. Wegi A. Wuddineh for providing photographs for Figure 3. This project was made possible through funding from USDA NIFA Biotechnology Risk Assessment Grants (BRAG) Program grant # 2010-39211-21699. C. Neal Stewart Jr. also received support from the BioEnergy Science Center, a Bioenergy Research Center supported by the Office of Biological and Environmental Research in the US Department of Energy Office of Science. NR 144 TC 8 Z9 9 U1 7 U2 60 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1754-6834 J9 BIOTECHNOL BIOFUELS JI Biotechnol. Biofuels PD MAY 12 PY 2013 VL 6 AR 77 DI 10.1186/1754-6834-6-77 PG 15 WC Biotechnology & Applied Microbiology; Energy & Fuels SC Biotechnology & Applied Microbiology; Energy & Fuels GA 149YR UT WOS:000319357800001 PM 23663491 ER PT J AU Yao, M Gao, X Zeng, WP Wang, XD Xu, HX Phiilpot, SR AF Yao Man Gao Xiao Zeng Weipeng Wang Xudong Xu Haixuan Phiilpot, Simon R. TI MOLECULAR DYNAMICS STUDY ON TEMPERATURE EFFECT AND RADIATION-DEDUCED DEFECT FORMATION IN hcp-Ti SO ACTA METALLURGICA SINICA LA Chinese DT Article DE hcp-Ti; displacement cascade; molecular dynamics; radiation-induced defect; temperature ID DISPLACEMENT CASCADES; GRAIN-BOUNDARIES; DAMAGE; SIMULATION; POTENTIALS; TITANIUM; METALS; IRON AB The radiation-induced defects formed in nuclear structure materials in the initial stage of displacement cascade and the subsequent changes in their microstructures and mechanical properties are the primary causes of their failure. Unfortunately the formation and aggregation of point defects are hard to be found only by probed experiments. In this work, the displacement cascade occurring in hcp-Ti system has been investigated by using molecular dynamics. After building the atomic model, by setting different PKA (primary knock-on atom) directions and PKA energies respectively, the evolution of simulated radiation-induced point defects in displacement cascade was studied and its two major characteristics, displacement and thermal spikes, have been given. The transient temperature distribution, local melting region variation in the damage zone caused by radiation as well as the peak and surviving numbers of Frenkel pairs were quantitatively estimated. For hcp-Ti, in the PKA energy region of 0.5-9.0 keV, the effect of PKA velocity direction on survival defect number is very small. Both the defect number at stable state and its maximum value have approximately linear relationship with the PKA energy. In the radiation evolution stage, the defects about 95 percent have recovered, the defect and temperature distribution caused by displacement cascade are asymmetric. The simulation method used in this paper would provide an effective way for the study on the evolution and micromechanism of radiation-induced point defects in displacement cascade. C1 [Yao Man; Gao Xiao; Zeng Weipeng; Wang Xudong] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China. [Xu Haixuan] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Phiilpot, Simon R.] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA. RP Yao, M (reprint author), Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China. EM yaoman@dlut.edu.cn RI Xu, Haixuan/C-9841-2009; OI Phillpot, Simon/0000-0002-7774-6535 NR 25 TC 1 Z9 2 U1 0 U2 11 PU SCIENCE PRESS PI BEIJING PA 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA SN 0412-1961 J9 ACTA METALL SIN JI Acta Metall. Sin. PD MAY 11 PY 2013 VL 49 IS 5 BP 530 EP 536 DI 10.3724/SP.J.1037.2013.00007 PG 7 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA 151XM UT WOS:000319493700003 ER PT J AU Thomasset, M Idir, M Polack, F Bray, M Servant, JJ AF Thomasset, Muriel Idir, Mourad Polack, Francois Bray, Michael Servant, Jean-Jacques TI A new phase-shift microscope designed for high accuracy stitching interferometry SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Stitching interferometry; Phase shift microscopy; Michelson interferometer; Telecentric objective; Mirror surface topography AB Characterizing nanofocusing X-ray mirrors for the soon coming nano-imaging beamlines of synchrotron light sources motivates the development of new instruments with improved performances. The sensitivity and accuracy goal is now fixed well under the nm level and, at the same time, the spatial frequency range of the measurement should be pushed toward 50 mm(-1). SOLEIL synchrotron facility has therefore undertaken to equip with an interferential microscope suitable for stitching interferometry at this performance level. In order to keep control on the whole metrology chain it was decided to build a custom instrument in partnership with two small optics companies EOTECH and MBO. The new instrument is a Michelson micro-interferometer equipped with a custom-designed telecentric objective. It achieves the large depth of focus suitable for performing reliable calibrations and measurements. The concept has been validated with a predevelopment set-up, delivered in July 2010, which showed a static repeatability below 1 nm PV despite a non-thermally stabilized environment. The final instrument was delivered early this year and was installed inside SOLEIL's controlled environment facility, where thorough characterization tests are under way. Latest test results and first stitching measurements are presented. (c) 2012 Elsevier B.V. All rights reserved. C1 [Thomasset, Muriel; Polack, Francois] SOLEIL Synchrotron, lOrme Merisiers, F-91192 Gif Sur Yvette, France. [Idir, Mourad] Brookhaven Natl Lab, NSLS 2, Upton, NY 11973 USA. [Bray, Michael] MBO Metrol, F-91320 Wissous, France. [Servant, Jean-Jacques] EOTECH, F-91460 Marcoussis, France. RP Thomasset, M (reprint author), SOLEIL Synchrotron, lOrme Merisiers, F-91192 Gif Sur Yvette, France. EM Muriel.thomasset@synchrotron-soleil.fr FU Region Ile de France under a SESAME Grant [F-08-1097/R]; Agence Nationale de la Recherche, under ANR Grant [09-NANO-008-AXOC] FX This work has been benefited by the funding from Region Ile de France under a SESAME 2007 Grant, convention # F-08-1097/R and from Agence Nationale de la Recherche, under ANR Grant 09-NANO-008-AXOC. NR 11 TC 1 Z9 2 U1 2 U2 14 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 7 EP 12 DI 10.1016/j.nima.2012.10.123 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600003 ER PT J AU Idir, M Kaznatcheev, K Qian, SN Conley, R AF Idir, Mourad Kaznatcheev, Konstantine Qian, Shinan Conley, Ray TI Current status of the NSLS-II optical metrology laboratory SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Optical metrology; X-ray optics synchrotron radiation; beamline ID X-RAY MIRRORS; INTERFEROMETRY; DEFLECTOMETRY; RESOLUTION; ACCURACY; SYSTEM; NM AB During the last decade, we have seen an ultra-fast progress in X-ray optics performances. This enhancement is directly linked to the development of the necessary tools to control these optical components. These metrology tools are necessary for the fabrication (to guide some polishing deterministic process) and also for the ultimate characterization used to validate surface parameters (often inside their own mechanical support) prior to installation in a beamline. It is now necessary to characterize optical surface figure, slope errors and roughness on meter-long optics over spatial frequencies as short as 0.1 mm and with slope errors reaching less than 100 nrad rms or surface figure errors close to 1 nm in order to not spoiled and preserve the high brightness made available by third and fourth generation synchrotron/FEL sources like NSLSII or LCLS. For this purpose, the new NSLS-II Optical Metrology Laboratory (NSLSII-OML) includes commercial instruments for measuring long spatial frequency figure errors, mid spatial frequencies and high frequency roughness and had started some R&D activities. The NSLSII-OML foresee some efforts on the development of new instruments for slope errors measurements with the construction of a long trace profiler/NOM that will be able to reach 50 nrad slope error accuracy. Effort towards the construction of new instruments with stitching capabilities using interferometer and Shack Hartmann and software configurable optical test (SCOTS) stations are also under consideration to be able to perform 2D mapping of the optical surfaces in order to feed a deterministic polishing process based on ion beam figuring (under development in collaboration with the NSLS II Optical Fabrication Group). In the same time, it also becomes clear that low emittance and high stability of NSLS-II X-ray beam combined with extended possible beamline offered by large experimental hall may and should be used for the metrology. Approved plan includes the construction of specialized beamline for at-wavelength metrology, radiometry, crystal optic characterization and instrumentation development. This paper provides a brief description of the instruments currently available in the laboratory and gives an overview of the very active R&D efforts within the NSLSII-OML. (c) 2012 Elsevier B.V. All rights reserved. C1 [Idir, Mourad; Kaznatcheev, Konstantine; Qian, Shinan; Conley, Ray] Brookhaven Natl Lab, Photon Sci Directorates, Upton, NY 11973 USA. [Qian, Shinan] Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. RP Idir, M (reprint author), Brookhaven Natl Lab, Photon Sci Directorates, Upton, NY 11973 USA. EM midir@bnl.gov FU US DOE [DE-AC02-98CH10886] FX Work is supported by US DOE, Contract No. DE-AC02-98CH10886. NR 34 TC 9 Z9 9 U1 0 U2 16 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 17 EP 23 DI 10.1016/j.nima.2012.10.122 PG 7 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600005 ER PT J AU Assoufid, L Brown, N Crews, D Sullivan, J Erdmann, M Qian, J Jemian, P Yashchuk, VV Takacs, PZ Artemiev, NA Merthe, DJ McKinney, WR Siewert, F Zeschke, T AF Assoufid, Lahsen Brown, Nathan Crews, Dan Sullivan, Joseph Erdmann, Mark Qian, Jun Jemian, Pete Yashchuk, Valeriy V. Takacs, Peter Z. Artemiev, Nikolay A. Merthe, Daniel J. McKinney, Wayne R. Siewert, Frank Zeschke, Thomas TI Development of a high-performance gantry system for a new generation of optical slope measuring profilers SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Optical slope; Measuring system; Long trace profiler; x-ray mirror; Synchrotron radiation; Nanoradian sensor; Autocolimator; NOM ID LONG TRACE PROFILER; ACCURACY; MIRRORS AB A new high-performance metrology gantry system has been developed within the scope of collaborative efforts of optics groups at the US Department of Energy synchrotron radiation facilities as well as the BESSY-II synchrotron at the Helmholtz Zentrum Berlin (Germany) and the participation of industrial vendors of x-ray optics and metrology instrumentation directed to create a new generation of optical slope measuring systems (OSMS) [1]. The slope measurement accuracy of the OSMS is expected to be < 50 nrad, which is strongly required for the current and future metrology of x-ray optics for the next generation of light sources. The fabricated system was installed and commissioned (December 2012) at the Advanced Photon Source (APS) at Argonne National Laboratory to replace the aging APS Long Trace Profiler (APS LTP-II). Preliminary tests were conducted (in January and May 2012) using the optical system configuration of the Manometer Optical Component Measuring Machine (NOM) developed at Helmholtz Zentrum Berlin (HZB)/BESSY-II. With a flat Si mirror that is 350 mm long and has 200 nrad rms nominal slope error over a useful length of 300 mm, the system provides a repeatability of about 53 nrad. This value corresponds to the design performance of 50 nrad rms accuracy for inspection of ultra-precise flat optics. (c) 2012 Elsevier B.V. All rights reserved. C1 [Assoufid, Lahsen; Sullivan, Joseph; Erdmann, Mark; Qian, Jun; Jemian, Pete] Argonne Natl Lab, Argonne, IL 60439 USA. [Brown, Nathan; Crews, Dan] ALIO Ind, Wheat Ridge, CO 80033 USA. [Yashchuk, Valeriy V.; Artemiev, Nikolay A.; Merthe, Daniel J.; McKinney, Wayne R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Takacs, Peter Z.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Siewert, Frank; Zeschke, Thomas] Helmholtz Zentrum Berlin, BESSY 2, Inst Nanometer Opt & Technol, D-12489 Berlin, Germany. RP Assoufid, L (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM assoufid@aps.anl.gov RI McKinney, Wayne/F-2027-2014 OI McKinney, Wayne/0000-0003-2586-3139 FU US Department of Energy, Office of Science [DE-AC-02-06CH11357]; U.S. Department of Energy [DE-AC02-05CH11231, DE-AC02-98CH10886] FX This work was supported by the US Department of Energy, Office of Science, under Contract no. DE-AC-02-06CH11357. The ALS is supported by the U.S. Department of Energy under Contract no DE-AC02-05CH11231. Brookhaven National Lab is supported by the U.S. Department of Energy under contract number DE-AC02-98CH10886. We thank Ralf Geckeler (PTB, Germany), Simon Alcock (Diamond Light Source, UK), and Josep Nicolas (ALBA, Spain) for their valuable input and useful discussions. NR 36 TC 15 Z9 15 U1 5 U2 20 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 31 EP 36 DI 10.1016/j.nima.2012.11.063 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600007 ER PT J AU Qian, J Sullivan, J Erdmann, M Khounsary, A Assoufid, L AF Qian, Jun Sullivan, Joe Erdmann, Mark Khounsary, Ali Assoufid, Lahsen TI Performance of the APS optical slope measuring system SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Autocollimator; Metrology; Slope error; Pentaprism; Optical slope measuring system; OSMS; LTP AB An optical slope measuring system (OSMS) was recently brought into operation at the Advanced Photon Source of the Argonne National Laboratory. This system is equipped with a precision autocollimator and a very accurate mirror-based pentaprism on a scanning stage and kept in an environment-controlled enclosure. This system has the capability to measure precision optics with sub-microradian rms slope errors as documented with a series of tests demonstrating accuracy, stability, reliability and repeatability. Measurements of a flat mirror with 0.2 mu rad rms slope error are presented which show that the variation of the slope profile measurements with the mirror setting at different locations along the scanning direction is only 60 nrad and the corresponding height error profile has 2 nm rms. (c) 2012 Elsevier B.V. All rights reserved. C1 [Qian, Jun; Sullivan, Joe; Erdmann, Mark; Khounsary, Ali; Assoufid, Lahsen] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Qian, J (reprint author), Argonne Natl Lab, Adv Photon Source, 9700S Cass Ave, Argonne, IL 60439 USA. EM jqian@aps.anl.gov FU UChicago Argonne, LLC; Argonne, a U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX This work was supported by the UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of Science laboratory, was operated under Contract no. DE-AC02-06CH11357. NR 14 TC 5 Z9 5 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 48 EP 51 DI 10.1016/j.nima.2012.10.102 PG 4 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600010 ER PT J AU Qian, SN Qian, K Idir, M AF Qian, Shinan Qian, Kun Idir, Mourad TI Advance in a nano-accuracy surface profiler with an extended-angle test range SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Profiler; Metrology; Nano-accuracy; Strongly curved mirror; Beam lateral motion ID MIRRORS AB An advanced design of a nano-accuracy surface profiler (NSP) is introduced wherein we combined a scanning optical head with non-tilted reference system to facilitate measurements over an extended range of angles. The lateral motion of the beam during testing of a strongly curved mirror induces a systematic error. For a pencil-beam scanning profiler, the arm with varying optical-path lengths should be non-tilted so to eliminate the beam's lateral motion, and the arm for testing larger angles should be short and fixed so to reduce the beam's lateral motion. Our new scheme of having a non-tilted reference system offers an effective, simple, and convenient solution. A beam spot of 0.5-1 mm is used for higher spatial frequency tests in surface-figure measurements. Some preliminary studies and test are demonstrated. (c) 2012 Elsevier B.V. All rights reserved. C1 [Qian, Shinan] Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. [Qian, Kun] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Idir, Mourad] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA. RP Qian, SN (reprint author), Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. EM qian@bnl.gov; qian@bnl.gov FU Brookhaven Science Associates, LLC [DE-AC02-98CH10886]; U.S. Department of Energy FX This manuscript has been authored by Brookhaven Science Associates, LLC Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. The United Government retains, and the publisher, by accepting the article for publication, acknowledges, a world-wide license to publish or reproduce the published form manuscript, or allow others to do so, for the United States Government purposes. NR 16 TC 2 Z9 2 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 52 EP 58 DI 10.1016/j.nima.2012.10.106 PG 7 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600011 ER PT J AU Yashchuk, VV McKinney, WR Artemiev, NA AF Yashchuk, Valeriy V. McKinney, Wayne R. Artemiev, Nikolay A. TI Ex situ metrology of x-ray diffraction gratings SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Optical metrology; Diffraction grating; Groove density; Interferometric microscope; Power spectral density ID LONG TRACE PROFILER; GROOVE DENSITY; SYNCHROTRON-RADIATION; MONOCHROMATOR; MICROSCOPY; DESIGN; LINE AB The idea of measurements of groove density distributions of diffraction gratings suggested and first realized in Proceedings of SPIE 5858, (2005) 58580A consists of determination of the spatial frequency of the first harmonic peak appearing in the power spectral density (PSD) distribution of the grating surface profile observed with a microscope. Using a MicroMap (TM)-570 interferometric microscope, it was experimentally proven that this technique is capable of high precision measurements with x-ray gratings with groove densities of about 250 grooves/mm, varying along the grating by +/- 5%. In the present work, we provide analytical and experimental background for useful application of PSD characterization of groove densities of diffraction gratings. In particular, we analyze the shape of harmonic peaks and derive an analytical fitting function suitable for fitting the PSD peaks obtained with gratings with a variety of groove shapes. We demonstrate the capabilities of the method by application to the groove density distribution measurements with a 300-groove/mm grating suitable for soft x-ray applications. (c) 2012 Elsevier B.V. All rights reserved. C1 [Yashchuk, Valeriy V.; McKinney, Wayne R.; Artemiev, Nikolay A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Yashchuk, VV (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM vvyashchuk@lbl.gov RI McKinney, Wayne/F-2027-2014 OI McKinney, Wayne/0000-0003-2586-3139 FU Office of Science, Office of Basic Energy Sciences, Material Science Division, of the US Department of Energy at Lawrence Berkeley National Laboratory [DE-AC02-05CH11231] FX The authors are grateful to Howard Padmore and Tony Warwick for useful discussions. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, Material Science Division, of the US Department of Energy under Contract no. DE-AC02-05CH11231 at Lawrence Berkeley National Laboratory. NR 30 TC 2 Z9 2 U1 0 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 59 EP 66 DI 10.1016/j.nima.2012.10.109 PG 8 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600012 ER PT J AU Merthe, DJ Goldberg, KA Yashchuk, VV McKinney, WR Celestre, R Mochi, I MacDougall, J Morrison, GY Rekawa, SB Anderson, E Smith, BV Domning, EE Padmore, H AF Merthe, Daniel J. Goldberg, Kenneth A. Yashchuk, Valeriy V. McKinney, Wayne R. Celestre, Richard Mochi, Iacopo MacDougall, James Morrison, Gregory Y. Rekawa, Senajith B. Anderson, Erik Smith, Brian V. Domning, Edward E. Padmore, Howard TI In situ fine tuning of bendable soft x-ray mirrors using a lateral shearing interferometer SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Metrology of x-ray optics; Synchrotron radiation; Shearing interferometry; Knife-edge measurement ID METROLOGY; ALIGNMENT AB Broadly applicable, in situ at-wavelength metrology methods for x-ray optics are currently under development at the Advanced Light Source. We demonstrate the use of quantitative wavefront feedback from a lateral shearing interferometer for the suppression of aberrations. With the high sensitivity provided by the interferometer we were able to optimally tune the bending couples of a single elliptical mirror (NA=2.7 mrad) in order to focus a beam of soft x-rays (1.24 keV) to a nearly diffraction-limited beam waist size of 156(+/- 10) nm. (c) 2012 Elsevier B.V. All rights reserved. C1 [Merthe, Daniel J.; Yashchuk, Valeriy V.; McKinney, Wayne R.; Celestre, Richard; Padmore, Howard] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Goldberg, Kenneth A.; Mochi, Iacopo; MacDougall, James] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. [Morrison, Gregory Y.; Rekawa, Senajith B.; Anderson, Erik; Smith, Brian V.; Domning, Edward E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Engn, Berkeley, CA 94720 USA. RP Yashchuk, VV (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. EM VVYashchuk@lbl.gov RI McKinney, Wayne/F-2027-2014 OI McKinney, Wayne/0000-0003-2586-3139 FU Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory under US Department of Energy [DE-AC02-05CH11231]; United States Government FX This work was supported by the Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory under US Department of Energy Contract no. DE-AC02-05CH11231.; This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor the Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof, or the Regents of the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof, or the Regents of the University of California. NR 27 TC 3 Z9 3 U1 0 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 82 EP 86 DI 10.1016/j.nima.2012.10.105 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600016 ER PT J AU Rack, A Weitkamp, T Assoufid, L Rack, T Zanette, I Morawe, C Kluender, R David, C AF Rack, A. Weitkamp, T. Assoufid, L. Rack, T. Zanette, I. Morawe, Ch. Kluender, R. David, C. TI Protocol to study wavefront preservation capabilities of reflective X-ray optics with coherent synchrotron light SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE X-ray optics; Multilayer mirrors; X-rays; Coherence; X-ray monochromators; X-ray imaging; X-ray phase contrast; Talbot effect; Synchrotron radiation ID RADIATION; BEAMLINE; PHASE; ID19; ESRF; TOMOGRAPHY; BEAMS AB Wavefront preservation of reflective X-ray optics, i.e., homogeneity and coherence properties of the reflected beam, are of crucial importance for their application in combination with high-brilliance synchrotron light sources. In order to compare the performance of optical elements in a quantitative manner, a protocol has been established using the Talbot effect to access the coherence properties of the reflective beam as well as long propagation distance imaging to study its homogeneity. The basic idea is to operate in a single-bounce geometry: a high-resolution imaging detector translated at short propagation distances along the beam is used to measure the visibility of a diffraction grating in transmission geometry placed close to the mirror under study. The change of the fringe visibility as a function of distance between the grating and the detector gives access to the angular source size. A second high-resolution imaging detector at longer propagation distances of up to several meters allows one to measure the homogeneity of the beam. This article outlines the concept as realized at beamline ID19 of the European Synchrotron Radiation Facility, gives insight into some of the technical details to be considered for implementation at other facilities and ends with an example application: the study of a W/B4C multilayer mirror. (c) 2012 Elsevier B.V. All rights reserved. C1 [Rack, A.; Zanette, I.; Morawe, Ch.; Kluender, R.] European Synchrotron Radiat Facil, F-38043 Grenoble, France. [Weitkamp, T.] Synchrotron Soleil, F-91192 Gif Sur Yvette, France. [Assoufid, L.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Rack, T.] Campus Virchow Clin, Charite, D-13353 Berlin, Germany. [David, C.] Paul Scherrer Inst, CH-5232 Villigen, Switzerland. RP Rack, A (reprint author), European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France. EM arack@snafu.de; christian.david@psi.ch RI Weitkamp, Timm/A-8975-2012; Alexander, Rack/C-9397-2012 OI Weitkamp, Timm/0000-0002-0374-0472; FU French research network (RTRA) "Digiteo"; French research network (RTRA) "Triangle de la Physique" [2009-034 T, 2009-79D]; UChicago Argonne, LLC; Argonne, a U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX We would like to thank Jean-Paul Valade (ESRF) for the design and construction of the multilayer mount and for technical support during various experiments. Vitaliy Guzenko and Christian Spreu (PSI) made the gratings, for which they are gratefully acknowledged. T. W. received support from the French research networks (RTRA) "Digiteo" and "Triangle de la Physique" (grants 2009-034 T and 2009-79D). Work performed at Argonne was supported by the UChicago Argonne, LLC, operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of Science laboratory, was operated under contract No. DE-AC02-06CH11357. NR 26 TC 3 Z9 3 U1 2 U2 18 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 101 EP 105 DI 10.1016/j.nima.2012.10.116 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600020 ER PT J AU Fernandez-Perea, M Pivovaroff, MJ Soufli, R Alameda, J Mirkarimi, P Descalle, MA Baker, SL McCarville, T Ziock, K Hornback, D Romaine, S Bruni, R Zhong, Z Honkimaki, V Ziegler, E Christensen, FE Jakobsen, AC AF Fernandez-Perea, Monica Pivovaroff, Mike J. Soufli, Regina Alameda, Jennifer Mirkarimi, Paul Descalle, Marie-Anne Baker, Sherry L. McCarville, Tom Ziock, Klaus Hornback, Donald Romaine, Suzanne Bruni, Ric Zhong, Zhong Honkimaeki, Veijo Ziegler, Eric Christensen, Finn E. Jakobsen, Anders C. TI Ultra-short-period WC/SiC multilayer coatings for x-ray applications SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Multilayer coatings; Thin films; Tungsten carbide; Silicon carbide; Hard x-ray mirrors; Gamma-ray mirrors ID FILMS; ATTENUATION; TABULATION AB Multilayer coatings enhance x-ray mirror performance at incidence angles steeper than the critical angle, allowing for improved flux, design flexibility and facilitating alignment. In an attempt to extend the use of multilayer coatings to photon energies higher than previously achieved, we have developed multilayers with ultra-short periods between 1 and 2 nm based on the material system WC/SiC. This material system was selected because it possesses very sharp and stable interfaces. In this article, we show highlights from a series of experiments performed in order to characterize the stress, microstructure and morphology of the multilayer films, as well as their reflective performance at photon energies from 8 to 384 keV. Published by Elsevier B.V. C1 [Fernandez-Perea, Monica; Pivovaroff, Mike J.; Soufli, Regina; Alameda, Jennifer; Mirkarimi, Paul; Descalle, Marie-Anne; Baker, Sherry L.; McCarville, Tom] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Ziock, Klaus; Hornback, Donald] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Romaine, Suzanne; Bruni, Ric] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Zhong, Zhong] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Honkimaeki, Veijo; Ziegler, Eric] European Synchrotron Radiat Facil, F-38043 Grenoble, France. [Christensen, Finn E.; Jakobsen, Anders C.] Danish Tech Univ DTU Space, DK-2800 Lyngby, Denmark. RP Fernandez-Perea, M (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. EM fernandezper1@llnl.gov RI Pivovaroff, Michael/M-7998-2014 OI Pivovaroff, Michael/0000-0001-6780-6816 FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Oak Ridge National Laboratory [DE-AC05-00OR22725]; National Nuclear Security Administration's Office of Non-proliferation and Verification Research Development FX This work was performed under the auspices of theU.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 and by Oak Ridge National Laboratory, managed by UT-Battelle, under contract DE-AC05-00OR22725. Funding for this research was provided by the National Nuclear Security Administration's Office of Non-proliferation and Verification Research & Development. We acknowledge the European Synchrotron Radiation Facility for provision of synchrotron radiation facilities and the MPI-Stuttgart for access to the High Energy Micro-Diffraction apparatus at ESRF. The contributions of Cynthia Gonsalves and Harry Kawayoshi (Evans Analytical Labs, Sunnyvale, California) in the sample preparation and acquisition of the TEM images is gratefully acknowledged. NR 16 TC 10 Z9 10 U1 4 U2 30 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 114 EP 119 DI 10.1016/j.nima.2012.10.066 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600022 ER PT J AU Kaznatcheev, K Idir, M Chubar, O AF Kaznatcheev, K. Idir, M. Chubar, O. TI Novel approaches in the SR beamline design SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Workshop on Metrology for X-ray Optics, Mirror Design and Fabrication CY JUL 04-06, 2012 CL Barcelona, SPAIN DE Synchrotron radiation beamline design ID X-RAY-SCATTERING; ABSORPTION-SPECTROSCOPY; MICROSCOPY; RESOLUTION; SPACE AB High brightness third generation x-ray sources bring new experimental possibilities and impose new challenges. Coherent scattering and diffraction-limited microscopy require wave-preserving optics, high-resolution inelastic scattering novel optical elements, where x-ray interferometry or the requirements of precise polarization measurements change the optical layout. With NSLS-II development as an illustration we discuss recent trends in beamline design. (c) 2012 Published by Elsevier B.V. C1 [Kaznatcheev, K.; Idir, M.; Chubar, O.] Brookhaven Natl Lab, Photon Sci Directorates, Upton, NY 11973 USA. RP Kaznatcheev, K (reprint author), Brookhaven Natl Lab, Photon Sci Directorates, Upton, NY 11973 USA. EM kaznatch@bnl.gov RI Chubar, Oleg/B-6286-2014 FU US DOE [DE-AC02-98CH10886] FX This work is supported by US DOE, Contract no. DE-AC02-98CH10886. NR 36 TC 0 Z9 0 U1 0 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAY 11 PY 2013 VL 710 BP 161 EP 165 DI 10.1016/j.nima.2012.11.090 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 133HD UT WOS:000318128600030 ER PT J AU Boughezal, R Schulze, M AF Boughezal, Radja Schulze, Markus TI Precise Predictions for Top-Quark-Plus-Missing-Energy Signatures at the LHC SO PHYSICAL REVIEW LETTERS LA English DT Article ID BOSON AB We study the pair production of scalar top-quark partners decaying to a top-quark pair plus large missing energy at the LHC, a signature which appears in numerous models that address outstanding problems at the TeV scale. The severe experimental search cuts require a description which combines higher-order corrections to both production and decay dynamics for a realistic final state. We do this at next-to-leading order in QCD. We find large, kinematic-dependent QCD corrections that differ dramatically depending upon the observable under consideration, potentially impacting the search for and interpretation of these states. C1 [Boughezal, Radja; Schulze, Markus] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. RP Boughezal, R (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. EM rboughezal@hep.anl.gov; markus.schulze@anl.gov FU U.S. DOE [DE-AC02-06CH11357] FX This research is supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. NR 20 TC 7 Z9 7 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 10 PY 2013 VL 110 IS 19 AR 192002 DI 10.1103/PhysRevLett.110.192002 PG 5 WC Physics, Multidisciplinary SC Physics GA 195WU UT WOS:000322735100002 PM 23705699 ER PT J AU Chapman, T Berger, RL Brunner, S Williams, EA AF Chapman, T. Berger, R. L. Brunner, S. Williams, E. A. TI Kinetic Theory and Vlasov Simulation of Nonlinear Ion-Acoustic Waves in Multi-Ion Species Plasmas SO PHYSICAL REVIEW LETTERS LA English DT Article ID FREQUENCY-SHIFT; OSCILLATIONS AB The theory of damping and nonlinear frequency shifts from particles resonant with ion-acoustic waves (IAWs) is presented for multi-ion species plasma and compared to driven wave Vlasov simulations. Two distinct IAW modes may be supported in multi-ion species plasmas, broadly classified as fast and slow by their phase velocity relative to the constituent ion thermal velocities. In current fusion-relevant long pulse experiments, the ion to electron temperature ratio, T-i/T-e, is expected to reach a level such that the least damped and thus more readily driven mode is the slow mode, with both linear and nonlinear properties that are shown to differ significantly from the fast mode. The lighter ion species of the slow mode is found to make no significant contribution to the IAW frequency shift despite typically being the dominant contributor to the Landau damping. C1 [Chapman, T.; Berger, R. L.; Williams, E. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Brunner, S.] Ecole Polytech Fed Lausanne, CRPP PPB, Assoc EURATOM Confederat Suisse, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland. RP Chapman, T (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA. EM chapman29@llnl.gov RI Brunner, Stephan/B-6200-2009 OI Brunner, Stephan/0000-0001-7588-7476 FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Laboratory Research and Development Program at LLNL [12-ERD-061] FX The authors gratefully acknowledge the helpful comments of B. I. Cohen and I. Y. Dodin, and the suggestions of the referees. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344 and funded by the Laboratory Research and Development Program at LLNL under project tracking code No. 12-ERD-061. NR 15 TC 4 Z9 4 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 10 PY 2013 VL 110 IS 19 AR 195004 DI 10.1103/PhysRevLett.110.195004 PG 5 WC Physics, Multidisciplinary SC Physics GA 195WU UT WOS:000322735100005 PM 23705714 ER PT J AU Marcucci, LE Schiavilla, R Viviani, M AF Marcucci, L. E. Schiavilla, R. Viviani, M. TI Proton-Proton Weak Capture in Chiral Effective Field Theory SO PHYSICAL REVIEW LETTERS LA English DT Article ID FUSION AB The astrophysical S factor for proton-proton weak capture is calculated in chiral effective field theory over the center-of-mass relative-energy range 0-100 keV. The chiral two-nucleon potential derived up to next-to-next-to-next-to leading order is augmented by the full electromagnetic interaction including, beyond Coulomb, two-photon and vacuum-polarization corrections. The low-energy constants entering the weak current operators are fixed so as to reproduce the A = 3 binding energies and magnetic moments and the Gamow-Teller matrix element in tritium beta decay. Contributions from S and P partial waves in the incoming two-proton channel are retained. The S factor at zero energy is found to be Sd(0) = (4.030 +/- 0.006) x 10(-23) MeV fm(2), with a P-wave contribution of 0.020 x 10(-23) MeV fm(2). The theoretical uncertainty is due to the fitting procedure of the low-energy constants and to the cutoff dependence. C1 [Marcucci, L. E.] Univ Pisa, Dept Phys, I-56127 Pisa, Italy. [Marcucci, L. E.; Viviani, M.] INFN Pisa, I-56127 Pisa, Italy. [Schiavilla, R.] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. [Schiavilla, R.] Jefferson Lab, Newport News, VA 23606 USA. RP Marcucci, LE (reprint author), Univ Pisa, Dept Phys, I-56127 Pisa, Italy. FU U.S. Department of Energy, Office of Nuclear Science [DE-AC05-06OR23177] FX The work of R. S. is supported by the U.S. Department of Energy, Office of Nuclear Science, under Contract No. DE-AC05-06OR23177. NR 15 TC 27 Z9 27 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 10 PY 2013 VL 110 IS 19 AR 192503 DI 10.1103/PhysRevLett.110.192503 PG 5 WC Physics, Multidisciplinary SC Physics GA 195WU UT WOS:000322735100003 PM 23705703 ER PT J AU Selamet, OF Pasaogullari, U Spernjak, D Hussey, DS Jacobson, DL Mat, MD AF Selamet, O. F. Pasaogullari, U. Spernjak, D. Hussey, D. S. Jacobson, D. L. Mat, M. D. TI Two-phase flow in a proton exchange membrane electrolyzer visualized in situ by simultaneous neutron radiography and optical imaging SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article DE Proton exchange membrane electrolyzer; Two-phase flow; Neutron radiography; Optical imaging; Hydrogen production ID METHANOL FUEL-CELLS; LOCAL CURRENT DISTRIBUTION; SOLID-POLYMER-ELECTROLYTE; PEM WATER ELECTROLYSIS; ELECTROCHEMICAL-CELL; SINGLE-SERPENTINE; PERFORMANCE; HYDROGEN; PLATE; SPE AB In proton exchange membrane (PEM) electrolyzers, oxygen evolution in the anode and flooding due to water cross-over in the cathode yields two distinct two-phase transport conditions which strongly affect the performance. Two-phase transport in an electrolyzer cell is visualized by simultaneous neutron radiography and optical imaging. Optical and neutron data are used in a complementary manner to aid in understanding the two-phase flow behavior. Two different patterns of gas-bubble evolution and departure are identified: periodic growth/removal of small bubbles vs. prolonged blockage by stagnant large bubbles. In addition, the bubble distribution across the active area is not uniform due to combined effects of buoyancy and proximity to the inlet. The effects of operating parameters such as current density, temperature and water flow rate on the two-phase distribution are investigated. Higher water accumulation is detected in the cathode chamber at higher current density, even though the cathode is purged with a high flow rate of N-2. The temperature is found to affect the volume of water; higher temperature yields less water and more gas volume in the anode chamber. Higher temperature also enhanced the water transport in the cathode chamber. Finally, water transported through the membrane to the cathode reduced the cell performance by limiting the hydrogen mass transport. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Selamet, O. F.; Pasaogullari, U.] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA. [Selamet, O. F.; Pasaogullari, U.] Univ Connecticut, Ctr Clean Energy Engn, Storrs, CT 06269 USA. [Selamet, O. F.; Mat, M. D.] Nigde Univ, Dept Mech Engn, TR-51245 Nigde, Turkey. [Spernjak, D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Hussey, D. S.; Jacobson, D. L.] NIST, Gaithersburg, MD 20899 USA. RP Selamet, OF (reprint author), Nigde Univ, Dept Mech Engn, TR-51245 Nigde, Turkey. EM omerfarukselamet@nigde.edu.tr FU Scientific and Research Council of Turkey (TUBITAK); National Science Foundation [CBET-0748063]; U.S. Department of Commerce; NIST Radiation and Biomolecular Physics Division; Director's Office of NIST; NIST Center for Neutron Research; Department of Energy [DEAI01-01EE50660] FX Omer F. Selamet would like to thank the Scientific and Research Council of Turkey (TUBITAK) for financial support for this research. Financial support for this work from the National Science Foundation (CBET-0748063) is gratefully acknowledged. This work was supported by the U.S. Department of Commerce, the NIST Radiation and Biomolecular Physics Division, the Director's Office of NIST, the NIST Center for Neutron Research, and the Department of Energy through Interagency Agreement No. DEAI01-01EE50660. We thank professors Ajay K. Prasad and Suresh G. Advani of the University of Delaware for their assistance with the experimental setup and equipment loan, Eli Baltic of the NIST for his help during the experiments in the NIST, and Richard S. Fu for his help with data analysis. NR 33 TC 16 Z9 16 U1 7 U2 60 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD MAY 10 PY 2013 VL 38 IS 14 BP 5823 EP 5835 DI 10.1016/j.ijhydene.2013.02.087 PG 13 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 148GM UT WOS:000319232500036 ER PT J AU Lin, KH Sun, CH Ju, SP Smith, SC AF Lin, Ken-Huang Sun, Chenghua Ju, Shin-Pon Smith, Sean C. TI Density functional theory study on adsorption of Pt nanoparticle on graphene SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article DE CO; Pt nanoparticle; Adsorption; Density functional theory ID CLUSTERS; METALS; WATER; ATOMS AB The mechanism of CO oxidation was catalyzed by Pt nanoparticles on graphene through first-principle density functional theory (DFT) calculations. The simulation results show that the lowest-energy Pt-7 nanoparticle carries slightly negative charges which enhance the O-2 binding energy compared to the corresponding graphene surfaces. We placed the Pt nanoparticle on different adsorption sites, and the Pt-7 nanoparticle was found to preferentially absorb on Bond (B) site. To gain insight into the high-catalytic activity of the Pt nanoparticles, the interaction between the adsorbate and substrate was also analyzed by detailed electronic analysis such as activation barrier, adsorption energy and Mulliken charge analysis. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Lin, Ken-Huang; Ju, Shin-Pon] Natl Sun Yat Sen Univ, Dept Mech & Electromech Engn, Ctr Nanosci & Nanotechnol, Kaohsiung 804, Taiwan. [Sun, Chenghua] Univ Queensland, Australia Inst Bioengn & Nanotechnol, Ctr Computat Mol Sci, Brisbane, Qld 4072, Australia. [Smith, Sean C.] Div Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RP Ju, SP (reprint author), Natl Sun Yat Sen Univ, Dept Mech & Electromech Engn, Ctr Nanosci & Nanotechnol, 70 Lien Hai Rd, Kaohsiung 804, Taiwan. EM d993020013@student.nsysu.edu.tw; c.sun1@uq.edu.au; jushinpon@gmail.com; smithsc@ornl.gov RI Sun, Chenghua/C-5734-2009; Shin-pon, Ju/A-4292-2012; Smith, Sean/H-5003-2015 OI Smith, Sean/0000-0002-5679-8205 FU National Science Council of Taiwan [NSC101-2628-E-110-003-MY3, NSC99-2911-I-110-512]; National Center for High-performance Computing, Taiwan FX The authors would like to thank the (1) National Science Council of Taiwan, under Grant No. NSC101-2628-E-110-003-MY3 and NSC99-2911-I-110-512, (2) National Center for High-performance Computing, Taiwan, for supporting this study. (3) National Center for Theoretical Sciences, Taiwan. NR 19 TC 6 Z9 6 U1 8 U2 104 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD MAY 10 PY 2013 VL 38 IS 14 BP 6283 EP 6287 DI 10.1016/j.ijhydene.2012.12.116 PG 5 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 148GM UT WOS:000319232500095 ER PT J AU Bousso, R Zukowski, C AF Bousso, Raphael Zukowski, Claire TI Multivacuum initial conditions and the arrow of time SO PHYSICAL REVIEW D LA English DT Article ID UNIVERSE; SUPERNOVAE AB Depending on the type and arrangement of metastable vacua in the theory, initial conditions in a de Sitter vacuum with arbitrarily large entropy can be compatible with the observed arrow of time, if the causal patch or related measures are used to regulate divergences. An important condition, however, is that the initial vacuum cannot produce observers from rare fluctuations (Boltzmann brains). Here we consider more general initial conditions where multiple vacua have nonzero initial probability. We examine whether the prediction of an arrow of time is destroyed by a small initial admixture of vacua that can produce Boltzmann brains. We identify general criteria and apply them to two nontrivial examples of such initial probability distributions. The Hartle-Hawking state is superexponentially dominated by the vacuum with smallest positive cosmological constant, so one might expect that other initial vacua can be neglected; but in fact, their inclusion drastically narrows the range of theory parameters for which an arrow of time is predicted. The dominant eigenvector of the global rate equation of eternal inflation is dominated by the longest-lived metastable vacuum. If an arrow of time emerges in the single-initial-vacuum approximation, then we find that this conclusion survives the admixture of other initial vacua. By global-local measure duality, this result amounts to a successful consistency test of certain global cutoffs, including light-cone time and scale-factor time. C1 [Bousso, Raphael; Zukowski, Claire] Univ Calif Berkeley, Ctr Theoret Phys, Berkeley, CA 94720 USA. [Bousso, Raphael; Zukowski, Claire] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Bousso, Raphael; Zukowski, Claire] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Bousso, R (reprint author), Univ Calif Berkeley, Ctr Theoret Phys, Berkeley, CA 94720 USA. FU Berkeley Center for Theoretical Physics; National Science Foundation [0855653, 0756174]; fqxi Grant [RFP3-1004]; U.S. Department of Energy [DE-AC02-05CH11231]; NSF FX We are grateful to D. Page for alerting us to the importance of studying more general initial conditions. We would also like to thank A. Dahlen, S. Leichenauer, V. Rosenhaus and M. P. Salem for helpful discussions, and K. Olum and D. Schwarz-Perlov for correspondence. This work was supported by the Berkeley Center for Theoretical Physics, by the National Science Foundation (Grants No. 0855653 and No. 0756174), by fqxi Grant No. RFP3-1004, and by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The work of C. Z. is supported by the NSF. NR 33 TC 2 Z9 2 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 10 PY 2013 VL 87 IS 10 AR 103504 DI 10.1103/PhysRevD.87.103504 PG 14 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 142CD UT WOS:000318772900005 ER PT J AU Nilmeier, JP Kirshner, DA Wong, SE Lightstone, FC AF Nilmeier, Jerome P. Kirshner, Daniel A. Wong, Sergio E. Lightstone, Felice C. TI Rapid Catalytic Template Searching as an Enzyme Function Prediction Procedure SO PLOS ONE LA English DT Article ID PROTEIN FUNCTION PREDICTION; COMBINATORIAL EXTENSION CE; 3D COORDINATE TEMPLATES; LIGAND-BINDING-SITES; FUNCTION INFERENCE; STRUCTURAL CLASSIFICATION; DIVERGENT EVOLUTION; GENE ONTOLOGY; ACTIVE-SITES; CLUSTAL-W AB We present an enzyme protein function identification algorithm, Catalytic Site Identification (CatSId), based on identification of catalytic residues. The method is optimized for highly accurate template identification across a diverse template library and is also very efficient in regards to time and scalability of comparisons. The algorithm matches three-dimensional residue arrangements in a query protein to a library of manually annotated, catalytic residues - The Catalytic Site Atlas (CSA). Two main processes are involved. The first process is a rapid protein-to-template matching algorithm that scales quadratically with target protein size and linearly with template size. The second process incorporates a number of physical descriptors, including binding site predictions, in a logistic scoring procedure to re-score matches found in Process 1. This approach shows very good performance overall, with a Receiver-Operator-Characteristic Area Under Curve (AUC) of 0.971 for the training set evaluated. The procedure is able to process cofactors, ions, nonstandard residues, and point substitutions for residues and ions in a robust and integrated fashion. Sites with only two critical (catalytic) residues are challenging cases, resulting in AUCs of 0.9411 and 0.5413 for the training and test sets, respectively. The remaining sites show excellent performance with AUCs greater than 0.90 for both the training and test data on templates of size greater than two critical (catalytic) residues. The procedure has considerable promise for larger scale searches. C1 [Nilmeier, Jerome P.; Kirshner, Daniel A.; Wong, Sergio E.; Lightstone, Felice C.] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Phys & Life Sci Directorate, Livermore, CA USA. RP Lightstone, FC (reprint author), Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Phys & Life Sci Directorate, Livermore, CA USA. EM lightstone1@llnl.gov FU Defense Threat Reduction Agency (DTRA) [B094679I]; LDRD [12-SI-004]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX The authors gratefully acknowledge the Defense Threat Reduction Agency (DTRA) for supporting this work (grant B094679I). A portion of this work was also funded by LDRD 12-SI-004. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.; This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. Release Number LLNL-POST-564184. NR 85 TC 12 Z9 12 U1 0 U2 4 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD MAY 10 PY 2013 VL 8 IS 5 AR e62535 DI 10.1371/journal.pone.0062535 PG 17 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 143FO UT WOS:000318852400006 PM 23675414 ER PT J AU Boley, CD Rubenchik, AM AF Boley, Charles D. Rubenchik, Alexander M. TI Modeling of laser interactions with composite materials SO APPLIED OPTICS LA English DT Article AB We develop models of laser interactions with composite materials consisting of fibers embedded within a matrix. A ray-trace model is shown to determine the absorptivity, absorption depth, and optical power enhancement within the material, as well as the angular distribution of the reflected light. We also develop a macroscopic model, which provides physical insight and overall results. We show that the parameters in this model can be determined from the ray trace model. (c) 2013 Optical Society of America C1 [Boley, Charles D.; Rubenchik, Alexander M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Rubenchik, AM (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM rubenchik1@llnl.gov FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 8 TC 6 Z9 7 U1 0 U2 11 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X J9 APPL OPTICS JI Appl. Optics PD MAY 10 PY 2013 VL 52 IS 14 BP 3329 EP 3337 DI 10.1364/AO.52.003329 PG 9 WC Optics SC Optics GA 145DP UT WOS:000318994500026 PM 23669848 ER PT J AU Savransky, D Thomas, SJ Poyneer, LA Macintosh, BA AF Savransky, Dmitry Thomas, Sandrine J. Poyneer, Lisa A. Macintosh, Bruce A. TI Computer vision applications for coronagraphic optical alignment and image processing SO APPLIED OPTICS LA English DT Article ID PHOTOMETRY; ASTROMETRY AB Modern coronagraphic systems require very precise alignment between optical components and can benefit greatly from automated image processing. We discuss three techniques commonly employed in the fields of computer vision and image analysis as applied to the Gemini Planet Imager, a new facility instrument for the Gemini South Observatory. We describe how feature extraction and clustering methods can be used to aid in automated system alignment tasks, and also present a search algorithm for finding regular features in science images used for calibration and data processing. Along with discussions of each technique, we present our specific implementation and show results of each one in operation. (c) 2013 Optical Society of America C1 [Savransky, Dmitry; Poyneer, Lisa A.; Macintosh, Bruce A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Thomas, Sandrine J.] Gemini Observ, Hilo, HI 96720 USA. RP Savransky, D (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. EM savransky1@llnl.gov RI Savransky, Dmitry/M-1298-2014 OI Savransky, Dmitry/0000-0002-8711-7206 FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; GPI FX The authors would like to thank the entire GPI collaboration, and especially the GPI integration and testing team for their support and dedication. Portions of this work were performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 17 TC 10 Z9 10 U1 0 U2 7 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X EI 2155-3165 J9 APPL OPTICS JI Appl. Optics PD MAY 10 PY 2013 VL 52 IS 14 BP 3394 EP 3403 DI 10.1364/AO.52.003394 PG 10 WC Optics SC Optics GA 145DP UT WOS:000318994500034 PM 23669856 ER PT J AU Kaiser, SA Salazar, VM Hoops, AA AF Kaiser, Sebastian Arnold Salazar, Victor Manuel Hoops, Alexandra A. TI Schlieren measurements in the round cylinder of an optically accessible internal combustion engine SO APPLIED OPTICS LA English DT Article ID MIXTURES; FLAMES AB This paper describes the design and experimental application of an optical system to perform schlieren measurements in the curved geometry of the cylinder of an optically accessible internal combustion engine. Key features of the system are a pair of cylindrical positive meniscus lenses, which keep the beam collimated while passing through the unmodified, thick-walled optical cylinder, and a pulsed, high-power light-emitting diode with narrow spectral width. In combination with a high-speed CMOS camera, the system is used to visualize the fuel jet after injection of hydrogen fuel directly into the cylinder from a high-pressure injector. Residual aberrations, which limit the system's sensitivity, are characterized experimentally and are compared to the predictions of ray-tracing software. (c) 2013 Optical Society of America C1 [Kaiser, Sebastian Arnold] Univ Duisburg Essen, D-47048 Duisburg, Germany. [Salazar, Victor Manuel] Gen Elect Global Res Ctr, Niskayuna, NY 12309 USA. [Hoops, Alexandra A.] Sandia Natl Labs, Livermore, CA 94551 USA. RP Kaiser, SA (reprint author), Univ Duisburg Essen, D-47048 Duisburg, Germany. EM sebastian.kaiser@uni-due.de FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy; United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Use of a high-power LED was an illuminating idea of Chris Carlen at Sandia National Labs, who also designed the LED driver. Ken St. Hilaire and Gary Hux provided excellent technical support for the engine experiments. The high-speed camera was borrowed from Lyle Pickett's group. Financial support for this research was provided by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, program manager Gurpreet Singh. The research was performed at the Combustion Research Facility, Sandia National Laboratories, Livermore, California. Sandia is operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 27 TC 6 Z9 6 U1 1 U2 15 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X J9 APPL OPTICS JI Appl. Optics PD MAY 10 PY 2013 VL 52 IS 14 BP 3433 EP 3443 DI 10.1364/AO.52.003433 PG 11 WC Optics SC Optics GA 145DP UT WOS:000318994500039 PM 23669861 ER PT J AU Ali, SS Whitney, JC Stevenson, J Robinson, H Howell, PL Navarre, WW AF Ali, Sabrina S. Whitney, John C. Stevenson, James Robinson, Howard Howell, P. Lynne Navarre, William Wiley TI Structural Insights into the Regulation of Foreign Genes in Salmonella by the Hha/H-NS Complex SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID PROTEIN H-NS; ENTERICA SEROVAR TYPHIMURIUM; NUCLEOID-ASSOCIATED PROTEINS; HORIZONTALLY ACQUIRED GENES; ESCHERICHIA-COLI; OLIGOMERIZATION DOMAIN; DIMERIZATION DOMAIN; BACTERIAL GENOMES; CRYSTAL-STRUCTURE; VIBRIO-CHOLERAE AB The bacterial nucleoid-associated proteins Hha and H-NS jointly repress horizontally acquired genes in Salmonella, including essential virulence loci encoded within Salmonella pathogenicity islands. Hha is known to interact with the N-terminal dimerization domain of H-NS; however, the manner in which this interaction enhances transcriptional silencing is not understood. To further understand this process, we solved the x-ray crystal structure of Hha in complex with the N-terminal dimerization domain of H-NS (H-NS(1-46)) to 3.2 angstrom resolution. Two monomers of Hha bind to symmetrical sites on either side of the H-NS(1-46) dimer. Disruption of the Hha/H-NS interaction by the H-NS site-specific mutation I11A results in increased expression of the Hha/H-NS co-regulated gene hilA without affecting the expression levels of proV, a target gene repressed by H-NS in an Hha-independent fashion. Examination of the structure revealed a cluster of conserved basic amino acids that protrude from the surface of Hha on the opposite side of the Hha/H-NS(1-46) interface. Hha mutants with a diminished positively charged surface maintain the ability to interact with H-NS but can no longer regulate hilA. Increased expression of the hilA locus did not correspond to significant depletion of H-NS at the promoter region in chromatin immunoprecipitation assays. However, in vitro, we find Hha improves H-NS binding to target DNA fragments. Taken together, our results show for the first time how Hha and H-NS interact to direct transcriptional repression and reveal that a positively charged surface of Hha enhances the silencing activity of H-NS nucleoprotein filaments. C1 [Ali, Sabrina S.; Stevenson, James; Navarre, William Wiley] Univ Toronto, Dept Mol Genet, Toronto, ON M5S 1A8, Canada. [Whitney, John C.; Howell, P. Lynne] Univ Toronto, Dept Biochem, Toronto, ON M5S 1A8, Canada. [Whitney, John C.; Howell, P. Lynne] Hosp Sick Children, Res Inst, Program Mol Struct & Funct, Toronto, ON M5G 1X8, Canada. [Robinson, Howard] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. RP Navarre, WW (reprint author), Univ Toronto, Fac Med, Dept Mol Genet, Rm 4379,1 Kings Coll Circle, Toronto, ON M5S 1A8, Canada. EM william.navarre@utoronto.ca OI Navarre, William/0000-0002-9293-9220 FU Canada Institutes for Health Research (CIHR) [MOP-86683, MSH-87729]; Natural Sciences and Engineering Research Council of Canada [RGPIN 386286-10]; CIHR [13337]; Natural Science and Engineering Research Council of Canada; Cystic Fibrosis Canada; Ontario Graduate Scholarship Program; Ontario Student Opportunities Trust Fund; Hospital for Sick Children Foundation Student Scholarship Program FX The Navarre laboratory is supported by an Operating Grant and New Investigator Award from the Canada Institutes for Health Research (CIHR) (MOP-86683 and MSH-87729) and a Discovery Grant from the Natural Sciences and Engineering Research Council of Canada (RGPIN 386286-10). This work was also supported by CIHR Grant 13337 (to P. L. H.). The National Synchrotron Light Source Beam line X29 is supported by the United States Department of Energy Office of Biological and Environmental Research and the National Institutes of Health National Center for Research Resources.; Supported in part by graduate scholarships from the Natural Science and Engineering Research Council of Canada, Cystic Fibrosis Canada, the Ontario Graduate Scholarship Program, the Ontario Student Opportunities Trust Fund, and the Hospital for Sick Children Foundation Student Scholarship Program. NR 62 TC 21 Z9 24 U1 2 U2 12 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA SN 0021-9258 J9 J BIOL CHEM JI J. Biol. Chem. PD MAY 10 PY 2013 VL 288 IS 19 BP 13356 EP 13369 DI 10.1074/jbc.M113.455378 PG 14 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 143EV UT WOS:000318850300021 PM 23515315 ER PT J AU Kim, HS Caswell, CC Foreman, R Roop, RM Crosson, S AF Kim, Hye-Sook Caswell, Clayton C. Foreman, Robert Roop, R. Martin, II Crosson, Sean TI The Brucella abortus General Stress Response System Regulates Chronic Mammalian Infection and Is Controlled by Phosphorylation and Proteolysis SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID SIGMA-FACTOR MIMICRY; CAULOBACTER-CRESCENTUS; 2-COMPONENT SYSTEM; BACILLUS-SUBTILIS; STRUCTURAL BASIS; VIRULENCE; PHYR; MELITENSIS; MODEL; IDENTIFICATION AB Brucella spp. are adept at establishing a chronic infection in mammals. We demonstrate that core components of the alpha-proteobacterial general stress response (GSR) system, PhyR and sigma(E1), are required for Brucella abortus stress survival in vitro and maintenance of chronic murine infection in vivo. Delta phyR and Delta rpoE1 null mutants exhibit decreased survival under acute oxidative and acid stress but are not defective in infection of primary murine macrophages or in initial colonization of BALB/c mouse spleens. However, Delta phyR and Delta rpoE1 mutants are attenuated in spleens beginning 1 month postinfection. Thus, the B. abortus GSR system is dispensable for colonization but is required to maintain chronic infection. A genome-scale analysis of the B. abortus GSR regulon identified stress response genes previously linked to virulence and genes that affect immunomodulatory components of the cell envelope. These data support a model in which the GSR system affects both stress survival and the interface between B. abortus and the host immune system. We further demonstrate that PhyR proteolysis is a unique feature of GSR control in B. abortus. Proteolysis of PhyR provides a mechanism to avoid spurious PhyR protein interactions that inappropriately activate GSR-dependent transcription. We conclude that the B. abortus GSR system regulates acute stress adaptation and long term survival within a mammalian host and that PhyR proteolysis is a novel regulatory feature in B. abortus that ensures proper control of GSR transcription. C1 [Kim, Hye-Sook; Crosson, Sean] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA. [Kim, Hye-Sook; Foreman, Robert; Crosson, Sean] Argonne Natl Lab, Howard Taylor Ricketts Lab, Argonne, IL 60439 USA. [Caswell, Clayton C.; Roop, R. Martin, II] E Carolina Univ, Sch Med, Dept Microbiol & Immunol, Greenville, NC 27834 USA. [Foreman, Robert; Crosson, Sean] Univ Chicago, Comm Microbiol, Chicago, IL 60637 USA. RP Crosson, S (reprint author), Univ Chicago, Dept Biochem & Mol Biol, 929 E 57th St,GCIS W138, Chicago, IL 60637 USA. EM scrosson@uchicago.edu FU National Institutes of Health (NIH), NIAID, Regional Center of Excellence for Biodefense and Emerging Infectious Diseases Research (RCE) Program (Region V "Great Lakes" RCE) [1U54AI057153]; NIH, NIAID [R01AI048499] FX This work was supported, in whole or in part, by the National Institutes of Health (NIH), NIAID, Regional Center of Excellence for Biodefense and Emerging Infectious Diseases Research (RCE) Program (Region V "Great Lakes" RCE; Grant 1U54AI057153) and NIH, NIAID, Grant R01AI048499. NR 44 TC 20 Z9 21 U1 1 U2 13 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA SN 0021-9258 J9 J BIOL CHEM JI J. Biol. Chem. PD MAY 10 PY 2013 VL 288 IS 19 BP 13906 EP 13916 DI 10.1074/jbc.M113.459305 PG 11 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 143EV UT WOS:000318850300071 PM 23546883 ER PT J AU Morales, MA McMahon, JM Pierleoni, C Ceperley, DM AF Morales, Miguel A. McMahon, Jeffrey M. Pierleoni, Carlo Ceperley, David M. TI Towards a predictive first-principles description of solid molecular hydrogen with density functional theory SO PHYSICAL REVIEW B LA English DT Article ID CRYSTAL-STRUCTURE; HIGH-PRESSURE; PSEUDOPOTENTIALS; METALS; GPA AB We examine the influence of the main approximations employed in density functional theory descriptions of the solid phase of molecular hydrogen near dissociation. We consider the importance of nuclear quantum effects on equilibrium properties and find that they strongly influence intramolecular properties, such as bond fluctuations and stability. We demonstrate that the combination of both thermal and quantum effects make a drastic change to the predicted optical properties of the molecular solid, suggesting a limited value to dynamical, e.g., finite-temperature predictions based on classical ions and static crystals. We also consider the influence of the chosen exchange-correlation density functional on the predicted properties of hydrogen, in particular, the pressure dependence of the band gap and the zero-point energy. Finally, we use our simulations to make an assessment of the accuracy of typically employed approximations to the calculation of the Gibbs free energy of the solid, namely the quasi-harmonic approximation for solids. We find that, while the approximation is capable of producing free energies with an accuracy of approximate to 10 meV, this is not enough to make reliable predictions of the phase diagram of hydrogen from first principles due to the small free energy differences seen between several potential structures for the solid; direct free energy calculations for quantum protons are required in order to make definite predictions. C1 [Morales, Miguel A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [McMahon, Jeffrey M.; Ceperley, David M.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA. [Pierleoni, Carlo] Univ Aquila, Dept Phys & Chem Sci, I-67010 Laquila, Italy. [Pierleoni, Carlo] CNISM UdR Aquila, I-67010 Laquila, Italy. RP Morales, MA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM moralessilva2@llnl.gov RI Pierleoni, Carlo/D-5519-2016 OI Pierleoni, Carlo/0000-0001-9188-3846 FU US Department of Energy at the Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; LDRD Grant [13-LW-004]; DOE [DE-FC02-06ER25794, DE-FG52-09NA29456]; Italian Institute of Technology (IIT) under the SEED project [259 SIMBEDD]; PRACE Project [2011050781] FX M.A.M. was supported by the US Department of Energy at the Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344 and by LDRD Grant No. 13-LW-004. J.M.M. and D.M.C. were supported by DOE DE-FC02-06ER25794 and DE-FG52-09NA29456. C.P. was supported by the Italian Institute of Technology (IIT) under the SEED project Grant No. 259 SIMBEDD. Computer time was provided by the US DOE INCITE program, Lawrence Livermore National Laboratory through the 7th Institutional Unclassified Computing Grand Challenge program and PRACE Project No. 2011050781. NR 45 TC 31 Z9 31 U1 0 U2 38 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 10 PY 2013 VL 87 IS 18 AR 184107 DI 10.1103/PhysRevB.87.184107 PG 9 WC Physics, Condensed Matter SC Physics GA 142PP UT WOS:000318809800001 ER PT J AU Plumb, KW Cook, AM Clancy, JP Kolesnikov, AI Jeon, BC Noh, TW Paramekanti, A Kim, YJ AF Plumb, K. W. Cook, A. M. Clancy, J. P. Kolesnikov, A. I. Jeon, B. C. Noh, T. W. Paramekanti, A. Kim, Young-June TI Neutron scattering study of magnetic excitations in a 5d-based double-perovskite Ba2FeReO6 SO PHYSICAL REVIEW B LA English DT Article ID SUPERCONDUCTIVITY; MAGNETORESISTANCE; RHENIUM; CA; BA AB Motivated by exploring spin-orbit-coupled magnetism in 5d-based transition metal oxides (TMOs) beyond the iridates, we present a powder inelastic neutron scattering study of magnetic excitations in Ba2FeReO6-a member of the double-perovskite family of materials which exhibit half-metallic behavior and high Curie temperatures T-c. We find clear evidence of two well-defined dispersing magnetic modes in its low-temperature ferrimagnetic state. We develop a local moment model, which incorporates the interaction of Fe spins with spin-orbital locked magnetic moments on Re and show that it captures our experimental observations. This allows us to extract moment sizes and exchange couplings, explain the magnitude of T-c, and infer that magnetostructural locking terms are weak. Our study further opens up Re-based compounds as model systems to explore the interplay of strong correlations and spin-orbit coupling in 5d TMOs. C1 [Plumb, K. W.; Cook, A. M.; Clancy, J. P.; Paramekanti, A.; Kim, Young-June] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. [Kolesnikov, A. I.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Jeon, B. C.; Noh, T. W.] Seoul Natl Univ, Inst Basic Sci, Ctr Funct Interfaces Correlated Electron Syst, Seoul 151747, South Korea. [Jeon, B. C.; Noh, T. W.] Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea. [Paramekanti, A.] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada. RP Plumb, KW (reprint author), Univ Toronto, Dept Phys, 60 St George St, Toronto, ON M5S 1A7, Canada. RI Noh, Tae Won /K-9405-2013; Kim, Young-June /G-7196-2011; Kolesnikov, Alexander/I-9015-2012 OI Kim, Young-June /0000-0002-1172-8895; Kolesnikov, Alexander/0000-0003-1940-4649 FU NSERC of Canada; Banting Postdoctoral Fellowship program; Canada Research Chair program; Ontario Graduate Scholarship; Research Center Program of Institute for Basic Science (IBS) in Korea; Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy FX Work at Toronto was supported by the NSERC of Canada, the Banting Postdoctoral Fellowship program, and the Canada Research Chair program. K.W.P. acknowledges support from the Ontario Graduate Scholarship. B.C.J. and T.W.N. are supported by the Research Center Program of Institute for Basic Science (IBS) in Korea. Research at ORNL's Spallation Neutron Source was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. NR 42 TC 10 Z9 10 U1 2 U2 48 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD MAY 10 PY 2013 VL 87 IS 18 AR 184412 DI 10.1103/PhysRevB.87.184412 PG 7 WC Physics, Condensed Matter SC Physics GA 142PP UT WOS:000318809800005 ER PT J AU Weber, AP Caruso, AN Vescovo, E Ali, ME Tarafder, K Janjua, SZ Sadowski, JT Oppeneer, PM AF Weber, A. P. Caruso, A. N. Vescovo, E. Ali, Md. E. Tarafder, K. Janjua, S. Z. Sadowski, J. T. Oppeneer, P. M. TI Magnetic coupling of Fe-porphyrin molecules adsorbed on clean and c(2 x 2) oxygen-reconstructed Co(100) investigated by spin-polarized photoemission spectroscopy SO PHYSICAL REVIEW B LA English DT Article ID ELECTRONIC-STRUCTURE; INTERFACE; STATES AB The spin-polarized electronic structure of iron octaethylporphyrin (FeOEP) molecules adsorbed on a pristine and on a c(2 x 2) oxygen-reconstructed Co(100) surface has been analyzed by means of spin-polarized photoemission spectroscopy (SPPES) and first-principles density functional theory with the on-site Coulomb repulsion U term (DFT + U) calculations with and without Van der Waals corrections. The aim is to examine the magnetic exchange mechanism between the FeOEP molecules and the Co(100) substrate in the presence or absence of the oxygen mediator. The results demonstrate that the magnetic coupling from the ferromagnetic substrate to the adsorbed FeOEP molecules is ferromagnetic, whereas, the coupling is antiferromagnetic for the FeOEP on the c(2 x 2)O/Co(100) system. Spin-resolved partial densities of states extracted from ab initio DFT + U modeling are in fairly good comparison with the electronic spectral densities seen in angle-integrated SPPES energy dispersion curves for submonolayer coverages of FeOEP. Through combined analysis of these spectra and theoretical results, we determine that hybridization of 2p orbitals of N and O with Co 3d orbitals facilitates indirect magnetic exchange interactions between Fe and Co, whereas, a direct Fe-Co interaction involving the Fe d(z)2 orbital is also found for FeOEP on Co. It is observed through SPPES that the spin polarization of the photoemission-visible molecular overlayers decreases to zero as coverage is increased beyond the submonolayer regime, indicating that only interfacial magnetic coupling is at work. Microspot low-energy electron diffraction and low-energy electronmicroscopy were performed to characterize the physical order of the molecular coverage, revealing that FeOEP structural domains are orders of magnitude greater in size on c(2 x 2)O/Co(100) than on clean Co(100), which coincides with reduced scattering from the disorder and sharper features seen in SPPES. C1 [Weber, A. P.; Caruso, A. N.; Janjua, S. Z.] Univ Missouri, Dept Phys, Kansas City, MO 64110 USA. [Weber, A. P.; Vescovo, E.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Ali, Md. E.] Ruhr Univ Bochum, Ctr Theoret Chem, D-44780 Bochum, Germany. [Ali, Md. E.; Tarafder, K.; Oppeneer, P. M.] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden. [Sadowski, J. T.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Caruso, AN (reprint author), Univ Missouri, Dept Phys, Kansas City, MO 64110 USA. EM carusoan@umkc.edu RI Ali, Md. Ehesan/A-2991-2009; Weber, Andrew/G-8148-2016 OI Weber, Andrew/0000-0002-7636-2572 FU US Department of Energy (DOE) [DE-AC02-98CH10886]; Swedish Research Council; Swedish-Indian Research Links Program; National Science Foundation [DMR-1005882]; Swedish National Infrastructure for Computing (SNIC) FX We would like to thank G. Nintzel and M. Caruso at NSLS for valuable technical assistance. Experimental work was performed at Brookhaven National Laboratory, which is supported by the US Department of Energy (DOE) under Contract No. DE-AC02-98CH10886. Financial support from the Swedish Research Council, the Swedish-Indian Research Links Program, and the National Science Foundation (Grant No. DMR-1005882) is thankfully acknowledged. Support from the Swedish National Infrastructure for Computing (SNIC) is also acknowledged. NR 30 TC 2 Z9 2 U1 3 U2 45 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 10 PY 2013 VL 87 IS 18 AR 184411 DI 10.1103/PhysRevB.87.184411 PG 8 WC Physics, Condensed Matter SC Physics GA 142PP UT WOS:000318809800004 ER PT J AU Detmold, W Meinel, S Shi, ZF AF Detmold, William Meinel, Stefan Shi, Zhifeng TI Quarkonium at nonzero isospin density SO PHYSICAL REVIEW D LA English DT Article ID SHORT-DISTANCE ANALYSIS; ANISOTROPIC LATTICE; SCATTERING LENGTHS; 2-COLOR QCD; HEAVY; SPECTRUM; STATES; SYSTEMS AB We calculate the energies of quarkonium bound states in the presence of a medium of nonzero isospin density using lattice QCD. The medium, created using a canonical (fixed isospin charge) approach, induces a reduction of the quarkonium energies. As the isospin density increases, the energy shifts first increase and then saturate. The saturation occurs at an isospin density close to that where previously a qualitative change in the behavior of the energy density of the medium has been observed, which was conjectured to correspond to a transition from a pion gas to a Bose-Einstein condensed phase. The reduction of the quarkonium energies becomes more pronounced as the heavy-quark mass is decreased, similar to the behavior seen in two-color QCD at nonzero quark chemical potential. In the process of our analysis, the eta(b)-pi and Upsilon-pi scattering phase shifts are determined at low momentum. An interpolation of the scattering lengths to the physical pion mass gives a(eta b,pi) = 0: 0025(8)(6) fm and a(Upsilon,pi) = 0.0030(9)(7) fm. C1 [Detmold, William; Meinel, Stefan] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA. [Shi, Zhifeng] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA. [Shi, Zhifeng] Jefferson Lab, Newport News, VA 23606 USA. RP Detmold, W (reprint author), MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA. OI Detmold, William/0000-0002-0400-8363 FU DOE (JSA) [DE-AC05-06OR23177]; DOE OJI Grant [DE-SC0001784]; Jeffress Memorial Trust [J-968]; DOE [DE-FG02-94ER40818] FX We thank K. Orginos and M. Savage for insightful discussions on the topic of this work and R. Edwards and B. Joo for development of the QDP++ and CHROMA software suites [51]. We acknowledge computational support from the National Energy Research Scientific Computing Center (NERSC, Office of Science of the US DOE, DE-AC02-05CH11231), and the NSF through XSEDE resources provided by NICS. This work was supported in part by DOE Grants No. DE-AC05-06OR23177 (JSA) and No. DE-FG02-94ER40818. W. D. was also supported by DOE OJI Grant No. DE-SC0001784 and Jeffress Memorial Trust, Grant No. J-968. NR 51 TC 8 Z9 8 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 10 PY 2013 VL 87 IS 9 AR 094504 DI 10.1103/PhysRevD.87.094504 PG 15 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 142BW UT WOS:000318772100010 ER PT J AU Lees, JP Poireau, V Tisserand, V Grauges, E Palano, A Eigen, G Stugu, B Brown, DN Kerth, LT Kolomensky, YG Lynch, G Koch, H Schroeder, T Asgeirsson, DJ Hearty, C Mattison, TS McKenna, JA So, RY Khan, A Blinov, VE Buzykaev, AR Druzhinin, VP Golubev, VB Kravchenko, EA Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Yushkov, AN Kirkby, D Lankford, AJ Mandelkern, M Dey, B Gary, JW Long, O Vitug, GM Campagnari, C Sevilla, MF Hong, TM Kovalskyi, D Richman, JD West, CA Eisner, AM Lockman, WS Martinez, AJ Schumm, BA Seiden, A Chao, DS Cheng, CH Echenard, B Flood, KT Hitlin, DG Ongmongkolkul, P Porter, FC Rakitin, AY Andreassen, R Huard, Z Meadows, BT Sokoloff, MD Sun, L Bloom, PC Ford, WT Gaz, A Nauenberg, U Smith, JG Wagner, SR Ayad, R Toki, WH Spaan, B Schubert, KR Schwierz, R Bernard, D Verderi, M Clark, PJ Playfer, S Bettoni, D Bozzi, C Calabrese, R Cibinetto, G Fioravanti, E Garzia, I Luppi, E Piemontese, L Santoro, V Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, MR Passaggio, S Patrignani, C Robutti, E Bhuyan, B Prasad, V Morii, M Adametz, A Uwer, U Lacker, HM Lueck, T Dauncey, PD Mallik, U Chen, C Cochran, J Meyer, WT Prell, S Rubin, AE Gritsan, AV Arnaud, N Davier, M Derkach, D Grosdidier, G Le Diberder, F Lutz, AM Malaescu, B Roudeau, P Schune, MH Stocchi, A Wormser, G Lange, DJ Wright, DM Coleman, JP Fry, JR Gabathuler, E Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Di Lodovico, F Sacco, R Sigamani, M Cowan, G Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Griessinger, K Hafner, A Prencipe, E Barlow, RJ Lafferty, GD Behn, E Cenci, R Hamilton, B Jawahery, A Roberts, DA Dallapiccola, C Cowan, R Dujmic, D Sciolla, G Cheaib, R Patel, PM Robertson, H Biassoni, P Neri, N Palombo, F Cremaldi, L Godang, R Kroeger, R Sonnek, P Summers, DJ Nguyen, X Simard, M Taras, P Nardo, G Monorchio, D Onorato, G Sciacca, C Martinelli, M Raven, G Jessop, CP LoSecco, JM Honscheid, K Kass, R Brau, J Frey, R Sinev, NB Strom, D Torrence, E Feltresi, E Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simi, G Simonetto, F Stroili, R Akar, S Ben-Haim, E Bomben, M Bonneaud, GR Briand, H Calderini, G Chauveau, J Hamon, O Leruste, P Marchiori, G Ocariz, J Sitt, S Biasini, M Manoni, E Pacetti, S Rossi, A Angelini, C Batignani, G Bettarini, S Carpinelli, M Casarosa, G Cervelli, A Forti, F Giorgi, MA Lusiani, A Oberhof, B Paoloni, E Perez, A Rizzo, G Walsh, JJ Pegna, DL Olsen, J Smith, AJS Anulli, F Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Gioi, LL Mazzoni, MA Piredda, G Bunger, C Grunberg, O Hartmann, T Leddig, T Voss, C Waldi, R Adye, T Olaiya, EO Wilson, FF Emery, S de Monchenault, GH Vasseur, G Yeche, C Aston, D Bard, DJ Benitez, JF Cartaro, C Convery, MR Dorfan, J Dubois-Felsmann, GP Dunwoodie, W Ebert, M Field, RC Fulsom, BG Gabareen, AM Graham, MT Hast, C Innes, WR Kelsey, MH Kim, P Kocian, ML Leith, DWGS Lewis, P Lindemann, D Lindquist, B Luitz, S Luth, V Lynch, HL MacFarlane, DB Muller, DR Neal, H Nelson, S Perl, M Pulliam, T Ratcliff, BN Roodman, A Salnikov, AA Schindler, RH Snyder, A Su, D Sullivan, MK Va'vra, J Wagner, AP Wang, WF Wisniewski, WJ Wittgen, M Wright, DH Wulsin, HW Ziegler, V Park, W Purohit, MV White, RM Wilson, JR Randle-Conde, A Sekula, SJ Bellis, M Burchat, PR Miyashita, TS Puccio, EMT Alam, MS Ernst, JA Gorodeisky, R Guttman, N Peimer, DR Soffer, A Spanier, SM Ritchie, JL Ruland, AM Schwitters, RF Wray, BC Izen, JM Lou, XC Bianchi, F Gamba, D Zambito, S Lanceri, L Vitale, L Martinez-Vidal, F Oyanguren, A Villanueva-Perez, P Ahmed, H Albert, J Banerjee, S Bernlochner, FU Choi, HHF King, GJ Kowalewski, R Lewczuk, MJ Nugent, IM Roney, JM Sobie, RJ Tasneem, N Gershon, TJ Harrison, PF Latham, TE Band, HR Dasu, S Pan, Y Prepost, R Wu, SL AF Lees, J. P. Poireau, V. Tisserand, V. Grauges, E. Palano, A. Eigen, G. Stugu, B. Brown, D. N. Kerth, L. T. Kolomensky, Yu. G. Lynch, G. Koch, H. Schroeder, T. Asgeirsson, D. J. Hearty, C. Mattison, T. S. McKenna, J. A. So, R. Y. Khan, A. Blinov, V. E. Buzykaev, A. R. Druzhinin, V. P. Golubev, V. B. Kravchenko, E. A. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Yushkov, A. N. Kirkby, D. Lankford, A. J. Mandelkern, M. Dey, B. Gary, J. W. Long, O. Vitug, G. M. Campagnari, C. Sevilla, M. Franco Hong, T. M. Kovalskyi, D. Richman, J. D. West, C. A. Eisner, A. M. Lockman, W. S. Martinez, A. J. Schumm, B. A. Seiden, A. Chao, D. S. Cheng, C. H. Echenard, B. Flood, K. T. Hitlin, D. G. Ongmongkolkul, P. Porter, F. C. Rakitin, A. Y. Andreassen, R. Huard, Z. Meadows, B. T. Sokoloff, M. D. Sun, L. Bloom, P. C. Ford, W. T. Gaz, A. Nauenberg, U. Smith, J. G. Wagner, S. R. Ayad, R. Toki, W. H. Spaan, B. Schubert, K. R. Schwierz, R. Bernard, D. Verderi, M. Clark, P. J. Playfer, S. Bettoni, D. Bozzi, C. Calabrese, R. Cibinetto, G. Fioravanti, E. Garzia, I. Luppi, E. Piemontese, L. Santoro, V. Baldini-Ferroli, R. Calcaterra, A. de Sangro, R. Finocchiaro, G. Patteri, P. Peruzzi, I. M. Piccolo, M. Rama, M. Zallo, A. Contri, R. Guido, E. Lo Vetere, M. Monge, M. R. Passaggio, S. Patrignani, C. Robutti, E. Bhuyan, B. Prasad, V. Morii, M. Adametz, A. Uwer, U. Lacker, H. M. Lueck, T. Dauncey, P. D. Mallik, U. Chen, C. Cochran, J. Meyer, W. T. Prell, S. Rubin, A. E. Gritsan, A. V. Arnaud, N. Davier, M. Derkach, D. Grosdidier, G. Le Diberder, F. Lutz, A. M. Malaescu, B. Roudeau, P. Schune, M. H. Stocchi, A. Wormser, G. Lange, D. J. Wright, D. M. Coleman, J. P. Fry, J. R. Gabathuler, E. Hutchcroft, D. E. Payne, D. J. Touramanis, C. Bevan, A. J. Di Lodovico, F. Sacco, R. Sigamani, M. Cowan, G. Brown, D. N. Davis, C. L. Denig, A. G. Fritsch, M. Gradl, W. Griessinger, K. Hafner, A. Prencipe, E. Barlow, R. J. Lafferty, G. D. Behn, E. Cenci, R. Hamilton, B. Jawahery, A. Roberts, D. A. Dallapiccola, C. Cowan, R. Dujmic, D. Sciolla, G. Cheaib, R. Patel, P. M. Robertson, H. Biassoni, P. Neri, N. Palombo, F. Cremaldi, L. Godang, R. Kroeger, R. Sonnek, P. Summers, D. J. Nguyen, X. Simard, M. Taras, P. De Nardo, G. Monorchio, D. Onorato, G. Sciacca, C. Martinelli, M. Raven, G. Jessop, C. P. LoSecco, J. M. Honscheid, K. Kass, R. Brau, J. Frey, R. Sinev, N. B. Strom, D. Torrence, E. Feltresi, E. Gagliardi, N. Margoni, M. Morandin, M. Posocco, M. Rotondo, M. Simi, G. Simonetto, F. Stroili, R. Akar, S. Ben-Haim, E. Bomben, M. Bonneaud, G. R. Briand, H. Calderini, G. Chauveau, J. Hamon, O. Leruste, Ph. Marchiori, G. Ocariz, J. Sitt, S. Biasini, M. Manoni, E. Pacetti, S. Rossi, A. Angelini, C. Batignani, G. Bettarini, S. Carpinelli, M. Casarosa, G. Cervelli, A. Forti, F. Giorgi, M. A. Lusiani, A. Oberhof, B. Paoloni, E. Perez, A. Rizzo, G. Walsh, J. J. Pegna, D. Lopes Olsen, J. Smith, A. J. S. Anulli, F. Faccini, R. Ferrarotto, F. Ferroni, F. Gaspero, M. Gioi, L. Li Mazzoni, M. A. Piredda, G. Buenger, C. Gruenberg, O. Hartmann, T. Leddig, T. Voss, C. Waldi, R. Adye, T. Olaiya, E. O. Wilson, F. F. Emery, S. de Monchenault, G. Hamel Vasseur, G. Yeche, Ch. Aston, D. Bard, D. J. Benitez, J. F. Cartaro, C. Convery, M. R. Dorfan, J. Dubois-Felsmann, G. P. Dunwoodie, W. Ebert, M. Field, R. C. Fulsom, B. G. Gabareen, A. M. Graham, M. T. Hast, C. Innes, W. R. Kelsey, M. H. Kim, P. Kocian, M. L. Leith, D. W. G. S. Lewis, P. Lindemann, D. Lindquist, B. Luitz, S. Luth, V. Lynch, H. L. MacFarlane, D. B. Muller, D. R. Neal, H. Nelson, S. Perl, M. Pulliam, T. Ratcliff, B. N. Roodman, A. Salnikov, A. A. Schindler, R. H. Snyder, A. Su, D. Sullivan, M. K. Va'vra, J. Wagner, A. P. Wang, W. F. Wisniewski, W. J. Wittgen, M. Wright, D. H. Wulsin, H. W. Ziegler, V. Park, W. Purohit, M. V. White, R. M. Wilson, J. R. Randle-Conde, A. Sekula, S. J. Bellis, M. Burchat, P. R. Miyashita, T. S. Puccio, E. M. T. Alam, M. S. Ernst, J. A. Gorodeisky, R. Guttman, N. Peimer, D. R. Soffer, A. Spanier, S. M. Ritchie, J. L. Ruland, A. M. Schwitters, R. F. Wray, B. C. Izen, J. M. Lou, X. C. Bianchi, F. Gamba, D. Zambito, S. Lanceri, L. Vitale, L. Martinez-Vidal, F. Oyanguren, A. Villanueva-Perez, P. Ahmed, H. Albert, J. Banerjee, Sw. Bernlochner, F. U. Choi, H. H. F. King, G. J. Kowalewski, R. Lewczuk, M. J. Nugent, I. M. Roney, J. M. Sobie, R. J. Tasneem, N. Gershon, T. J. Harrison, P. F. Latham, T. E. Band, H. R. Dasu, S. Pan, Y. Prepost, R. Wu, S. L. CA BaBar Collaboration TI Study of e(+)e(-) -> p(p)over-bar via initial-state radiation at BABAR SO PHYSICAL REVIEW D LA English DT Article ID TIME-LIKE REGION; ELECTROMAGNETIC FORM-FACTORS; HARD-PHOTON-EMISSION; BHABHA SCATTERING; NEAR-THRESHOLD; FINAL-STATES; TOTAL-ENERGY; MONTE-CARLO; DECAYS; PROTON AB The process e(+)e(-) -> p (p) over bar gamma is studied using 469 fb(-1) of integrated luminosity collected with the BABAR detector at the SLAC National Accelerator Laboratory, at an e(+)e(-) center-of-mass energy of 10.6 GeV. From the analysis of the p (p) over bar invariant mass spectrum, the energy dependence of the cross section for e(+)e(-) -> p (p) over bar is measured from threshold to 4.5 GeV. The energy dependence of the ratio of electric and magnetic form factors, vertical bar G(E)/G(M)vertical bar, and the asymmetry in the proton angular distribution are measured for p (p) over bar masses below 3 GeV. We also measure the branching fractions for the decays J/psi -> p (p) over bar and psi(2S) -> p (p) over bar are also determined. C1 [Lees, J. P.; Poireau, V.; Tisserand, V.] Univ Savoie, Lab Annecy le Vieux Phys Particules LAPP, CNRS IN2P3, F-74941 Annecy Le Vieux, France. [Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. [Palano, A.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Palano, A.] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy. [Eigen, G.; Stugu, B.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway. [Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Koch, H.; Schroeder, T.] Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany. [Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; So, R. Y.] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada. 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RP Lees, JP (reprint author), Univ Savoie, Lab Annecy le Vieux Phys Particules LAPP, CNRS IN2P3, F-74941 Annecy Le Vieux, France. RI Morandin, Mauro/A-3308-2016; Lusiani, Alberto/A-3329-2016; Di Lodovico, Francesca/L-9109-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; Monge, Maria Roberta/G-9127-2012; Forti, Francesco/H-3035-2011; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Kravchenko, Evgeniy/F-5457-2015; Calabrese, Roberto/G-4405-2015; Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Patrignani, Claudia/C-5223-2009 OI Morandin, Mauro/0000-0003-4708-4240; Lusiani, Alberto/0000-0002-6876-3288; Di Lodovico, Francesca/0000-0003-3952-2175; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Monge, Maria Roberta/0000-0003-1633-3195; Forti, Francesco/0000-0001-6535-7965; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; Calabrese, Roberto/0000-0002-1354-5400; Martinez Vidal, F*/0000-0001-6841-6035; Kolomensky, Yury/0000-0001-8496-9975; Lo Vetere, Maurizio/0000-0002-6520-4480; Lusiani, Alberto/0000-0002-6876-3288; Patrignani, Claudia/0000-0002-5882-1747 FU SLAC; U.S. Department of Energy; National Science Foundation; Natural Sciences and Engineering Research Council (Canada); Commissariat a l'Energie Atomique; Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung; Deutsche Forschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental Research on Matter (The Netherlands); Research Council of Norway; Ministry of Education and Science of the Russian Federation; Ministerio de Ciencia e Innovacion (Spain); Science and Technology Facilities Council (United Kingdom); Marie-Curie IEF program (European Union); A.P. Sloan Foundation (USA) FX We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovacion (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union) and the A.P. Sloan Foundation (USA). NR 49 TC 29 Z9 29 U1 1 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 10 PY 2013 VL 87 IS 9 AR 092005 DI 10.1103/PhysRevD.87.092005 PG 18 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 142BW UT WOS:000318772100002 ER PT J AU Lees, JP Poireau, V Tisserand, V Grauges, E Palano, A Eigen, G Stugu, B Brown, DN Kerth, LT Kolomensky, YG Lynch, G Koch, H Schroeder, T Asgeirsson, DJ Hearty, C Mattison, TS McKenna, JA So, RY Khan, A Blinov, VE Buzykaev, AR Druzhinin, VP Golubev, VB Kravchenko, EA Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Yushkov, AN Kirkby, D Lankford, AJ Mandelkern, M Atmacan, H Gary, JW Long, O Vitug, GM Campagnari, C Hong, TM Kovalskyi, D Richman, JD West, CA Eisner, AM Kroseberg, J Lockman, WS Martinez, AJ Schumm, BA Seiden, A Chao, DS Cheng, CH Echenard, B Flood, KT Hitlin, DG Ongmongkolkul, P Porter, FC Rakitin, AY Andreassen, R Huard, Z Meadows, BT Sokoloff, MD Sun, L Bloom, PC Ford, WT Gaz, A Nauenberg, U Smith, JG Wagner, SR Ayad, R Toki, WH Spaan, B Schubert, KR Schwierz, R Bernard, D Verderi, M Clark, PJ Playfer, S Bettoni, D Bozzi, C Calabrese, R Cibinetto, G Fioravanti, E Garzia, I Luppi, E Piemontese, L Santoro, V Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, MR Passaggio, S Patrignani, C Robutti, E Bhuyan, B Prasad, V Morii, M Adametz, A Uwer, U Lacker, HM Lueck, T Dauncey, PD Mallik, U Chen, C Cochran, J Meyer, WT Prell, S Rubin, AE Gritsan, AV Arnaud, N Davier, M Derkach, D Grosdidier, G Le Diberder, F Lutz, AM Malaescu, B Roudeau, P Schune, MH Stocchi, A Wormser, G Lange, DJ Wright, DM Chavez, CA Coleman, JP Fry, JR Gabathuler, E Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Di Lodovico, F Sacco, R Sigamani, M Cowan, G Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Griessinger, K Hafner, A Prencipe, E Barlow, RJ Jackson, G Lafferty, GD Behn, E Cenci, R Hamilton, B Jawahery, A Roberts, DA Dallapiccola, C Cowan, R Dujmic, D Sciolla, G Cheaib, R Lindemann, D Patel, PM Robertson, SH Biassoni, P Neri, N Palombo, F Stracka, S Cremaldi, L Godang, R Kroeger, R Sonnek, P Summers, DJ Nguyen, X Simard, M Taras, P De Nardo, G Monorchio, D Onorato, G Sciacca, C Martinelli, M Raven, G Jessop, CP LoSecco, JM Wang, WF Honscheid, K Kass, R Brau, J Frey, R Sinev, NB Strom, D Torrence, E Feltresi, E Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simi, G Simonetto, F Stroili, R Akar, S Ben-Haim, E Bomben, M Bonneaud, GR Briand, H Calderini, G Chauveau, J Hamon, O Leruste, P Marchiori, G Ocariz, J Sitt, S Biasini, M Manoni, E Pacetti, S Rossi, A Angelini, C Batignani, G Bettarini, S Carpinelli, M Casarosa, G Cervelli, A Forti, F Giorgi, MA Lusiani, A Oberhof, B Perez, A Rizzo, G Walsh, JJ Pegna, DL Olsen, J Smith, AJS Anulli, F Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Gioi, LL Mazzoni, MA Piredda, G Bunger, C Grunberg, O Hartmann, T Leddig, T Schroder, H Voss, C Waldi, R Adye, T Olaiya, EO Wilson, FF Emery, S de Monchenault, GH Vasseur, G Yeche, C Aston, D Bartoldus, R Benitez, JF Cartaro, C Convery, MR Dorfan, J Dubois-Felsmann, GP Dunwoodie, W Ebert, M Field, RC Sevilla, MF Fulsom, BG Gabareen, AM Graham, MT Grenier, P Hast, C Innes, WR Kelsey, MH Kim, P Kocian, ML Leith, DWGS Lewis, P Lindquist, B Luitz, S Luth, V Lynch, HL MacFarlane, DB Muller, DR Neal, H Nelson, S Perl, M Pulliam, T Ratcliff, BN Roodman, A Salnikov, AA Schindler, RH Snyder, A Su, D Sullivan, MK Va'vra, J Wagner, AP Wisniewski, WJ Wittgen, M Wright, DH Wulsin, HW Young, CC Ziegler, V Park, W Purohit, MV White, RM Wilson, JR Randle-Conde, A Sekula, SJ Bellis, M Burchat, PR Miyashita, TS Puccio, EMT Alam, MS Ernst, JA Gorodeisky, R Guttman, N Peimer, DR Soffer, A Spanier, SM Ritchie, JL Ruland, AM Schwitters, RF Wray, BC Izen, JM Lou, XC Bianchi, F Gamba, D Zambito, S Lanceri, L Vitale, L Martinez-Vidal, F Oyanguren, A Villanueva-Perez, P Ahmed, H Albert, J Banerjee, S Bernlochner, FU Choi, HHF King, GJ Kowalewski, R Lewczuk, MJ Nugent, IM Roney, JM Sobie, RJ Tasneem, N Gershon, TJ Harrison, PF Latham, TE Band, HR Dasu, S Pan, Y Prepost, R Wu, SL AF Lees, J. P. Poireau, V. Tisserand, V. Grauges, E. Palano, A. Eigen, G. Stugu, B. Brown, D. N. Kerth, L. T. Kolomensky, Yu. G. Lynch, G. Koch, H. Schroeder, T. Asgeirsson, D. J. Hearty, C. Mattison, T. S. McKenna, J. A. So, R. Y. Khan, A. Blinov, V. E. Buzykaev, A. R. Druzhinin, V. P. Golubev, V. B. Kravchenko, E. A. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Yushkov, A. N. Kirkby, D. Lankford, A. J. Mandelkern, M. Atmacan, H. Gary, J. W. Long, O. Vitug, G. M. Campagnari, C. Hong, T. M. Kovalskyi, D. Richman, J. D. West, C. A. Eisner, A. M. Kroseberg, J. Lockman, W. S. Martinez, A. J. Schumm, B. A. Seiden, A. Chao, D. S. Cheng, C. H. Echenard, B. Flood, K. T. Hitlin, D. G. Ongmongkolkul, P. Porter, F. C. Rakitin, A. Y. Andreassen, R. Huard, Z. Meadows, B. T. Sokoloff, M. D. Sun, L. Bloom, P. C. Ford, W. T. Gaz, A. Nauenberg, U. Smith, J. G. Wagner, S. R. Ayad, R. Toki, W. H. Spaan, B. Schubert, K. R. Schwierz, R. Bernard, D. Verderi, M. Clark, P. J. Playfer, S. Bettoni, D. Bozzi, C. Calabrese, R. Cibinetto, G. Fioravanti, E. Garzia, I. Luppi, E. Piemontese, L. Santoro, V. Baldini-Ferroli, R. Calcaterra, A. de Sangro, R. Finocchiaro, G. Patteri, P. Peruzzi, I. M. Piccolo, M. Rama, M. Zallo, A. Contri, R. Guido, E. Lo Vetere, M. Monge, M. R. Passaggio, S. Patrignani, C. Robutti, E. Bhuyan, B. Prasad, V. Morii, M. Adametz, A. Uwer, U. Lacker, H. M. Lueck, T. Dauncey, P. D. Mallik, U. Chen, C. Cochran, J. Meyer, W. T. Prell, S. Rubin, A. E. Gritsan, A. V. Arnaud, N. Davier, M. Derkach, D. Grosdidier, G. Le Diberder, F. Lutz, A. M. Malaescu, B. Roudeau, P. Schune, M. H. Stocchi, A. Wormser, G. Lange, D. J. Wright, D. M. Chavez, C. A. Coleman, J. P. Fry, J. R. Gabathuler, E. Hutchcroft, D. E. Payne, D. J. Touramanis, C. Bevan, A. J. Di Lodovico, F. Sacco, R. Sigamani, M. Cowan, G. Brown, D. N. Davis, C. L. Denig, A. G. Fritsch, M. Gradl, W. Griessinger, K. Hafner, A. Prencipe, E. Barlow, R. J. Jackson, G. Lafferty, G. D. Behn, E. Cenci, R. Hamilton, B. Jawahery, A. Roberts, D. A. Dallapiccola, C. Cowan, R. Dujmic, D. Sciolla, G. Cheaib, R. Lindemann, D. Patel, P. M. Robertson, S. H. Biassoni, P. Neri, N. Palombo, F. Stracka, S. Cremaldi, L. Godang, R. Kroeger, R. Sonnek, P. Summers, D. J. Nguyen, X. Simard, M. Taras, P. De Nardo, G. Monorchio, D. Onorato, G. Sciacca, C. Martinelli, M. Raven, G. Jessop, C. P. LoSecco, J. M. Wang, W. F. Honscheid, K. Kass, R. Brau, J. Frey, R. Sinev, N. B. Strom, D. Torrence, E. Feltresi, E. Gagliardi, N. Margoni, M. Morandin, M. Posocco, M. Rotondo, M. Simi, G. Simonetto, F. Stroili, R. Akar, S. Ben-Haim, E. Bomben, M. Bonneaud, G. R. Briand, H. Calderini, G. Chauveau, J. Hamon, O. Leruste, Ph. Marchiori, G. Ocariz, J. Sitt, S. Biasini, M. Manoni, E. Pacetti, S. Rossi, A. Angelini, C. Batignani, G. Bettarini, S. Carpinelli, M. Casarosa, G. Cervelli, A. Forti, F. Giorgi, M. A. Lusiani, A. Oberhof, B. Perez, A. Rizzo, G. Walsh, J. J. Pegna, D. Lopes Olsen, J. Smith, A. J. S. Anulli, F. Faccini, R. Ferrarotto, F. Ferroni, F. Gaspero, M. Gioi, L. Li Mazzoni, M. A. Piredda, G. Buenger, C. Gruenberg, O. Hartmann, T. Leddig, T. Schroeder, H. Voss, C. Waldi, R. Adye, T. Olaiya, E. O. Wilson, F. F. Emery, S. de Monchenault, G. Hamel Vasseur, G. Yeche, Ch. Aston, D. Bartoldus, R. Benitez, J. F. Cartaro, C. Convery, M. R. Dorfan, J. Dubois-Felsmann, G. P. Dunwoodie, W. Ebert, M. Field, R. C. Sevilla, M. Franco Fulsom, B. G. Gabareen, A. M. Graham, M. T. Grenier, P. Hast, C. Innes, W. R. Kelsey, M. H. Kim, P. Kocian, M. L. Leith, D. W. G. S. Lewis, P. Lindquist, B. Luitz, S. Luth, V. Lynch, H. L. MacFarlane, D. B. Muller, D. R. Neal, H. Nelson, S. Perl, M. Pulliam, T. Ratcliff, B. N. Roodman, A. Salnikov, A. A. Schindler, R. H. Snyder, A. Su, D. Sullivan, M. K. Va'vra, J. Wagner, A. P. Wisniewski, W. J. Wittgen, M. Wright, D. H. Wulsin, H. W. Young, C. C. Ziegler, V. Park, W. Purohit, M. V. White, R. M. Wilson, J. R. Randle-Conde, A. Sekula, S. J. Bellis, M. Burchat, P. R. Miyashita, T. S. Puccio, E. M. T. Alam, M. S. Ernst, J. A. Gorodeisky, R. Guttman, N. Peimer, D. R. Soffer, A. Spanier, S. M. Ritchie, J. L. Ruland, A. M. Schwitters, R. F. Wray, B. C. Izen, J. M. Lou, X. C. Bianchi, F. Gamba, D. Zambito, S. Lanceri, L. Vitale, L. Martinez-Vidal, F. Oyanguren, A. Villanueva-Perez, P. Ahmed, H. Albert, J. Banerjee, Sw. Bernlochner, F. U. Choi, H. H. F. King, G. J. Kowalewski, R. Lewczuk, M. J. Nugent, I. M. Roney, J. M. Sobie, R. J. Tasneem, N. Gershon, T. J. Harrison, P. F. Latham, T. E. Band, H. R. Dasu, S. Pan, Y. Prepost, R. Wu, S. L. CA BaBar Collaboration TI Study of the decay (B)over-bar(0) -> Lambda(+)(c) (p)over-bar pi(+) pi(-) and its intermediate states SO PHYSICAL REVIEW D LA English DT Article AB We study the decay (B) over bar (0) -> Lambda(+)(c) (p) over bar pi(+) pi(-), reconstructing the Lambda(+)(c) baryon in the pK(-) pi(+) mode, using a data sample of 467 X 10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II storage rings at SLAC. We measure branching fractions for decays with intermediate Sigma(c) baryons to be B[(B) over bar (0) -> Sigma(c)(2455)(++) (p) over bar (-) pi(-)] = (21.3 +/- 1.0 +/- 1.0 +/- 5.5) X 10(-5), B[(B) over bar (0) -> Sigma(c)(2520)(++) (p) over bar (-) pi(-)] = (11.5 +/- 1.0 +/- 0.5 +/- 3.0) X 10(-5), B[(B) over bar (0) -> Sigma(c)(2455)(0) (p) over bar (-) pi(-)] - (9.1 +/- 0.7 +/- 0.4 +/- 2.4) X 10(-5), and B[(B) over bar (0) -> Sigma(c)(2520)(++) (p) over bar (-) pi(-)] - (2.2 +/- 0.7 +/- 0.1 +/- 0.6) X 10(-5), where the uncertainties are statistical, systematic, and due to the uncertainty on the Lambda(+)(c) -> pK(-) pi(+) branching fraction, respectively. For decays without Sigma(c)(2455) or Sigma(c)(2520) resonances, we measure B[(B) over bar (0) -> Lambda(+)(c) (p) over bar pi(+) pi(-)](non-Sigma c) =(79 +/- 4 +/- 4 +/- 20) X 10(-5). The total branching fraction is determined to be B[(B) over bar (0) -> Lambda(+)(c) (p) over bar pi(+) pi(-)](total) = (123 +/- 5 +/- 7 +/- 32) X 10(-5). We examine multibody mass combinations in the resonant three-particle Sigma(c) final states and in the four-particle Lambda(+)(c) (p) over bar pi(+) pi(-) final state, and observe different characteristics for the (p) over bar pi combination in neutral versus doubly charged Sigma(c) decays. C1 [Lees, J. P.; Poireau, V.; Tisserand, V.] Univ Savoie, CNRS IN2P3, Lab Annecy le Vieux Phys Particules LAPP, F-74941 Annecy Le Vieux, France. [Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. [Palano, A.] INFN Sez Bari, I-70126 Bari, Italy. [Palano, A.] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy. [Eigen, G.; Stugu, B.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway. [Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Brown, D. 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A.; Seiden, A.] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA. [Chao, D. S.; Cheng, C. H.; Echenard, B.; Flood, K. T.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.] CALTECH, Pasadena, CA 91125 USA. [Andreassen, R.; Huard, Z.; Meadows, B. T.; Sokoloff, M. D.; Sun, L.] Univ Cincinnati, Cincinnati, OH 45221 USA. [Bloom, P. C.; Ford, W. T.; Gaz, A.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA. [Ayad, R.; Toki, W. H.] Colorado State Univ, Ft Collins, CO 80523 USA. [Spaan, B.] Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany. [Schubert, K. R.; Schwierz, R.] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany. [Bernard, D.; Verderi, M.] Ecole Polytech, CNRS IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France. [Clark, P. J.; Playfer, S.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland. 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J.; Touramanis, C.] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England. [Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.] Univ London, London E1 4NS, England. [Cowan, G.] Univ London, Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England. [Brown, D. N.; Davis, C. L.] Univ Louisville, Louisville, KY 40292 USA. [Denig, A. G.; Fritsch, M.; Gradl, W.; Griessinger, K.; Hafner, A.; Prencipe, E.] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany. [Barlow, R. J.; Jackson, G.; Lafferty, G. D.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Behn, E.; Cenci, R.; Hamilton, B.; Jawahery, A.; Roberts, D. A.] Univ Maryland, College Pk, MD 20742 USA. [Dallapiccola, C.] Univ Massachusetts, Amherst, MA 01003 USA. [Cowan, R.; Dujmic, D.; Sciolla, G.] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA. [Cheaib, R.; Lindemann, D.; Patel, P. M.; Robertson, S. H.] McGill Univ, Montreal, PQ H3A 2T8, Canada. [Biassoni, P.; Neri, N.; Palombo, F.; Stracka, S.] INFN Sez Milano, I-20133 Milan, Italy. [Biassoni, P.; Palombo, F.; Stracka, S.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy. [Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.] Univ Mississippi, University, MS 38677 USA. [Nguyen, X.; Simard, M.; Taras, P.] Univ Montreal, Montreal, PQ H3C 3J7, Canada. [De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.] INFN Sez Napoli, I-80126 Naples, Italy. [De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.] Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy. [Martinelli, M.; Raven, G.] NIKHEF, Natl Inst Nucl Phys & High Energy Phys, NL-1009 DB Amsterdam, Netherlands. [Jessop, C. P.; LoSecco, J. M.; Wang, W. F.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Honscheid, K.; Kass, R.] Ohio State Univ, Columbus, OH 43210 USA. [Brau, J.; Frey, R.; Sinev, N. B.; Strom, D.; Torrence, E.] Univ Oregon, Eugene, OR 97403 USA. [Feltresi, E.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simi, G.; Simonetto, F.; Stroili, R.] INFN Sez Padova, I-35131 Padua, Italy. [Feltresi, E.; Gagliardi, N.; Margoni, M.; Simonetto, F.; Stroili, R.] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy. [Akar, S.; Ben-Haim, E.; Bomben, M.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph.; Marchiori, G.; Ocariz, J.; Sitt, S.] Univ Paris 07, Univ Paris 06, CNRS IN2P3, Lab Phys Nucl & Hautes Energies, F-75252 Paris, France. [Biasini, M.; Manoni, E.; Pacetti, S.; Rossi, A.] INFN Sez Perugia, I-06100 Perugia, Italy. [Peruzzi, I. M.; Biasini, M.; Manoni, E.; Pacetti, S.; Rossi, A.] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy. [Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Oberhof, B.; Perez, A.; Rizzo, G.; Walsh, J. J.] INFN Sez Pisa, I-56127 Pisa, Italy. [Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Oberhof, B.; Rizzo, G.] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy. [Lusiani, A.] Scuola Normale Super Pisa, I-56127 Pisa, Italy. [Pegna, D. Lopes; Olsen, J.; Smith, A. J. S.] Princeton Univ, Princeton, NJ 08544 USA. [Anulli, F.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Gioi, L. Li; Mazzoni, M. A.; Piredda, G.] INFN Sez Roma, I-00185 Rome, Italy. [Faccini, R.; Ferroni, F.; Gaspero, M.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy. [Buenger, C.; Gruenberg, O.; Hartmann, T.; Leddig, T.; Schroeder, H.; Voss, C.; Waldi, R.] Univ Rostock, D-18051 Rostock, Germany. [Adye, T.; Olaiya, E. O.; Wilson, F. F.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Emery, S.; de Monchenault, G. Hamel; Vasseur, G.; Yeche, Ch.] CEA, Irfu, SPP, Ctr Saclay, F-91191 Gif Sur Yvette, France. [Aston, D.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Ebert, M.; Field, R. C.; Sevilla, M. Franco; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Lewis, P.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.; MacFarlane, D. B.; Muller, D. R.; Neal, H.; Nelson, S.; Perl, M.; Pulliam, T.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Schindler, R. H.; Snyder, A.; Su, D.; Sullivan, M. K.; Va'vra, J.; Wagner, A. P.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Young, C. C.; Ziegler, V.] SLAC Natl Accelerator Lab, Stanford, CA 94309 USA. [Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.] Univ S Carolina, Columbia, SC 29208 USA. [Randle-Conde, A.; Sekula, S. J.] So Methodist Univ, Dallas, TX 75275 USA. [Bellis, M.; Burchat, P. R.; Miyashita, T. S.; Puccio, E. M. T.] Stanford Univ, Stanford, CA 94305 USA. [Alam, M. S.; Ernst, J. A.] SUNY Albany, Albany, NY 12222 USA. [Gorodeisky, R.; Guttman, N.; Peimer, D. R.; Soffer, A.] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel. [Spanier, S. M.] Univ Tennessee, Knoxville, TN 37996 USA. [Ritchie, J. L.; Ruland, A. M.; Schwitters, R. F.; Wray, B. C.] Univ Texas Austin, Austin, TX 78712 USA. [Izen, J. M.; Lou, X. C.] Univ Texas Dallas, Richardson, TX 75083 USA. [Bianchi, F.; Gamba, D.; Zambito, S.] INFN Sez Torino, I-10125 Turin, Italy. [Bianchi, F.; Gamba, D.; Zambito, S.] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy. [Lanceri, L.; Vitale, L.] INFN Sez Trieste, I-34127 Trieste, Italy. [Lanceri, L.; Vitale, L.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy. [Martinez-Vidal, F.; Oyanguren, A.; Villanueva-Perez, P.] Univ Valencia CSIC, IFIC, E-46071 Valencia, Spain. [Ahmed, H.; Albert, J.; Banerjee, Sw.; Bernlochner, F. U.; Choi, H. H. F.; King, G. J.; Kowalewski, R.; Lewczuk, M. J.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.; Tasneem, N.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Latham, T. E.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Dasu, S.; Pan, Y.; Prepost, R.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. RP Lees, JP (reprint author), Univ Savoie, CNRS IN2P3, Lab Annecy le Vieux Phys Particules LAPP, F-74941 Annecy Le Vieux, France. RI Lusiani, Alberto/A-3329-2016; Morandin, Mauro/A-3308-2016; Stracka, Simone/M-3931-2015; Di Lodovico, Francesca/L-9109-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; Patrignani, Claudia/C-5223-2009; Monge, Maria Roberta/G-9127-2012; Forti, Francesco/H-3035-2011; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Kravchenko, Evgeniy/F-5457-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Calabrese, Roberto/G-4405-2015; Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015 OI Lusiani, Alberto/0000-0002-6876-3288; Morandin, Mauro/0000-0003-4708-4240; Stracka, Simone/0000-0003-0013-4714; Di Lodovico, Francesca/0000-0003-3952-2175; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Patrignani, Claudia/0000-0002-5882-1747; Monge, Maria Roberta/0000-0003-1633-3195; Forti, Francesco/0000-0001-6535-7965; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; Lo Vetere, Maurizio/0000-0002-6520-4480; Lusiani, Alberto/0000-0002-6876-3288; Calabrese, Roberto/0000-0002-1354-5400; Martinez Vidal, F*/0000-0001-6841-6035; Kolomensky, Yury/0000-0001-8496-9975 FU SLAC; US Department of Energy; National Science Foundation; Natural Sciences and Engineering Research Council (Canada); Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung; Deutsche Forschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental Research on Matter (The Netherlands); Research Council of Norway; Ministry of Education and Science of the Russian Federation; Ministerio de Economia y Competitividad (Spain); Science and Technology Facilities Council (United Kingdom); Marie-Curie IEF program (European Union); A.P. Sloan Foundation (USA) FX We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the US Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Economia y Competitividad (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union) and the A.P. Sloan Foundation (USA). NR 20 TC 1 Z9 1 U1 1 U2 18 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 10 PY 2013 VL 87 IS 9 AR 092004 DI 10.1103/PhysRevD.87.092004 PG 17 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 142BW UT WOS:000318772100001 ER PT J AU Owens, JF Accardi, A Melnitchouk, W AF Owens, J. F. Accardi, A. Melnitchouk, W. TI Global parton distributions with nuclear and finite-Q(2) corrections SO PHYSICAL REVIEW D LA English DT Article ID DEUTERON STRUCTURE FUNCTIONS; DEEP-INELASTIC-SCATTERING; HIGH STATISTICS MEASUREMENT; LEPTON CHARGE ASYMMETRY; P(P)OVER-BAR COLLISIONS; LARGE-X; MUON SCATTERING; ISOLATED-PHOTON; HIGH Q2; PROTON AB We present three new sets of next-to-leading order parton distribution functions (PDFs) determined by global fits to a wide variety of data for hard scattering processes. The analysis includes target mass and higher twist corrections needed for the description of deep inelastic scattering data at large x and low Q(2), and nuclear corrections for deuterium targets. The PDF sets correspond to three different models for the nuclear effects, and provide a more realistic uncertainty range for the d quark PDF, in particular, compared with previous fits. We describe the PDF error sets for each choice of the nuclear corrections, and provide a user interface for utilizing the distributions. C1 [Owens, J. F.] Florida State Univ, Tallahassee, FL 32306 USA. [Accardi, A.] Hampton Univ, Hampton, VA 23668 USA. [Accardi, A.; Melnitchouk, W.] Jefferson Lab, Newport News, VA 23606 USA. RP Owens, JF (reprint author), Florida State Univ, Tallahassee, FL 32306 USA. FU DOE [DE-AC05-06OR23177, DE-FG02-97ER41922, DE-SC0008791] FX We thank M. E. Christy, P. Jimenez-Delgado, C. E. Keppel, and P. Monaghan for helpful discussions, and M. E. Christy and S. Malace for assistance with the parametrizations of the nucleon off-shell corrections used here. This work was supported by the DOE Contract No. DE-AC05-06OR23177, under which Jefferson Science Associates, LLC operates Jefferson Lab. The work of J. F. O. and A. A. was supported in part by DOE Contracts No. DE-FG02-97ER41922 and No. DE-SC0008791, respectively. NR 95 TC 79 Z9 79 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 10 PY 2013 VL 87 IS 9 AR 094012 DI 10.1103/PhysRevD.87.094012 PG 13 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 142BW UT WOS:000318772100009 ER PT J AU Zurek, WH AF Zurek, Wojciech H. TI Wave-packet collapse and the core quantum postulates: Discreteness of quantum jumps from unitarity, repeatability, and actionable information SO PHYSICAL REVIEW A LA English DT Article ID DECOHERENCE; STATES; MECHANICS; CANNOT AB An unknown quantum state of a single system cannot be discovered, as a measured system is reprepared-it jumps into an eigenstate of the measured observable. This impossibility of finding the quantum state and other symptoms usually blamed on wave-packet collapse follow (as was recently demonstrated for pure states of measured systems) from unitarity (which does not, however, allow for a literal collapse) and from the repeatability of measurements: Continuous unitary evolution and repeatability suffice to establish the discreteness that underlies quantum jumps. Here we consider mixed states of a macroscopic, open system (such as an apparatus), and we allow its microscopic state to change when, e.g., measured by an observer, provided that its salient features remain unchanged and that observers regard macroscopic state of the pointer as representing the same record. We conclude that repeatably accessible states of macroscopic systems (such as the states of the apparatus pointer) must correspond to orthogonal subspaces in the Hilbert space. The symmetry breaking we exhibit defies the egalitarian quantum superposition principle and unitary symmetry of the Hilbert space, as it singles out preferred subspaces. We conclude that the resulting discreteness (which underlies quantum jumps) emerges from the continuity of the core quantum postulates plus repeatability also in macroscopic and open-but ultimately quantum-systems such as measuring devices accessed by observers, where (in contrast with pure states of microsystems) repeatability is paramount. C1 [Zurek, Wojciech H.] LANL, Div Theory, Los Alamos, NM 87545 USA. [Zurek, Wojciech H.] Santa Fe Inst, Santa Fe, NM 87501 USA. RP Zurek, WH (reprint author), LANL, Div Theory, Mail Stop B213, Los Alamos, NM 87545 USA. FU DOE through a LDRD grant at Los Alamos; John Templeton Foundation FX This research was supported in part by DOE through a LDRD grant at Los Alamos, and in part by the John Templeton Foundation. Stimulating discussions with Jess Riedel, Alex Streltsov, and Michael Zwolak are greatly appreciated. NR 41 TC 11 Z9 11 U1 1 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9926 EI 2469-9934 J9 PHYS REV A JI Phys. Rev. A PD MAY 10 PY 2013 VL 87 IS 5 AR 052111 DI 10.1103/PhysRevA.87.052111 PG 6 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 142PD UT WOS:000318808600002 ER PT J AU Baek, SH Hammel, PC Hucker, M Buchner, B Ammerahl, U Revcolevschi, A Suh, BJ AF Baek, S. -H. Hammel, P. C. Huecker, M. Buechner, B. Ammerahl, U. Revcolevschi, A. Suh, B. J. TI Structural transitions in a doped lanthanum cuprate SO PHYSICAL REVIEW B LA English DT Article ID TEMPERATURE TETRAGONAL PHASE; SUPERCONDUCTIVITY; LA2-XSRXCUO4; STRIPES; LA2-XBAXCUO4; DYNAMICS; LA2CUO4; ORDER AB La-139 NMR and relaxation measurements have been performed on La1.8-xEu0.2SrxCuO4 (x = 0.13 and 0.2) single crystals. The temperature dependence of the 139La NMR spectra in all the structural phases [high-temperature tetragonal (HTT) -> low-temperature orthorhombic (LTO) -> low-temperature tetragonal (LTT)] reveals the nonvanishing tilt angle of the CuO6 octahedra in the HTT phase, opposed to the case of La2-xSrxCuO4 where the tilt angle disappears immediately above the transition. Since La-139 relaxation data provide evidence of the thermodynamic critical fluctuations associated with the structural phase transitions, HTT -> LTO and LTO -> LTT, we conclude that the structural transitions in Eu-doped La2-xSrxCuO4 should be of the order-disorder type rather than of the displacive type observed in La2-xSrxCuO4. The change of the nature of the structural transitions caused by doping with Eu appears to be consistent with the LTO -> LTT transition that is absent in La2-xSrxCuO4. C1 [Baek, S. -H.; Buechner, B.] IFW Dresden, Inst Solid State Res, D-01171 Dresden, Germany. [Hammel, P. C.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Huecker, M.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Buechner, B.] Tech Univ Dresden, Inst Festkorperphys, D-01062 Dresden, Germany. [Ammerahl, U.; Revcolevschi, A.] Univ Paris 11, Lab Chim Solides, F-91405 Orsay, France. [Suh, B. J.] Catholic Univ Korea, Dept Phys, Puchon 420743, South Korea. RP Suh, BJ (reprint author), Catholic Univ Korea, Dept Phys, Puchon 420743, South Korea. EM bjsuh@catholic.ac.kr RI Hammel, P Chris/O-4845-2014; Baek, Seung-Ho/F-4733-2011; Buchner, Bernd/E-2437-2016 OI Hammel, P Chris/0000-0002-4138-4798; Baek, Seung-Ho/0000-0002-0059-8255; Buchner, Bernd/0000-0002-3886-2680 FU Basic Science Research Program through the National Research Foundation of Korea (NRF); Ministry of Education, Science, and Technology [NRF-2008-314-C00123]; US DOE; Catholic University of Korea; Office of Science, US Department of Energy [DE-AC02-98CH10886] FX This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology (NRF-2008-314-C00123). This work was supported in part by the US DOE. One of authors (B.J.S.) acknowledges the support from the 2008 Research Fund of the Catholic University of Korea. M.H. acknowledges support by the Office of Science, US Department of Energy under Contract No. DE-AC02-98CH10886. NR 27 TC 6 Z9 6 U1 2 U2 24 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD MAY 10 PY 2013 VL 87 IS 17 AR 174505 DI 10.1103/PhysRevB.87.174505 PG 5 WC Physics, Condensed Matter SC Physics GA 142PI UT WOS:000318809100002 ER PT J AU Ren, J Sinitsyn, NA AF Ren, Jie Sinitsyn, N. A. TI Braid group and topological phase transitions in nonequilibrium stochastic dynamics SO PHYSICAL REVIEW E LA English DT Article ID COUNTING STATISTICS; INSULATORS; MOLECULES; SYSTEMS AB We show that distinct topological phases of the band structure of a non-Hermitian Hamiltonian can be classified with elements of the braid group. As the proof of principle, we consider the non-Hermitian evolution of the statistics of nonequilibrium stochastic currents. We show that topologically nontrivial phases have detectable properties, including the emergence of decaying oscillations of parity and state probabilities, and discontinuities in the steady state statistics of currents. C1 [Ren, Jie; Sinitsyn, N. A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Ren, J (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM renjie@lanl.gov RI Ren, Jie/G-5314-2010 OI Ren, Jie/0000-0003-2806-7226 FU National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]; LDRD Program at LANL FX This work was supported by the National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396, and the LDRD Program at LANL. NR 44 TC 4 Z9 4 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 J9 PHYS REV E JI Phys. Rev. E PD MAY 10 PY 2013 VL 87 IS 5 AR 050101 DI 10.1103/PhysRevE.87.050101 PG 5 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 142QH UT WOS:000318811600001 PM 23767466 ER PT J AU Chun, J Pierce, DA Pokorny, R Hrma, P AF Chun, Jaehun Pierce, David A. Pokorny, Richard Hrma, Pavel TI Cold-cap reactions in vitrification of nuclear waste glass: Experiments and modeling SO THERMOCHIMICA ACTA LA English DT Article DE Cold-cap reactions; Kinetic model; Kissinger method; Nuclear waste glass melting; Heat capacity; Simultaneous differential scanning; calorimetry-thermogravimetry ID DIFFERENTIAL SCANNING CALORIMETRY; THERMAL-ANALYSIS; MELTING ACCELERANTS; SYSTEMS; BATCHES; SILICA AB Cold-cap reactions are multiple overlapping reactions that occur in the waste-glass melter during the vitrification process when the melter feed is being converted to molten glass. In this study, we used simultaneous differential scanning calorimetry thermogravimetry (DSC-TGA) to investigate cold-cap reactions in a high-alumina high-level waste melter feed. To separate the reaction heat from both the heat associated with the heat capacity of the feed and experimental artifacts, we employed the run/rerun method, which enabled us to define the degree of conversion based on the reaction heat and to estimate the heat capacity of the reacting feed. Assuming that the reactions are nearly independent and can be approximated by an nth order kinetic model, we obtained the kinetic parameters using the Kissinger method combined with least squares analysis. The resulting mathematical simulation of the cold-cap reactions provides a key element for the development of an advanced cold-cap model. (C) 2013 Elsevier B.V. All rights reserved. C1 [Chun, Jaehun; Pierce, David A.; Hrma, Pavel] Pacific NW Natl Lab, Richland, WA 99352 USA. [Pokorny, Richard] Inst Chem Technol, Dept Chem Engn, CR-16628 Prague 6, Czech Republic. [Hrma, Pavel] Pohang Univ Sci & Technol, Div Adv Nucl Engn, Pohang, South Korea. RP Hrma, P (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM pavelhrma@postech.ac.kr FU U.S. Department of Energy Federal Project Office Engineering Division for the Hanford Tank Waste Treatment and Immobilization Plant; World Class University program through the National Research Foundation of Korea; Ministry of Education, Science and Technology [R31-30005]; specific university research [MSMT No 21/2012]; U.S. Department of Energy [DE-AC05-76RL01830] FX The authors gratefully acknowledge the financial support of the U.S. Department of Energy Federal Project Office Engineering Division for the Hanford Tank Waste Treatment and Immobilization Plant. Pavel Hrma was supported also by the World Class University program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (R31-30005). Richard Pokorny acknowledges financial support from specific university research (MSMT No 21/2012). The authors greatly appreciate Albert Kruger for his assistance and guidance, and Dong-Sang Kim and Ekkehard Post for insightful discussion and suggestions. Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the U.S. Department of Energy under contract DE-AC05-76RL01830. NR 30 TC 14 Z9 15 U1 0 U2 17 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0040-6031 J9 THERMOCHIM ACTA JI Thermochim. Acta PD MAY 10 PY 2013 VL 559 BP 32 EP 39 DI 10.1016/j.tca.2013.02.016 PG 8 WC Thermodynamics; Chemistry, Analytical; Chemistry, Physical SC Thermodynamics; Chemistry GA 141UG UT WOS:000318751400004 ER PT J AU Gray, WJ Scannapieco, E AF Gray, William J. Scannapieco, Evan TI THERMAL AND CHEMICAL EVOLUTION OF COLLAPSING FILAMENTS SO ASTROPHYSICAL JOURNAL LA English DT Article DE galaxies: abundances; galaxies: dwarf; galaxies: evolution; galaxies: individual (NGC 5253); galaxies: starburst; intergalactic medium ID LARGE-SCALE STRUCTURE; HIGH-VELOCITY CLOUDS; STARBURST GALAXY NGC-5253; BLUE COMPACT GALAXIES; LAMBDA-CDM UNIVERSE; DARK-MATTER HALOES; MOLECULAR GAS; STAR-FORMATION; INTERSTELLAR-MEDIUM; GALACTIC FOUNTAINS AB Intergalactic filaments form the foundation of the cosmic web that connect galaxies together, and provide an important reservoir of gas for galaxy growth and accretion. Here we present very high resolution two-dimensional simulations of the thermal and chemical evolution of such filaments, making use of a 32 species chemistry network that tracks the evolution of key molecules formed from hydrogen, oxygen, and carbon. We study the evolution of filaments over a wide range of parameters including the initial density, initial temperature, strength of the dissociating UV background, and metallicity. In low-redshift, Z approximate to 0.1 Z(circle dot) filaments, the evolution is determined completely by the initial cooling time. If this is sufficiently short, the center of the filament always collapses to form a dense, cold core containing a substantial fraction of molecules. In high-redshift, Z = 10(-3) Z(circle dot) filaments, the collapse proceeds much more slowly. This is mostly due to the lower initial temperatures, which lead to a much more modest increase in density before the atomic cooling limit is reached, making subsequent molecular cooling much less efficient. Finally, we study how the gravitational potential from a nearby dwarf galaxy affects the collapse of the filament and compare this to NGC 5253, a nearby starbursting dwarf galaxy thought to be fueled by the accretion of filament gas. In contrast to our fiducial case, a substantial density peak forms at the center of the potential. This peak evolves faster than the rest of the filament due to the increased rate at which chemical species form and cooling occurs. We find that we achieve similar accretion rates as NGC 5253 but our two-dimensional simulations do not recover the formation of the giant molecular clouds that are seen in radio observations. C1 [Gray, William J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Scannapieco, Evan] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA. RP Gray, WJ (reprint author), Lawrence Livermore Natl Lab, POB 808,L-038, Livermore, CA 94550 USA. FU NASA [NNX09AD106]; National Science Foundation [AST 11-03608]; Center for Astrophysical Thermonuclear Flashes at the University of Chicago; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX The authors would like to thank Jean Turner for pointing us to NGC 5253 and its accretion streamer and to Cody Raskin and Mark Richardson for useful conversations. We acknowledge support from NASA under theory Grant No. NNX09AD106 and from the National Science Foundation under grant AST 11-03608. All simulations were conducted on the "Saguaro" cluster at the Arizona State University Advanced Computing Center, using the FLASH code, a product of the DOE ASC/Alliances funded Center for Astrophysical Thermonuclear Flashes at the University of Chicago. Figures 2-9 were created using the yt analysis package (Turk et al. 2011). This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 99 TC 7 Z9 7 U1 0 U2 7 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD MAY 10 PY 2013 VL 768 IS 2 AR 174 DI 10.1088/0004-637X/768/2/174 PG 16 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 134QK UT WOS:000318228400077 ER PT J AU Kwan, J Bhattacharya, S Heitmann, K Habib, S AF Kwan, Juliana Bhattacharya, Suman Heitmann, Katrin Habib, Salman TI COSMIC EMULATION: THE CONCENTRATION-MASS RELATION FOR wCDM UNIVERSES SO ASTROPHYSICAL JOURNAL LA English DT Article DE large-scale structure of universe; methods: statistical ID MATTER POWER SPECTRUM; HALO CONCENTRATIONS; DENSITY PROFILES; LENSING ANALYSIS; COSMOLOGY; SIMULATION; I.; STATISTICS; DEPENDENCE; EVOLUTION AB The concentration-mass relation for dark matter-dominated halos is one of the essential results expected from a theory of structure formation. We present a simple prediction scheme, a cosmic emulator, for the concentration-mass (c-M) relation as a function of cosmological parameters for wCDM models. The emulator is constructed from 37 individual models, with three nested N-body gravity-only simulations carried out for each model. The mass range covered by the emulator is 2 x 10(12) M-circle dot < M < 10(15) M-circle dot with a corresponding redshift range of z = 0-1. Over this range of mass and redshift, as well as the variation of cosmological parameters studied, the mean halo concentration varies from c similar to 2 to c similar to 8. The distribution of the concentration at fixed mass is Gaussian with a standard deviation of one-third of the mean value, almost independent of cosmology, mass, and redshift over the ranges probed by the simulations. We compare results from the emulator with previously derived heuristic analytic fits for the c-M relation, finding that they underestimate the halo concentration at high masses. Using the emulator to investigate the cosmology dependence of the c-M relation over the currently allowable range of values, we find-not surprisingly-that sigma(8) and omega(m) influence it considerably, but also that the dark energy equation-of-state parameter w has a substantial effect. In general, the concentration of lower-mass halos is more sensitive to changes in cosmological parameters as compared to cluster mass halos. The c-M emulator is publicly available from http://www.hep.anl.gov/cosmology/CosmicEmu. C1 [Kwan, Juliana; Bhattacharya, Suman; Heitmann, Katrin; Habib, Salman] Argonne Natl Lab, Div High Energy Phys, Lemont, IL 60439 USA. [Bhattacharya, Suman; Heitmann, Katrin; Habib, Salman] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Heitmann, Katrin; Habib, Salman] Argonne Natl Lab, Div Math & Comp Sci, Lemont, IL 60439 USA. [Heitmann, Katrin; Habib, Salman] Univ Chicago, Computat Inst, Chicago, IL 60637 USA. RP Kwan, J (reprint author), Argonne Natl Lab, Div High Energy Phys, Lemont, IL 60439 USA. FU U.S. Department of Energy [DE-AC02-06CH11357]; DOE [W-7405-ENG-36]; NASA; Office of Science of the U.S. Department of Energy [DE-AC02-06CH11357, DE-AC02-05CH11231] FX The work at Argonne National Laboratory was supported under U.S. Department of Energy contract DE-AC02-06CH11357. Part of this research was supported by the DOE under contract W-7405-ENG-36. J.K. and K. H. were partially supported by NASA. We are indebted to Charlie Nakhleh for providing an example code for building cosmic emulators and Earl Lawrence and Dave Higdon for many useful and entertaining discussions on the topic. We thank Volker Springel for making GADGET-2 publicly available. We are grateful for computing time granted to us as part of the Los Alamos Open Supercomputing Initiative. This research used resources of the Argonne Leadership Computing Facility at Argonne National Laboratory and the National Energy Research Scientific Computing Center, which are supported by the Office of Science of the U.S. Department of Energy under contracts DE-AC02-06CH11357 and DE-AC02-05CH11231, respectively. NR 39 TC 17 Z9 18 U1 0 U2 9 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD MAY 10 PY 2013 VL 768 IS 2 AR 123 DI 10.1088/0004-637X/768/2/123 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 134QK UT WOS:000318228400026 ER PT J AU McGreer, ID Jiang, LH Fan, XH Richards, GT Strauss, MA Ross, NP White, M Shen, Y Schneider, DP Myers, AD Brandt, WN DeGraf, C Glikman, E Ge, J Streblyanska, A AF McGreer, Ian D. Jiang, Linhua Fan, Xiaohui Richards, Gordon T. Strauss, Michael A. Ross, Nicholas P. White, Martin Shen, Yue Schneider, Donald P. Myers, Adam D. Brandt, W. Niel DeGraf, Colin Glikman, Eilat Ge, Jian Streblyanska, Alina TI THE z=5 QUASAR LUMINOSITY FUNCTION FROM SDSS STRIPE 82 SO ASTROPHYSICAL JOURNAL LA English DT Article DE quasars: general ID DIGITAL-SKY-SURVEY; HIGH-REDSHIFT QUASARS; SUPERMASSIVE BLACK-HOLES; OSCILLATION SPECTROSCOPIC SURVEY; SIMILAR-TO 4; SURVEY PHOTOMETRIC SYSTEM; SURVEY COMMISSIONING DATA; ACTIVE GALACTIC NUCLEI; BROAD ABSORPTION-LINE; EARLY DATA RELEASE AB We present ameasurement of the Type I quasar luminosity function at z = 5 using a large sample of spectroscopically confirmed quasars selected from optical imaging data. We measure the bright end (M-1450 < -26) with Sloan Digital Sky Survey (SDSS) data covering similar to 6000 deg(2), then extend to lower luminosities (M-1450 < -24) with newly discovered, faint z similar to 5 quasars selected from 235 deg(2) of deep, coadded imaging in the SDSS Stripe 82 region (the celestial equator in the Southern Galactic Cap). The faint sample includes 14 quasars with spectra obtained as ancillary science targets in the SDSS-III Baryon Oscillation Spectroscopic Survey, and 59 quasars observed at the MMT and Magellan telescopes. We construct a well-defined sample of 4.7 < z < 5.1 quasars that is highly complete, with 73 spectroscopic identifications out of 92 candidates. Our color selection method is also highly efficient: of the 73 spectra obtained, 71 are high-redshift quasars. These observations reach below the break in the luminosity function (M*(1450) approximate to -27). The bright-end slope is steep (beta less than or similar to -4), with a constraint of beta < -3.1 at 95% confidence. The break luminosity appears to evolve strongly at high redshift, providing an explanation for the flattening of the bright-end slope reported previously. We find a factor of similar to 2 greater decrease in the number density of luminous quasars (M-1450 < -26) from z = 5 to z = 6 than from z = 4 to z = 5, suggesting a more rapid decline in quasar activity at high redshift than found in previous surveys. Our model for the quasar luminosity function predicts that quasars generate similar to 30% of the ionizing photons required to keep hydrogen in the universe ionized at z = 5. C1 [McGreer, Ian D.; Fan, Xiaohui] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. [Jiang, Linhua] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA. [Richards, Gordon T.] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA. [Strauss, Michael A.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Ross, Nicholas P.; White, Martin] Lawrence Berkeley Natl Lab, Berkeley, CA 92420 USA. [White, Martin] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Shen, Yue] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Schneider, Donald P.; Brandt, W. Niel] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA. [Schneider, Donald P.] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA. [Myers, Adam D.] Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA. [DeGraf, Colin] Carnegie Mellon Univ, McWilliams Ctr Cosmol, Pittsburgh, PA 15213 USA. [Glikman, Eilat] Yale Univ, Dept Phys, New Haven, CT 06520 USA. [Glikman, Eilat] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA. [Ge, Jian] Univ Florida, Bryant Space Sci Ctr 211, Dept Astron, Gainesville, FL 32611 USA. [Streblyanska, Alina] IAC, E-38200 Tenerife, Spain. [Streblyanska, Alina] ULL, Dept Astrofis, E-38206 Tenerife, Spain. RP McGreer, ID (reprint author), Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA. EM imcgreer@as.arizona.edu RI White, Martin/I-3880-2015; Brandt, William/N-2844-2015; Jiang, Linhua/H-5485-2016 OI White, Martin/0000-0001-9912-5070; Brandt, William/0000-0002-0167-2453; Jiang, Linhua/0000-0003-4176-6486 FU David and Lucile Packard Fellowship; NSF [AST 08-06861, AST 11-07682]; NASA [HST-HF-51291.01]; STSci; Alfred P. Sloan Foundation; National Science Foundation; U.S. Department of Energy Office of Science; University of Arizona; Brookhaven National Laboratory; University of Cambridge; Carnegie Mellon University; University of Florida; Harvard University; Instituto de Astrofisica de Canarias; Johns Hopkins University; Lawrence Berkeley National Laboratory; Max Planck Institute for Astrophysics; Max Planck Institute for Extraterrestrial Physics; New Mexico State University; New York University; Ohio State University; Pennsylvania State University; University of Portsmouth; Princeton University; University of Tokyo; University of Utah; Vanderbilt University; University of Virginia; University of Washington; Yale University FX The authors thank the staffs of the MMT and Magellan telescopes, particularly the recently retired John McAfee, for enabling many of the observations presented here. I.D.M., L.J., and X.F. acknowledge support from a David and Lucile Packard Fellowship, and NSF Grants AST 08-06861 and AST 11-07682. L.J. acknowledges support from NASA through Hubble Fellowship grant HST-HF-51291.01 awarded by the STSci.; Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy Office of Science. The SDSS-III Web site is http://www.sdss3.org/.; SDSS-III is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS-III Collaboration including the University of Arizona, the Brazilian Participation Group, Brookhaven National Laboratory, University of Cambridge, Carnegie Mellon University, University of Florida, the French Participation Group, the German Participation Group, Harvard University, the Instituto de Astrofisica de Canarias, the Michigan State/Notre Dame/JINA Participation Group, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, Max Planck Institute for Extraterrestrial Physics, New Mexico State University, New York University, Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, the Spanish Participation Group, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, and Yale University. NR 146 TC 61 Z9 61 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD MAY 10 PY 2013 VL 768 IS 2 AR 105 DI 10.1088/0004-637X/768/2/105 PG 25 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 134QK UT WOS:000318228400008 ER PT J AU Ott, CD Abdikamalov, E Mosta, P Haas, R Drasco, S O'Connor, EP Reisswig, C Meakin, CA Schnetter, E AF Ott, Christian D. Abdikamalov, Ernazar Moesta, Philipp Haas, Roland Drasco, Steve O'Connor, Evan P. Reisswig, Christian Meakin, Casey A. Schnetter, Erik TI GENERAL-RELATIVISTIC SIMULATIONS OF THREE-DIMENSIONAL CORE-COLLAPSE SUPERNOVAE SO ASTROPHYSICAL JOURNAL LA English DT Article DE gravitation; gravitational waves; hydrodynamics; neutrinos; supernovae: general ID ACCRETION-SHOCK INSTABILITY; SPECTRAL NEUTRINO TRANSPORT; EQUATION-OF-STATE; HIGH-RESOLUTION CALCULATIONS; GRAVITATIONAL-WAVE EMISSION; ADVECTIVE-ACOUSTIC CYCLE; CIRCLE-DOT STAR; DRIVEN SUPERNOVA; RADIATION HYDRODYNAMICS; MESH REFINEMENT AB We study the three-dimensional (3D) hydrodynamics of the post-core-bounce phase of the collapse of a 27 M-circle dot star and pay special attention to the development of the standing accretion shock instability (SASI) and neutrino-driven convection. To this end, we perform 3D general-relativistic simulations with a three-species neutrino leakage scheme. The leakage scheme captures the essential aspects of neutrino cooling, heating, and lepton number exchange as predicted by radiation-hydrodynamics simulations. The 27 M-circle dot progenitor was studied in 2D by Muller et al., who observed strong growth of the SASI while neutrino-driven convection was suppressed. In our 3D simulations, neutrino-driven convection grows from numerical perturbations imposed by our Cartesian grid. It becomes the dominant instability and leads to large-scale non-oscillatory deformations of the shock front. These will result in strongly aspherical explosions without the need for large-scale SASI shock oscillations. Low-l-mode SASI oscillations are present in our models, but saturate at small amplitudes that decrease with increasing neutrino heating and vigor of convection. Our results, in agreement with simpler 3D Newtonian simulations, suggest that once neutrino-driven convection is started, it is likely to become the dominant instability in 3D. Whether it is the primary instability after bounce will ultimately depend on the physical seed perturbations present in the cores of massive stars. The gravitational wave signal, which we extract and analyze for the first time from 3D general-relativistic models, will serve as an observational probe of the postbounce dynamics and, in combination with neutrinos, may allow us to determine the primary hydrodynamic instability. C1 [Ott, Christian D.; Abdikamalov, Ernazar; Moesta, Philipp; Haas, Roland; Drasco, Steve; O'Connor, Evan P.; Reisswig, Christian] CALTECH, TAPIR, Pasadena, CA 91125 USA. [Ott, Christian D.] Univ Tokyo, Kavli IPMU, Kashiwa, Chiba, Japan. [Drasco, Steve] Grinnell Coll, Grinnell, IA 50112 USA. [O'Connor, Evan P.] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 1A1, Canada. [Meakin, Casey A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA. [Meakin, Casey A.] Univ Arizona, Steward Observ, Tucson, AZ USA. [Schnetter, Erik] Perimeter Inst Theoret Phys, Waterloo, ON, Canada. [Schnetter, Erik] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. [Schnetter, Erik] Louisiana State Univ, Ctr Computat & Technol, Baton Rouge, LA 70803 USA. RP Ott, CD (reprint author), CALTECH, TAPIR, Mailcode 350-17, Pasadena, CA 91125 USA. EM cott@tapir.caltech.edu RI Ott, Christian/G-2651-2011; OI Ott, Christian/0000-0003-4993-2055; O'Connor, Evan/0000-0002-8228-796X; Schnetter, Erik/0000-0002-4518-9017; Reisswig, Christian/0000-0001-6855-9351 FU NSF [AST-0855535, AST-1212170, PHY-0904015, PHY-1151197, OCI-0905046, OCI-0941653]; Sloan Research Foundation; Sherman Fairchild Foundation; NASA through Einstein Postdoctoral Fellowship [PF2-130099]; Chandra X-ray center; NASA [NAS8-03060]; Natural Sciences and Engineering Council of Canada; NSF MRI [PHY-0960291]; Louisiana Optical Network Initiative [loni_numrel07]; Office of Science of the US Department of Energy [DE-AC02-05CH11231] FX We acknowledge helpful discussions with Dave Arnett, Adam Burrows, Sean Couch, Luc Dessart, Thierry Foglizzo, Uschi C. T. Gamma, Sarah Gossan, Raph Hix, H.-Thomas Janka, Peter Kalmus, Hannah Klion, Io Kleiser, Jim Lattimer, Bernhard Muller, Jeremiah Murphy, David Radice, Luke Roberts, Jason Nordhaus, Ken Nomoto, Jerome Novak, Tony Piro, Sherwood Richers, and members of our Simulating eXtreme Spacetimes (SXS) collaboration (http://www.black-holes.org). This research is partially supported by NSF grant Nos. AST-0855535, AST-1212170, PHY-0904015, PHY-1151197, OCI-0905046, and OCI-0941653, by the Sloan Research Foundation, and by the Sherman Fairchild Foundation. C. R. acknowledges support by NASA through Einstein Postdoctoral Fellowship grant No. PF2-130099 awarded by the Chandra X-ray center, which is operated by the Smithsonian Astrophysical Observatory for NASA under contract NAS8-03060. R. H. acknowledges support by the Natural Sciences and Engineering Council of Canada. The simulations were performed on the Caltech compute cluster "Zwicky" (NSF MRI award No. PHY-0960291), on supercomputers of the NSF XSEDE network under computer time allocation TG-PHY100033, on machines of the Louisiana Optical Network Initiative under grant loni_numrel07, and at the National Energy Research Scientific Computing Center (NERSC), which is supported by the Office of Science of the US Department of Energy under contract DE-AC02-05CH11231. The multi-dimensional visualizations were generated with the open-source VisIt visualization package (https://wci.llnl.gov/codes/visit/). All other figures were generated with the Python-based matplotlib package (http://matplotlib.org/). NR 131 TC 78 Z9 78 U1 0 U2 5 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD MAY 10 PY 2013 VL 768 IS 2 AR 115 DI 10.1088/0004-637X/768/2/115 PG 24 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 134QK UT WOS:000318228400018 ER PT J AU Whalen, DJ Even, W Lovekin, CC Fryer, CL Stiavelli, M Roming, PWA Cooke, J Pritchard, TA Holz, DE Knight, C AF Whalen, Daniel J. Even, Wesley Lovekin, C. C. Fryer, Chris L. Stiavelli, Massimo Roming, P. W. A. Cooke, Jeff Pritchard, T. A. Holz, Daniel E. Knight, Cynthia TI ILLUMINATING THE PRIMEVAL UNIVERSE WITH TYPE IIn SUPERNOVAE SO ASTROPHYSICAL JOURNAL LA English DT Article DE early universe; galaxies: high-redshift; hydrodynamics; radiative transfer; stars: early-type; supernovae: general ID PAIR-INSTABILITY SUPERNOVAE; GAMMA-RAY BURSTS; SUPERMASSIVE BLACK-HOLES; METAL-POOR STARS; RESOLUTION IMAGING SPECTROMETER; MASSIVE PRIMORDIAL STARS; HIGH-REDSHIFT UNIVERSE; 1ST STARS; POPULATION-III; HII REGION AB The detection of Population III (Pop III) supernovae (SNe) could directly probe the primordial initial mass function for the first time, unveiling the properties of the first galaxies, early chemical enrichment and reionization, and the seeds of supermassive black holes. Growing evidence that some Pop III stars were less massive than 100 M-circle dot may complicate prospects for their detection, because even though they would have been more plentiful, they would have died as core-collapse SNe, with far less luminosity than pair-instability explosions. This picture greatly improves if the SN shock collides with a dense circumstellar shell ejected during a prior violent luminous blue variable type eruption. Such collisions can turn even dim SNe into extremely bright ones whose luminosities can rival those of pair-instability SNe. We present simulations of Pop III Type IIn SN light curves and spectra performed with the Los Alamos RAGE and SPECTRUM codes. Taking into account Ly alpha absorption in the early universe and cosmological redshifting, we find that 40 M-circle dot Pop III Type IIn SNe will be visible out to z similar to 20 with the James Webb Space Telescope and out to z similar to 7 with WFIRST. Thus, even low mass Pop III SNe can be used to probe the primeval universe. C1 [Whalen, Daniel J.] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA. [Even, Wesley] Los Alamos Natl Lab, XTD 6, Los Alamos, NM 87545 USA. [Lovekin, C. C.; Knight, Cynthia] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Fryer, Chris L.] Los Alamos Natl Lab, CCS 2, Los Alamos, NM 87545 USA. [Stiavelli, Massimo] Space Telescope Sci Inst, Baltimore, MD 21218 USA. [Roming, P. W. A.] SW Res Inst, Space Sci & Engn Div, San Antonio, TX 78228 USA. [Roming, P. W. A.; Pritchard, T. A.] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA. [Cooke, Jeff] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia. [Holz, Daniel E.] Univ Chicago, Dept Phys, Enrico Fermi Inst, Chicago, IL 60637 USA. [Holz, Daniel E.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Knight, Cynthia] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA. RP Whalen, DJ (reprint author), Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA. OI Even, Wesley/0000-0002-5412-3618 FU Bruce and Astrid McWilliams Center for Cosmology at Carnegie Mellon University; NASA JWST [NAG5-12458]; National Science Foundation [PHY-1151836]; U.S. Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396] FX We thank the anonymous referee, whose comments improved the quality of this paper. D.J.W. is grateful for helpful discussions with Lucy Frey and Candace Joggerst and for support from the Bruce and Astrid McWilliams Center for Cosmology at Carnegie Mellon University. M. S. thanks Marcia Rieke for making the NIRCam filter curves available and was partially supported by NASA JWST grant NAG5-12458. D. E. H. acknowledges support from the National Science Foundation CAREER grant PHY-1151836. Our work in part is based on observations obtained with MegaPrime and MegaCam, a joint project of CFHT and CEA/IRFU, at the Canada-France-Hawaii Telescope (CFHT), which is operated by the National Research Council (NRC) of Canada, the Institut National des Science de l'Univers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii. Our work is also based in part on data products produced at Terapix available at the Canadian Astronomy Data Centre as part of the Canada-France-Hawaii Telescope Legacy Survey, a collaborative project of NRC and CNRS. Work at LANL was performed under the auspices of the National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396. All RAGE and SPECTRUM calculations were performed on Institutional Computing (IC) and Yellow network platforms at LANL (Conejo, Lobo, and Yellowrail). NR 166 TC 28 Z9 28 U1 0 U2 14 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD MAY 10 PY 2013 VL 768 IS 2 AR 195 DI 10.1088/0004-637X/768/2/195 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 134QK UT WOS:000318228400098 ER PT J AU Saye, RI Sethian, JA AF Saye, Robert I. Sethian, James A. TI Multiscale Modeling of Membrane Rearrangement, Drainage, and Rupture in Evolving Foams SO SCIENCE LA English DT Article ID IMPLICIT INTERFACE METHOD; SURFACE-TENSION; THIN-FILMS; FLOW AB Modeling the physics of foams and foamlike materials, such as soapy froths, fire retardants, and lightweight crash-absorbent structures, presents challenges, because of the vastly different time and space scales involved. By separating and coupling these disparate scales, we have designed a multiscale framework to model dry foam dynamics. This leads to a predictive and flexible computational methodology linking, with a few simplifying assumptions, foam drainage, rupture, and topological rearrangement, to coupled interface-fluid motion under surface tension, gravity, and incompressible fluid dynamics. Our computed results match theoretical analyses and experimentally observed physical effects, including thin-film drainage and interference, and are used to study bubble rupture cascades and macroscopic rearrangement. The developed multiscale model allows quantitative computation of complex foam evolution phenomena. C1 [Sethian, James A.] Univ Calif Berkeley, Dept Math, Berkeley, CA 94720 USA. [Saye, Robert I.; Sethian, James A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Sethian, JA (reprint author), Univ Calif Berkeley, Dept Math, Berkeley, CA 94720 USA. EM sethian@math.berkeley.edu FU Applied Mathematical Sciences subprogram of the Office of Energy Research, U.S. Department of Energy [DE-AC02-05CH11231]; Division of Mathematical Sciences of the NSF; National Cancer Institute [U54CA143833]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]; Miller Foundation at University of California, Berkeley; American Australian Association Sir Keith Murdoch Fellowship FX This research was supported in part by the Applied Mathematical Sciences subprogram of the Office of Energy Research, U.S. Department of Energy, under contract DE-AC02-05CH11231, by the Division of Mathematical Sciences of the NSF, and by National Cancer Institute U54CA143833. Some computations used the resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under contract DE-AC02-05CH11231. J.A.S. was also supported by the Miller Foundation at University of California, Berkeley, and as an Einstein Visiting Fellow of the Einstein Foundation, Berlin. R. I. S. was also supported by an American Australian Association Sir Keith Murdoch Fellowship. NR 22 TC 23 Z9 24 U1 3 U2 97 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 EI 1095-9203 J9 SCIENCE JI Science PD MAY 10 PY 2013 VL 340 IS 6133 BP 720 EP 724 DI 10.1126/science.1230623 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 139XR UT WOS:000318619000032 PM 23661755 ER PT J AU Wang, Y Wong, D Shytov, AV Brar, VW Choi, S Wu, Q Tsai, HZ Regan, W Zettl, A Kawakami, RK Louie, SG Levitov, LS Crommie, MF AF Wang, Yang Wong, Dillon Shytov, Andrey V. Brar, Victor W. Choi, Sangkook Wu, Qiong Tsai, Hsin-Zon Regan, William Zettl, Alex Kawakami, Roland K. Louie, Steven G. Levitov, Leonid S. Crommie, Michael F. TI Observing Atomic Collapse Resonances in Artificial Nuclei on Graphene SO SCIENCE LA English DT Article ID SCANNING TUNNELING SPECTROSCOPY; ELECTRONIC-PROPERTIES; BORON-NITRIDE; HIGH-QUALITY; MICROSCOPY; SCATTERING; STATES AB Relativistic quantum mechanics predicts that when the charge of a superheavy atomic nucleus surpasses a certain threshold, the resulting strong Coulomb field causes an unusual atomic collapse state; this state exhibits an electron wave function component that falls toward the nucleus, as well as a positron component that escapes to infinity. In graphene, where charge carriers behave as massless relativistic particles, it has been predicted that highly charged impurities should exhibit resonances corresponding to these atomic collapse states. We have observed the formation of such resonances around artificial nuclei (clusters of charged calcium dimers) fabricated on gated graphene devices via atomic manipulation with a scanning tunneling microscope. The energy and spatial dependence of the atomic collapse state measured with scanning tunneling microscopy revealed unexpected behavior when occupied by electrons. C1 [Wang, Yang; Wong, Dillon; Brar, Victor W.; Choi, Sangkook; Wu, Qiong; Tsai, Hsin-Zon; Regan, William; Zettl, Alex; Louie, Steven G.; Crommie, Michael F.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Wang, Yang; Wong, Dillon; Brar, Victor W.; Wu, Qiong; Regan, William; Zettl, Alex; Louie, Steven G.; Crommie, Michael F.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Shytov, Andrey V.] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England. [Levitov, Leonid S.] MIT, Dept Phys, Cambridge, MA 02139 USA. [Kawakami, Roland K.] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA. RP Crommie, MF (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM crommie@berkeley.edu RI Wong, Dillon/G-8530-2013; Tsai, Hsin-Zon/J-1682-2016; Zettl, Alex/O-4925-2016; OI Wong, Dillon/0000-0002-4931-4188; Tsai, Hsin-Zon/0000-0003-2097-0170; Zettl, Alex/0000-0001-6330-136X; Regan, William/0000-0003-0143-9827; Shytov, Andrey/0000-0002-4674-8124 FU Office of Naval Research Multidisciplinary University Research Initiative [N00014-09-1-1066]; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy (DOE) [DE-AC02-05CH11231]; NSF [EEC-0832819, DMR10-1006184]; Engineering and Physical Sciences Research Council [EP/G036101/1] FX Our research was supported by the Office of Naval Research Multidisciplinary University Research Initiative award no. N00014-09-1-1066 (graphene device preparation, characterization, and imaging); the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy (DOE) under contract no. DE-AC02-05CH11231 (STM instrumentation development and spectroscopy); NSF award nos. EEC-0832819 (dI/dV simulations) and DMR10-1006184 (DFT calculations); and Engineering and Physical Sciences Research Council grant EP/G036101/1 (Dirac equation calculations). Computational resources were provided by DOE at the LBNL National Energy Research Scientific Computing Center. NR 26 TC 64 Z9 65 U1 6 U2 173 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 EI 1095-9203 J9 SCIENCE JI Science PD MAY 10 PY 2013 VL 340 IS 6133 BP 734 EP 737 DI 10.1126/science.1234320 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 139XR UT WOS:000318619000036 PM 23470728 ER PT J AU Fang, F Pain, CC Navon, IM Cacuci, DG Chen, X AF Fang, F. Pain, C. C. Navon, I. M. Cacuci, D. G. Chen, X. TI The independent set perturbation method for efficient computation of sensitivities with applications to data assimilation and a finite element shallow water model SO COMPUTERS & FLUIDS LA English DT Article DE Variational methods; Shallow water; Optimisation ID VARIATIONAL DATA ASSIMILATION; AUTOMATIC DIFFERENTIATION; METEOROLOGICAL OBSERVATIONS; ADJOINT SENSITIVITY; PRIMITIVE EQUATIONS; UNSTRUCTURED GRIDS; SYSTEMS; CONSTRUCTION; ALGORITHMS; REDUCTION AB An adjoint model for a 2D Galerkin/Petrov-Galerkin finite element (FE) shallow water (S-W) model is developed using the Independent Set Perturbation (ISP, [40]) sensitivity analysis. Its performance in a full 4-D Var setup with a limited area shallow water equations model is assessed by comparing with the adjoint model derived by the automatic differentiation approach (TAMC), where it is used for optimising the initial conditions. It is shown that the ISP sensitivity analysis provides a very simple approach of forming the adjoint code/gradients/differentiation of discrete forward models (even complex governing equations, discretization methods and non-linear parameterizations) and is realised using a graph colouring approach combined with a perturbation method. Importantly, the adjoint is automatically updated as the forward code continues to be developed. In the test cases, it is shown that the adjoint model using the ISP sensitivity analysis can achieve the accuracy of traditional adjoint models derived by the automatic differentiation method (TAMC) [31]. Further comparison shows that the CPU time required for running the adjoint model using the ISP sensitivity analysis is much less than that required for the automatic differentiation derived adjoint model since the ISP derived adjoint CPU time scales linearly with the problem size. The ISP sensitivity analysis is further applied to a highly non-linear Petrov-Galerkin FE model. The perturbation size used in deriving the tangent linear model with the ISP sensitivity analysis method is then optimised and the resulting approach used to assimilate both sparse (more realistic) and dense observational data for optimising the initial conditions. A simple first order formula is developed to calculate the perturbation size for each variable, at each node and time level. By applying the ISP sensitivity method to an intermediate complexity model (a shallow water model) this paper outlines steps towards applying the approach to data assimilation (DA) problems involving realistic complex models. (C) 2013 Elsevier Ltd. All rights reserved. C1 [Fang, F.; Pain, C. C.] Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, Appl Modelling & Computat Grp, London SW7 2BP, England. [Navon, I. M.] Florida State Univ, Dept Comp Sci, Tallahassee, FL 32306 USA. [Cacuci, D. G.] N Carolina State Univ, Dept Nucl Engn, Raleigh, NC 27695 USA. [Chen, X.] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94550 USA. RP Navon, IM (reprint author), Florida State Univ, Dept Comp Sci, Tallahassee, FL 32306 USA. EM inavon@fsu.edu RI Navon, Ionel/A-5173-2008; Chen, Xiao/K-3070-2014 OI Navon, Ionel/0000-0001-7830-7094; FU UK's Natural Environment Research Council [NER/A/S/2003/00595, NE/C52101X/1, NE/C51829X/1, NE/F012594/1]; Engineering and Physical Sciences Research Council [GR/R60898, EP/I00405X/1]; Leverhulme Trust [F/07058/AB]; NSF [ATM-0931198] FX This work was carried out under funding from the UK's Natural Environment Research Council (Projects NER/A/S/2003/00595, NE/C52101X/1, NE/C51829X/1 and NE/F012594/1), the Engineering and Physical Sciences Research Council (GR/R60898 and EP/I00405X/1) and the Leverhulme Trust (F/07058/AB), and with support from the NURISP framework seven project, the Imperial Col lege High Performance Computing Service and the Grantham Institute for Climate Change. Prof. I.M. Navon would like to acknowledge support from NSF grant ATM-0931198. Many thanks to Dr. Paul Hovland from Argonne National Laboratory for his advice and Ryder Michelle for help with the technical writing up of this work. NR 54 TC 7 Z9 7 U1 0 U2 10 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0045-7930 EI 1879-0747 J9 COMPUT FLUIDS JI Comput. Fluids PD MAY 10 PY 2013 VL 76 BP 33 EP 49 DI 10.1016/j.compfluid.2013.01.025 PG 17 WC Computer Science, Interdisciplinary Applications; Mechanics SC Computer Science; Mechanics GA 130AR UT WOS:000317885600004 ER PT J AU Peukert, SL Sivaramakrishnan, R Michael, JV AF Peukert, S. L. Sivaramakrishnan, R. Michael, J. V. TI High Temperature Shock Tube and Theoretical Studies on the Thermal Decomposition of Dimethyl Carbonate and Its Bimolecular Reactions with H and D-Atoms SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID TRANSITION-STATE-THEORY; PRESSURE RATE-CONSTANT; AB-INITIO; ROAMING RADICALS; CH4 DISSOCIATION; MASTER EQUATION; METHYL FORMATE; GAS-PHASE; EMISSIONS; DIESEL AB The shock tube technique was used to study the high temperature thermal decomposition of dimethyl carbonate, CH3OC(O)OCH3 (DMC). The formation of H-atoms was measured behind reflected shock waves by using atomic resonance absorption spectrometry (ARAS). The experiments span a T-range of 1053-1157 K at pressures similar to 0.5 atm. The H-atom profiles were simulated using a detailed chemical kinetic mechanism for DMC thermal decomposition. Simulations indicate that the formation of H-atoms is sensitive to the rate constants for the energetically lowest-lying bond fission channel, CH3OC(O)OCH3 -> CH3 + CH3OC(O)O [A], where H-atoms form instantaneously at high temperatures from the sequence of radical beta-scissions, CH3OC(O)O -> CH3O + CO2 -> H + CH2O + CO2. A master equation analysis was performed using CCSD(T)/cc-pv infinity z//M06-2X/cc-pvtz energetics and molecular properties for all thermal decomposition processes in DMC. The theoretical predictions were found to be in good agreement with the present experimentally derived rate constants for the bond fission channel (A). The theoretically derived rate constants for this important bond-fission process in DMC can be represented by a modified Arrhenius expression at 0.5 atm over the T-range 1000-2000 K as, k(A)(T) = 6.85 X 10(98)T(-24.239) exp(-65250 K/T) s(-1). The H-atom temporal profiles at long times show only minor sensitivity to the abstraction reaction, H + CH3OC(O)OCH3 -> H-2 + CH3OC(O)OCH2 [B]. However, H + DMC is an important fuel destruction reaction at high temperatures. Consequently, measurements of D-atom profiles using D-ARAS allowed unambiguous rate constant measurements for the deuterated analog of reaction B, D + CH3OC(O)OCH3 -> HD + CH3OC(O)OCH2 [C]. Reaction C is a surrogate for H + DMC since the theoretically predicted kinetic isotope effect at high temperatures (1000 - 2000K) is close to unity, k(C) approximate to 1.2 k(B). TST calculations employing CCSD(T)/cc-pv infinity z//M06-2X/cc-pvtz energetics and molecular properties for reactions B and C are in good agreement with the experimental rate constants. The theoretical rate constants for these bimolecular processes can be represented by modified Arrhenius expressions over the T-range 500-2000 K as, k(B)(T) = 1.45 X 10(-19T2.827) exp(-3398 K/T) cm(3) molecule(-1) s(-1) and k(C)(T) = 2.94 X 10(-19T2.729) exp(-3215 K/T) cm(3) molecule(-1) s(-1). C1 [Peukert, S. L.; Sivaramakrishnan, R.; Michael, J. V.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Sivaramakrishnan, R (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM raghu@anl.gov; jmichael@anl.gov RI SIVARAMAKRISHNAN, RAGHU/C-3481-2008; Michael, Joe/E-3907-2010 OI SIVARAMAKRISHNAN, RAGHU/0000-0002-1867-1254; FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences [DEAC02-06CH11357] FX This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences, under Contract No. DEAC02-06CH11357. NR 64 TC 5 Z9 5 U1 0 U2 21 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD MAY 9 PY 2013 VL 117 IS 18 BP 3718 EP 3728 DI 10.1021/jp312643k PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 143UC UT WOS:000318892700002 PM 23510116 ER PT J AU Peukert, SL Sivaramakrishnan, R Michael, JV AF Peukert, S. L. Sivaramakrishnan, R. Michael, J. V. TI High Temperature Shock Tube Studies on the Thermal Decomposition of O-3 and the Reaction of Dimethyl Carbonate with O-Atoms SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID ACTIVE THERMOCHEMICAL TABLES; TRANSITION-STATE-THEORY; RATE CONSTANTS; ATOMIZATION ENERGIES; METHYL FORMATE; AB-INITIO; PHOTOLYSIS; DISSOCIATION; KINETICS; FLASH AB The shock tube technique was used to study the thermal decomposition of ozone, O-3, with a view to using this as a thermal precursor of O-atoms at high temperatures. The formation of O-atoms was measured behind reflected shock waves by using atomic resonance absorption spectrometry (ARAS). The experiments span a T-range, 819 K <= T <= 1166 K, at pressures 0.13 bar <= P <= 0.6 bar. Unimolecular rate theory provides an excellent representation of the falloff characteristics from the present and literature data on ozone decomposition at high temperatures. The present decomposition study on ozone permits its usage as a thermal source for O-atoms allowing measurements for, O + CH3OC(O)OCH3 -> OH + CH3OC(O)OCH2 [A]. Reflected shock tube experiments monitoring the formation and decay of O-atoms were performed on reaction A using mixtures of O-3 and CH3OC(O)OCH3, (DMC), in Kr bath gas over the T-range, 862 K <= T <= 1167 K, and pressure range, 0.15 bar <= P <= 0.33 bar. A detailed model was used to fit the O-atom temporal profile to obtain experimental rate constants for reaction A. Rate constants from the present experiments for O + DMC can be represented by the Arrhenius expression: k(A)(T) = 2.70 X 10(-11) exp(-2725 K/T) cm(3) molecule(-1) s(-1) (862-1167 K). Transition state theory calculations employing CCSD(T)/cc-pv infinity z//M06-2X/cc-pvtz energetics and molecular properties for reaction A are in good agreement with the experimental rate constants. The theoretical rate constants can be well represented (to within +/- 10%) over the 500-2000 K temperature range by: k(A)(T) = 1.87 X 10(-20T2.924) exp(-2338 K/T) cm(3) molecule(-1) s(-1). The present study represents the first experimental measurement and theoretical study on this bimolecular reaction which is of relevance to the high temperature oxidation of DMC. C1 [Peukert, S. L.; Sivaramakrishnan, R.; Michael, J. V.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Sivaramakrishnan, R (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM raghu@anl.gov; jmichael@anl.gov RI SIVARAMAKRISHNAN, RAGHU/C-3481-2008; Michael, Joe/E-3907-2010 OI SIVARAMAKRISHNAN, RAGHU/0000-0002-1867-1254; FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences [DEAC02-06CH11357] FX This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences, under Contract No. DEAC02-06CH11357. NR 58 TC 4 Z9 4 U1 0 U2 17 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD MAY 9 PY 2013 VL 117 IS 18 BP 3729 EP 3738 DI 10.1021/jp400613p PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 143UC UT WOS:000318892700003 PM 23510082 ER PT J AU Lomont, JP Nguyen, SC Harris, CB AF Lomont, Justin P. Nguyen, Son C. Harris, Charles B. TI Insights into the Photochemical Disproportionation of Transition Metal Dimers on the Picosecond Time Scale SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID RESOLVED INFRARED-SPECTROSCOPY; GENERATED ORGANOMETALLIC RADICALS; MOLECULAR-ORBITAL METHODS; SUBSTITUTION-REACTIONS; LIGAND SUBSTITUTION; ELECTRON-TRANSFER; ROOM-TEMPERATURE; 19-ELECTRON COMPLEXES; 17-ELECTRON RADICALS; CARBONYL-COMPLEXES AB The reactivity of five transition metal dimers toward photochemical, in-solvent-cage disproportionation has been investigated using picosecond time-resolved infrared spectroscopy. Previous ultrafast studies on [CpW(CO)(3)](2), established the role of an in-cage disproportionation mechanism involving electron transfer between 17- and 19-electron radicals prior to diffusion out of the solvent cage. New results from time-resolved infrared studies reveal that the identity of the transition metal complex dictates whether the in-cage disproportionation mechanism can take place, as well as the more fundamental issue of whether 19-electron intermediates are able to form on the picosecond time scale. Significantly, the in-cage disproportionation mechanism observed previously for the tungsten dimer does not characterize the reactivity of four out of the five transition metal dimers in this study. The differences in the ability to form 19-electron intermediates are interpreted either in terms of differences in the 17/19-electron equilibrium or of differences in an energetic barrier to associative coordination of a Lewis base, whereas the case for the in-cage vs diffusive disproportionation mechanisms depends on whether the 19-electron reducing agent is genuinely characterized by 19-electron configuration at the metal center or if it is better described as an 18 + delta complex. These results help to better understand the factors that dictate mechanisms of radical disproportionation and carry implications for radical chain mechanisms. C1 [Harris, Charles B.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, US Chem Sci Div, Berkeley, CA 94720 USA. RP Harris, CB (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM cbharris@berkeley.edu FU NSF's Division of Physical Chemistry; Molecular Graphics and Computation Facility at UC-Berkeley [CHE-0840505, CHE-0233882]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]; VIED fellowship; NSF FX This work was supported by NSF's Division of Physical Chemistry. The authors acknowledge use of the Molecular Graphics and Computation Facility at UC-Berkeley (grants CHE-0840505, CHE-0233882). This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. S.C.N. acknowledges support through a VIED fellowship. J.P.L. acknowledges support through an NSF graduate research fellowship. NR 83 TC 3 Z9 3 U1 4 U2 23 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD MAY 9 PY 2013 VL 117 IS 18 BP 3777 EP 3785 DI 10.1021/jp4021036 PG 9 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 143UC UT WOS:000318892700008 PM 23586784 ER PT J AU Zaug, JM Carter, JA Bastea, S Armstrong, MR Crowhurst, JC Fried, LE AF Zaug, Joseph M. Carter, Jeffrey A. Bastea, Sorin Armstrong, Michael R. Crowhurst, Jonathan C. Fried, Laurence E. TI Experimental Measurement of Speeds of Sound in Dense Supercritical Carbon Monoxide and Development of a High-Pressure, High-Temperature Equation of State SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID DIAMOND-ANVIL CELL; SIMPLE MOLECULES; C-O; FLUIDS; VELOCITY; PHASE; BETA; KBAR; MPA; DEPENDENCE AB We report the adiabatic sound speeds for supercritical fluid carbon monoxide along two isotherms, from 0.17 to 2.13 GPa at 297 K and from 0.31 to 3.2 GPa at 600 K. The carbon monoxide was confined in a resistively heated diamond-anvil cell, and the sound speed measurements were conducted in situ using a recently reported variant of the photoacoustic light scattering effect. The measured sound speeds were then used to parametrize a single site dipolar exponential-6 intermolecular potential for carbon monoxide. P rho T thermodynamic states, sound speeds, and shock Hugoniots were calculated using the newly parametrized intermolecular potential and compared to previously reported experimental results. Additionally, we generated an analytical equation of state for carbon monoxide by fitting to a grid of calculated P rho T states over a range of 0.1-10 GPa and 150-2000 K. A 2% mean variation was found between computed high-pressure solid-phase densities and measured data-a surprising result for a spherical interaction potential. We further computed a rotationally dependent fluid to beta-solid phase boundary; results signal the relative magnitude of short-range rotational disorder under conditions that span existing phase boundary measurements. C1 [Zaug, Joseph M.; Carter, Jeffrey A.; Bastea, Sorin; Armstrong, Michael R.; Crowhurst, Jonathan C.; Fried, Laurence E.] Lawrence Livermore Natl Lab, Chem Sci Directorate, Livermore, CA 94550 USA. RP Zaug, JM (reprint author), Lawrence Livermore Natl Lab, Chem Sci Directorate, Livermore, CA 94550 USA. EM zaug1@llnl.gov RI Armstrong, Michael/I-9454-2012; Fried, Laurence/L-8714-2014 OI Fried, Laurence/0000-0002-9437-7700 FU Joint DoD/DOE Munitions Program; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX We thank Prof. Evan Abramson for providing our group with Sm:SrB4O7 single crystals. We also acknowledge Prof. Mike Brown for providing us with his IAPWS Mat Lab code used to calculate the sound velocity of pressurized fluid water. This research was partly funded by the Joint DoD/DOE Munitions Program, and was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. NR 49 TC 0 Z9 0 U1 2 U2 25 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD MAY 9 PY 2013 VL 117 IS 18 BP 5675 EP 5682 DI 10.1021/jp401510m PG 8 WC Chemistry, Physical SC Chemistry GA 143TS UT WOS:000318891700029 PM 23586650 ER PT J AU Feng, G Li, S Atchison, JS Presser, V Cummings, PT AF Feng, Guang Li, Song Atchison, Jennifer S. Presser, Volker Cummings, Peter T. TI Molecular Insights into Carbon Nanotube Supercapacitors: Capacitance Independent of Voltage and Temperature SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID ELECTRICAL DOUBLE-LAYER; IONIC LIQUID ELECTROLYTES; ONION-LIKE CARBON; DIFFERENTIAL CAPACITANCE; DYNAMICS SIMULATIONS; GRAPHITE-ELECTRODES; INTERFACE; SIZE; STORAGE AB Molecular dynamics (MD) simulations of supercapacitors with single-walled carbon nanotube (SWCNT) electrodes in room-temperature ionic liquids were performed to investigate the influences of the applied electrical potential, the radius/curvature of SWCNTs, and temperature on their capacitive behavior. It is found that (1) SWCNTs-based supercapacitors exhibit a near-flat capacitance-potential curve, (2) the capacitance increases as the tube radius decreases, and (3) the capacitance depends little on the temperature. We report the first MD study showing the influence of the electrode curvature on the capacitance-potential curve and negligible dependence of temperature on capacitance of tubular electrode. The latter is in good agreement with recent experimental findings and is attributed to the similarity of the electrical double layer (EDL) microstructure with temperature varying from 260 to 400 K. The electrode curvature effect is explained by the dominance of charge overscreening and increased ion density per unit area of electrode surface. C1 [Feng, Guang; Li, Song; Cummings, Peter T.] Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN 37235 USA. [Atchison, Jennifer S.; Presser, Volker] INM Leibniz Inst New Mat, D-66123 Saarbrucken, Germany. [Cummings, Peter T.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RP Cummings, PT (reprint author), Vanderbilt Univ, Dept Chem & Biomol Engn, 221 Kirkland Hall, Nashville, TN 37235 USA. EM peter.cummings@vanderbilt.edu RI Feng, Guang/D-8989-2011; Presser, Volker/F-1975-2010; Li, Song/D-1026-2013 OI Feng, Guang/0000-0001-6659-9181; Presser, Volker/0000-0003-2181-0590; FU Fluid Interface Reactions, Structures and Transport (FIRST) Center, an Energy Frontier Research Center; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; German Federal Ministry for Research and Education (BMBF) [03EK3013] FX This work was supported as part of the Fluid Interface Reactions, Structures and Transport (FIRST) Center, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. The authors acknowledge Dr. Oleg Borodin for graciously providing the APPLE&P force field parameters used in this work. The authors thank the National Energy Research Scientific Computing Center for providing computer time. G.F. appreciates the Palmetto Cluster at Clemson University for providing computer time to complete most simulations performed for this work. V.P. acknowledges funding from the German Federal Ministry for Research and Education (BMBF) in support of the nanoEES3D project (Award No. 03EK3013) as part of the strategic funding initiative energy storage framework. V.P. kindly thanks Prof. Eduard Arzt (INM) for his continuing support. NR 52 TC 28 Z9 28 U1 5 U2 83 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD MAY 9 PY 2013 VL 117 IS 18 BP 9178 EP 9186 DI 10.1021/jp403547k PG 9 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 143TV UT WOS:000318892000017 ER PT J AU Wilson, DP Sporleder, DP White, MG AF Wilson, Daniel P. Sporleder, David P. White, Michael G. TI Final State Distributions of the Radical Photoproducts from the UV Photooxidation of 2-Butanone on TiO2(110) SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID SINGLE-CRYSTAL SURFACE; PHOTOCATALYTIC DEHYDROGENATION; TIO2 PHOTOCATALYSIS; SEMICONDUCTOR PHOTOCATALYSIS; PHOTOELECTRON-SPECTRUM; TITANIUM-DIOXIDE; ACETONE; PHOTOIONIZATION; PHOTOCHEMISTRY; DISSOCIATION AB The UV photooxidation of 2-butanone on TiO2(110) was studied using pump-probe laser methods and time-of-flight (TOF) mass spectrometry to identify the gas-phase photoproducts and probe the dynamics of the photofragmentation process. A unique aspect of this work is the use of coherent VUV radiation for single-photon ionization detection of gas-phase products, which significantly reduces the amount of parent ion fragmentation as compared to electron impact used in previous studies. The pump-probe product mass spectra showed ions at mass 15 (CH3+) and mass 29 (C2H5+), which are associated with the primary alpha-carbon bond cleavage of the adsorbed butanone-oxygen complex, as well other C2Hx+ (x = 2-4) fragments, which could originate from ethyl radical secondary surface chemistry or dissociative ionization. Using two different VUV probe energies, it was possible to show that the fragment ions at mass 27 (C2H3+) and mass 28 (C2H3+) are not due to secondary reactions of ethyl radicals on the surface, but rather from dissociative ionization of the ethyl radical parent ion (mass 29). Another photoproduct at mass 26 (C2H2+) peak is also observed, but its pump-probe delay dependence indicates that it is not associated with nascent ethyl radicals. Pump-delayed-probe measurements were also used to obtain translational energy distributions for the methyl and ethyl radical products, both which can be empirically fit to "fast" and "slow" components. The ethyl radical energy distribution is dominated by the "slow" channel, whereas the methyl radical has a much larger contribution from "fast" fragments. The assignment of the C2Hx (x = 3, 4) fragments to ethyl (C2H5) dissociative ionization was also confirmed by showing that all three products have the same translational energy distributions. The origin of the "fast" and "slow" fragmentation channels for both methyl and ethyl ejection is discussed in terms of analogous neutral and ionic fragmentation processes in the gas phase. Finally, we consider the possible energetic and dynamical origins of the higher yield of ethyl radical products as compared to that for methyl radicals. C1 [Wilson, Daniel P.; Sporleder, David P.; White, Michael G.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [White, Michael G.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP White, MG (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. EM mgwhite@bnl.gov FU U.S. Department of Energy (Division of Chemical Sciences) [DE-AC02-98CH10086] FX The experiments were carried out in the Chemistry Department at Brookhaven National Laboratory under Contract No. DE-AC02-98CH10086 with the U.S. Department of Energy (Division of Chemical Sciences). NR 55 TC 6 Z9 6 U1 5 U2 40 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD MAY 9 PY 2013 VL 117 IS 18 BP 9290 EP 9300 DI 10.1021/jp401838r PG 11 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 143TV UT WOS:000318892000031 ER PT J AU Keskar, GD Podila, R Zhang, LH Rao, AM Pfefferle, LD AF Keskar, Gayatri D. Podila, Ramakrishna Zhang, Lihua Rao, Apparao M. Pfefferle, Lisa D. TI Synthesis and Raman Spectroscopy of Multiphasic Nanostructured Bi-Te Networks with Tailored Composition SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID BISMUTH TELLURIDE NANOWIRES; THERMOELECTRIC-MATERIALS; BI2TE3; ELECTRODEPOSITION; NANOPARTICLES; TEMPERATURE; NANOTUBES; NANORODS AB Development of synthetic routes to control the morphology and composition of nanostructured thermoelectric materials and to leverage their unique performance enhancements presents challenges in the realization of practical thermoelectric systems. We report here the fabrication of intricate networks of nanostructured tellurium, bismuth telluride, and bismuth-rich compounds with diverse morphologies. The nanostructured networks synthesized via solution-phase techniques consist of nanocrystalline Bi2Te3 with a grain size of about 15-20 nm, 3-5 nm thick rolled-up nanosheets of Te forming tubular structures, nanotubes of Bi2Te3 about 300-400 nm in diameter, Te and Bi4Te3 nanowires ranging from 50 to 200 nm diameter, and microspheres of 3-7 mu m diameter composed of self-assembled BiOCl nanorods. The formation and crystallinity of Bi-rich and Te-rich compounds were investigated using powder X-ray and electron back-scattered diffraction. We present the first detailed analysis of micro-Raman scattering of BixTey nanostructures of above morphologies using six different laser wavelengths. The BixTey nanostructures exhibit the most intense infrared (IR) active A(1u), mode at 120 cm(-1) in the Raman spectra, which disperses with a change in the chemical composition and laser power. In addition, we observe new internal strain-induced peaks in the Raman spectra of BixTey nanostructures. The rich morphologies and compositions present within the nanostructured Bi-Te compounds are expected to result in novel thermoelectric materials. C1 [Keskar, Gayatri D.; Pfefferle, Lisa D.] Yale Univ, Dept Chem Engn, New Haven, CT 06520 USA. [Podila, Ramakrishna; Rao, Apparao M.] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA. [Podila, Ramakrishna; Rao, Apparao M.] Clemson Univ, COMSET, Clemson, SC 29634 USA. [Zhang, Lihua] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Pfefferle, LD (reprint author), Yale Univ, Dept Chem Engn, POB 208286, New Haven, CT 06520 USA. EM lisa.pfefferle@yale.edu RI Zhang, Lihua/F-4502-2014; OI Podila, Ramakrishna/0000-0003-0472-2361 FU AFOSR (Weinstock, U. Texas, Dallas); U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]; AFOSR DURIP FX We gratefully acknowledge financial support from AFOSR (Weinstock, U. Texas, Dallas) and AFOSR DURIP for the T64000 triple Raman spectrometer. We thank Dr. Zhenting Jiang for assistance with the electron back-scattered diffraction measurements. We also acknowledge Prof. Jian He of Clemson University for his contribution toward this research project. Research was carried out (in whole or in part) at the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. NR 36 TC 4 Z9 4 U1 3 U2 79 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD MAY 9 PY 2013 VL 117 IS 18 BP 9446 EP 9455 DI 10.1021/jp402879h PG 10 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 143TV UT WOS:000318892000047 ER PT J AU Semczuk, M Li, X Gunton, W Haw, M Dattani, NS Witz, J Mills, AK Jones, DJ Madison, KW AF Semczuk, Mariusz Li, Xuan Gunton, Will Haw, Magnus Dattani, Nikesh S. Witz, Julien Mills, Arthur K. Jones, David J. Madison, Kirk W. TI High-resolution photoassociation spectroscopy of the Li-6(2) 1(3)Sigma(+)(g) state SO PHYSICAL REVIEW A LA English DT Article ID FOURIER-TRANSFORM SPECTROSCOPY; ULTRACOLD MOLECULES; DISSOCIATION-ENERGY; HYPERFINE-STRUCTURE; LI-7(2); ATOMS; COLD; UNCERTAINTY; TRANSITION; ASYMPTOTE AB We present experimental observations of seven vibrational levels, v' = 20-26, of the 1(3)Sigma(+)(g) excited state of Li-2 molecules by the photoassociation (PA) of a degenerate Fermi gas of Li-6 atoms. For each vibrational level, we resolve the rotational structure using a Feshbach resonance to enhance the PA rates from p-wave collisions. We also determine the spin-spin and spin-rotation interaction constants for this state. The absolute uncertainty of our measurements is +/- 0.00002 cm(-1) (+/- 600 kHz). We use this data to further refine an analytic potential for this state. C1 [Semczuk, Mariusz; Gunton, Will; Haw, Magnus; Witz, Julien; Mills, Arthur K.; Jones, David J.; Madison, Kirk W.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V5Z 1M9, Canada. [Li, Xuan] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Dattani, Nikesh S.] Univ Oxford, Dept Chem, Oxford OX1 3QZ, England. RP Semczuk, M (reprint author), Univ British Columbia, Dept Phys & Astron, Vancouver, BC V5Z 1M9, Canada. RI Li, Xuan/A-4945-2011; Jones, David/F-5859-2017; OI Li, Xuan/0000-0002-7646-1132; Haw, Magnus/0000-0001-5739-5160 FU Canadian Institute for Advanced Research (CIfAR); Natural Sciences and Engineering Research Council of Canada (NSERC/CRSNG); Canadian Foundation for Innovation (CFI); Clarendon Fund FX We gratefully acknowledge Takamasa Momose for the use of the Ti:sapphire laser. We also thank Robert J Le Roy for many helpful discussions, and Jim Mitroy for advice on which Cm values to use. The authors also acknowledge financial support from the Canadian Institute for Advanced Research (CIfAR), the Natural Sciences and Engineering Research Council of Canada (NSERC/CRSNG), and the Canadian Foundation for Innovation (CFI). N.S.D. also thanks the Clarendon Fund for financial support. NR 55 TC 12 Z9 12 U1 3 U2 24 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD MAY 9 PY 2013 VL 87 IS 5 AR 052505 DI 10.1103/PhysRevA.87.052505 PG 12 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 142AN UT WOS:000318768200002 ER PT J AU Potomkin, M Gyrya, V Aranson, I Berlyand, L AF Potomkin, M. Gyrya, V. Aranson, I. Berlyand, L. TI Collision of microswimmers in a viscous fluid SO PHYSICAL REVIEW E LA English DT Article ID SUSPENSIONS; PARTICLE; DYNAMICS; SURFACE; SPHERE; MOTION; FLOWS AB We investigate the effects of boundary conditions on the surface of self-propelled spherical swimmers moving in a viscous fluid with a low Reynolds number. We first show that collisions between the swimmers are impossible under the commonly used no-slip conditions. Next we demonstrate that collisions do occur if the more general Navier boundary conditions, allowing for a finite slip on the surface that produces drag, are imposed on the boundary of swimmers. The presence of a small inertia for each swimmer does not influence whether collisions occur between swimmers. C1 [Potomkin, M.; Berlyand, L.] Penn State Univ, Dept Math, University Pk, PA 16802 USA. [Gyrya, V.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Aranson, I.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Potomkin, M (reprint author), Penn State Univ, Dept Math, University Pk, PA 16802 USA. EM potomkin@math.psu.edu; vitaliy_gyrya@lanl.gov; aronson@anl.gov; berlyand@math.psu.edu RI Aranson, Igor/I-4060-2013; OI Gyrya, Vitaliy/0000-0002-5083-8878 FU US Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering [DE-AC02-06CH11357]; DOE [DE-FG02-08ER25862, DE-AC52-06NA25396] FX The work of I.S.A. was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering, under Contract No. DE-AC02-06CH11357. L.B. and M.P. were supported by the DOE Grant No. DE-FG02-08ER25862. V.G. was supported by DOE Grant No. DE-AC52-06NA25396. NR 30 TC 4 Z9 4 U1 0 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 J9 PHYS REV E JI Phys. Rev. E PD MAY 9 PY 2013 VL 87 IS 5 AR 053005 DI 10.1103/PhysRevE.87.053005 PG 8 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 142CR UT WOS:000318774400009 PM 23767618 ER PT J AU Gray, A Liu, Y Hong, H Chiang, TC AF Gray, A. Liu, Y. Hong, Hawoong Chiang, T. -C. TI X-ray diffraction studies of trilayer oscillations in the preferred thickness of In films on Si(111) SO PHYSICAL REVIEW B LA English DT Article ID SUPERCONDUCTIVITY; SURFACE; ISLANDS AB We report a surface x-ray diffraction study of the structure of In films grown on Si(111)-(7 x 7) and Si(111)-(root 3 x root 3)-In substrates at a low temperature (135 K). The (7 x 7) reconstruction of the clean Si(111) surface is found to persist upon burial by the In. X-ray reflectivity measurements yield patterns that deviate strongly from the ideal case; the results suggest a complex In film structure, possibly distorted by the corrugated interfacial reconstruction. By contrast, In films grown on the Si(111)-(root 3 x root 3)-In surface exhibit reflectivity data that are much closer to the ideal case. The films are found to grow approximately layer by layer, resulting in a relatively small roughness. Upon annealing, the films develop preferred thicknesses at 10, 13, and 16 monolayers (MLs). Previous photoemission studies revealed preferred thicknesses at 4 and 7 MLs. Putting these results together, the preferred thickness sequence, 4, 7, 10, 13, and 16 ML, establishes a trilayer oscillation period. This period is expected from the known electronic structure of In, and arises from quantum confinement of the In valence electrons. This is the second example, after the well-known bilayer period in Pb, which shows quantum oscillations over a wide range of film thickness. C1 [Gray, A.; Chiang, T. -C.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA. [Gray, A.; Chiang, T. -C.] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA. [Liu, Y.; Hong, Hawoong] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Gray, A (reprint author), Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA. RI Liu, Yang/I-2806-2012 OI Liu, Yang/0000-0001-6506-5903 FU US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-FG02-07ER46383, DE-AC02-06CH11357] FX This work is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Grant No. DE-FG02-07ER46383 (T.C.C.) and Contract No. DE-AC02-06CH11357 (operations of APS). NR 20 TC 5 Z9 5 U1 1 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 9 PY 2013 VL 87 IS 19 AR 195415 DI 10.1103/PhysRevB.87.195415 PG 5 WC Physics, Condensed Matter SC Physics GA 142AY UT WOS:000318769400006 ER PT J AU Liu, SH Hamilton, JH Ramayya, AV Zhu, SJ Shi, Y Xu, FR Batchelder, JC Brewer, NT Hwang, JK Luo, YX Rasmussen, JO Ma, WC Daniel, AV Ter-Akopian, GM Oganessian, YT AF Liu, S. H. Hamilton, J. H. Ramayya, A. V. Zhu, S. J. Shi, Y. Xu, F. R. Batchelder, J. C. Brewer, N. T. Hwang, J. K. Luo, Y. X. Rasmussen, J. O. Ma, W. C. Daniel, A. V. Ter-Akopian, G. M. Oganessian, Yu. Ts. TI New high-spin level scheme of neutron-rich Rh-112 SO PHYSICAL REVIEW C LA English DT Article ID ISOTOPES; NUCLEI; STATES; DEFORMATION; TRIAXIALITY; FISSION AB The neutron-rich nucleus Rh-112 has been reinvestigated by examining the prompt. rays emitted in the spontaneous fission of Cf-252 with the Gammasphere detector array. A new side band was built in 112Rh. Total Routhian surface calculations have been performed and confirm the role of triaxiality in the negative-parity structure of Rh-112. C1 [Liu, S. H.; Batchelder, J. C.] Oak Ridge Associated Univ, UNIRIB, Oak Ridge, TN 37831 USA. [Liu, S. H.; Hamilton, J. H.; Ramayya, A. V.; Brewer, N. T.; Hwang, J. K.; Luo, Y. X.; Daniel, A. V.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. [Zhu, S. J.] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. [Shi, Y.] Peking Univ, Sch Phys, Beijing 100871, Peoples R China. [Luo, Y. X.; Rasmussen, J. O.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Ma, W. C.] Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS 39762 USA. [Daniel, A. V.; Ter-Akopian, G. M.; Oganessian, Yu. Ts.] Joint Inst Nucl Res, RU-141980 Dubna, Russia. [Daniel, A. V.] Joint Inst Heavy Ion Res, Oak Ridge, TN 37830 USA. RP Liu, SH (reprint author), Oak Ridge Associated Univ, UNIRIB, Oak Ridge, TN 37831 USA. RI Xu, Furong/K-4178-2013; OI Hwang, Jae-Kwang/0000-0002-4100-3473 FU US Department of Energy [DE-AC05-76OR00033, DE-FG05-88ER40407, DE-FG02-95ER40939, DE-AC03-76SF00098]; National Natural Science Foundation of China [11175095, 10775078]; Chinese Major State Basic Research Development Program [2007CB815005] FX The work at UNIRIB/Oak Ridge Associated Universities, Vanderbilt University, Mississippi State University, and Lawrence Berkeley National Laboratory is supported by the US Department of Energy under Grant and Contract Nos. DE-AC05-76OR00033, DE-FG05-88ER40407, DE-FG02-95ER40939, and DE-AC03-76SF00098. The work at Tsinghua University is supported by the National Natural Science Foundation of China under Grant Nos. 11175095 and 10775078 and the Chinese Major State Basic Research Development Program through Grant No. 2007CB815005. NR 29 TC 5 Z9 5 U1 0 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD MAY 9 PY 2013 VL 87 IS 5 AR 057302 DI 10.1103/PhysRevC.87.057302 PG 4 WC Physics, Nuclear SC Physics GA 142BG UT WOS:000318770400005 ER PT J AU Yoonessi, M Scheiman, DA Dittler, M Peck, JA Ilavsky, J Gaier, JR Meador, MA AF Yoonessi, Mitra Scheiman, Daniel A. Dittler, Matthew Peck, John A. Ilavsky, Jan Gaier, James R. Meador, Michael A. TI High-temperature multifunctional rnagnetoactive nickel graphene polyimide nanocomposites SO POLYMER LA English DT Article DE Polymer nanocomposites; Hybrid nanoparticles; Polymer actuators ID SHAPE-MEMORY; FUNCTIONALIZED GRAPHENE; LAYER GRAPHENE; OXIDE; NANOPARTICLES; ACTUATORS; COMPOSITE; GRAPHITE; SCATTERING; FILMS AB Composite Nickel graphene nanoparticles with hybrid magnetic and electrical properties were prepared. Nickel nanoparticles were tethered to the graphene through a carbon layers and were covered with an amorphous carbon layer to protect them from oxidation. Ni-graphene polyimide nanocomposites were prepared and exhibited magnetic characteristics and high electrical conductivity. The saturation magnetization of the polyimide nanocomposites increased with increasing magnetic nanoparticle content. First order reversal curve (FORC) magnetization showed a bimodal size distribution of the magnetic nanoparticles. Ultra-small-angle X-ray scattering (USAXS) of the nickel nanoparticles in Ni-graphene polyimide nanocomposites were estimated by a sphere model with bimodal size distribution. Nickel graphene nanoparticles were examined by high-resolution transmission electron microscopy (HR-TEM) where two size ranges of nickel were observed. Ni-graphene nanoparticles were well dispersed in the polyimide resin when examined by HR-TEM. Ni-graphene polyimide nanocomposites exhibited magnetic actuation when exposed to a static magnetic field. (C) 2013 Elsevier Ltd. All rights reserved. C1 [Yoonessi, Mitra] Ohio Aerosp Inst, Cleveland, OH 44142 USA. [Scheiman, Daniel A.] ASRC, Cleveland, OH 44135 USA. [Dittler, Matthew; Gaier, James R.; Meador, Michael A.] NASA, Glenn Res Ctr, Cleveland, OH 44135 USA. [Peck, John A.] Univ Akron, Dept Polymer Engn, Akron, OH 44325 USA. [Ilavsky, Jan] Argonne Natl Lab, Argonne, IL 60439 USA. RP Yoonessi, M (reprint author), Ohio Aerosp Inst, 22800 Cedar Point Rd, Cleveland, OH 44142 USA. EM mitra.yoonessi@gmail.com RI USAXS, APS/D-4198-2013 FU Subsonics Fixed Wing Project, Fundamental Aeronautics Program under NASA [NNC07BA13B]; National Science Foundation/Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This research was funded by the Subsonics Fixed Wing Project, Fundamental Aeronautics Program under NASA Contract NNC07BA13B. We appreciate the support of Dave Hull, Anna Palczer of NASA-GRC for the TEM and high temperature TGA. Richard Rogers is thanked for his wide angle X-ray scattering support. We express our appreciation to the Advanced Photon Source, Argonne National Laboratory, for providing the access to the USAXS beamline. ChemMatCARS Sector 15 is principally supported by National Science Foundation/Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The NASA-GRC USRP program, Dave Kankam, is greatly appreciated for the student support. NR 56 TC 10 Z9 11 U1 8 U2 119 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0032-3861 EI 1873-2291 J9 POLYMER JI Polymer PD MAY 9 PY 2013 VL 54 IS 11 BP 2776 EP 2784 DI 10.1016/j.polymer.2013.03.015 PG 9 WC Polymer Science SC Polymer Science GA 141TB UT WOS:000318748300021 ER PT J AU Smedley, D Oellrich, A Kohler, S Ruef, B Westerfield, M Robinson, P Lewis, S Mungall, C AF Smedley, Damian Oellrich, Anika Koehler, Sebastian Ruef, Barbara Westerfield, Monte Robinson, Peter Lewis, Suzanna Mungall, Christopher CA Sanger Mouse Genetics Project TI PhenoDigm: analyzing curated annotations to associate animal models with human diseases SO DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION LA English DT Article ID PHENOTYPE ONTOLOGY; PALMOPLANTAR KERATODERMA; GENE PRIORITIZATION; MOUSE; MUTATIONS; PERSPECTIVES; DISCOVERY; RESOURCE; SUPPORT; UPDATE AB The ultimate goal of studying model organisms is to translate what is learned into useful knowledge about normal human biology and disease to facilitate treatment and early screening for diseases. Recent advances in genomic technologies allow for rapid generation of models with a range of targeted genotypes as well as their characterization by high-throughput phenotyping. As an abundance of phenotype data become available, only systematic analysis will facilitate valid conclusions to be drawn from these data and transferred to human diseases. Owing to the volume of data, automated methods are preferable, allowing for a reliable analysis of the data and providing evidence about possible gene-disease associations. Here, we propose Phenotype comparisons for DIsease Genes and Models (PhenoDigm), as an automated method to provide evidence about gene-disease associations by analysing phenotype information. PhenoDigm integrates data from a variety of model organisms and, at the same time, uses several intermediate scoring methods to identify only strongly data-supported gene candidates for human genetic diseases. We show results of an automated evaluation as well as selected manually assessed examples that support the validity of PhenoDigm. Furthermore, we provide guidance on how to browse the data with PhenoDigm's web interface and illustrate its usefulness in supporting research. C1 [Smedley, Damian; Oellrich, Anika] Wellcome Trust Sanger Inst, Mouse Informat Grp, Cambridge CB10 1SA, England. [Koehler, Sebastian; Robinson, Peter] Univ Klinikum Charite, Inst Med Genet & Human Genet, Computat Biol Grp, D-13353 Berlin, Germany. [Ruef, Barbara; Westerfield, Monte] 1254 Univ Oregon, Univ Oregon, Dept Biol, Eugene, OR 97403 USA. [Sanger Mouse Genetics Project] Wellcome Trust Sanger Inst, Mouse Genet Project, Cambridge CB10 1SA, England. [Lewis, Suzanna; Mungall, Christopher] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Genom Div, Berkeley, CA 94720 USA. RP Smedley, D (reprint author), Wellcome Trust Sanger Inst, Mouse Informat Grp, Wellcome Trust Genome Campus, Cambridge CB10 1SA, England. EM ds5@sanger.ac.uk OI Ruef, Barbara/0000-0001-8690-979X; Robinson, Peter/0000-0002-0736-9199; Lewis, Suzanna/0000-0002-8343-612X; Kohler, Sebastian/0000-0002-5316-1399 FU Wellcome Trust; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]; National Institutes of Health [HG004838-02] FX This work was supported by core infrastructure funding from the Wellcome Trust, the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [Contract No. DE-AC02-05CH11231] and the National Institutes of Health [R01 grant HG004838-02]. Funding for open access charge: core infrastructure funding from the Wellcome Trust. NR 38 TC 31 Z9 31 U1 0 U2 5 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 1758-0463 J9 DATABASE-OXFORD JI Database PD MAY 9 PY 2013 AR bat025 DI 10.1093/database/bat025 PG 11 WC Mathematical & Computational Biology SC Mathematical & Computational Biology GA 139PZ UT WOS:000318597300001 ER PT J AU Gaffney, LP Butler, PA Scheck, M Hayes, AB Wenander, F Albers, M Bastin, B Bauer, C Blazhev, A Bonig, S Bree, N Cederkall, J Chupp, T Cline, D Cocolios, TE Davinson, T DeWitte, H Diriken, J Grahn, T Herzan, A Huyse, M Jenkins, DG Joss, DT Kesteloot, N Konki, J Kowalczyk, M Kroll, T Kwan, E Lutter, R Moschner, K Napiorkowski, P Pakarinen, J Pfeiffer, M Radeck, D Reiter, P Reynders, K Rigby, SV Robledo, LM Rudigier, M Sambi, S Seidlitz, M Siebeck, B Stora, T Thoele, P Van Duppen, P Vermeulen, MJ von Schmid, M Voulot, D Warr, N Wimmer, K Wrzosek-Lipska, K Wu, CY Zielinska, M AF Gaffney, L. P. Butler, P. A. Scheck, M. Hayes, A. B. Wenander, F. Albers, M. Bastin, B. Bauer, C. Blazhev, A. Boenig, S. Bree, N. Cederkall, J. Chupp, T. Cline, D. Cocolios, T. E. Davinson, T. DeWitte, H. Diriken, J. Grahn, T. Herzan, A. Huyse, M. Jenkins, D. G. Joss, D. T. Kesteloot, N. Konki, J. Kowalczyk, M. Kroell, Th. Kwan, E. Lutter, R. Moschner, K. Napiorkowski, P. Pakarinen, J. Pfeiffer, M. Radeck, D. Reiter, P. Reynders, K. Rigby, S. V. Robledo, L. M. Rudigier, M. Sambi, S. Seidlitz, M. Siebeck, B. Stora, T. Thoele, P. Van Duppen, P. Vermeulen, M. J. von Schmid, M. Voulot, D. Warr, N. Wimmer, K. Wrzosek-Lipska, K. Wu, C. Y. Zielinska, M. TI Studies of pear-shaped nuclei using accelerated radioactive beams SO NATURE LA English DT Article ID REFLECTION-ASYMMETRIC NUCLEI; E4 TRANSITION MOMENTS; COULOMB-EXCITATION; ACTINIDE NUCLEI; DIPOLE-MOMENTS; DATA SHEETS; STATES; QUADRUPOLE; ISOTOPES; DETECTOR AB There is strong circumstantial evidence that certain heavy, unstable atomic nuclei are 'octupole deformed', that is, distorted into a pear shape. This contrasts with the more prevalent rugby-ball shape of nuclei with reflection-symmetric, quadrupole deformations. The elusive octupole deformed nuclei are of importance for nuclear structure theory, and also in searches for physics beyond the standard model; any measurable electric-dipole moment (a signature of the latter) is expected to be amplified in such nuclei. Here we determine electric octupole transition strengths (a direct measure of octupole correlations) for short-lived isotopes of radon and radium. Coulomb excitation experiments were performed using accelerated beams of heavy, radioactive ions. Our data on Rn-220 and Ra-224 show clear evidence for stronger octupole deformation in the latter. The results enable discrimination between differing theoretical approaches to octupole correlations, and help to constrain suitable candidates for experimental studies of atomic electric-dipole moments that might reveal extensions to the standard model. C1 [Gaffney, L. P.; Butler, P. A.; Scheck, M.; Joss, D. T.; Rigby, S. V.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England. [Scheck, M.; Bauer, C.; Boenig, S.; Kroell, Th.; von Schmid, M.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany. [Hayes, A. B.; Cline, D.] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA. [Wenander, F.; Cocolios, T. E.; Pakarinen, J.; Stora, T.; Voulot, D.] CERN Org Europeenne Rech Nucl, ISOLDE, CH-1211 Geneva, Switzerland. [Albers, M.; Blazhev, A.; Moschner, K.; Pfeiffer, M.; Radeck, D.; Reiter, P.; Rudigier, M.; Seidlitz, M.; Siebeck, B.; Thoele, P.; Warr, N.] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany. [Bastin, B.] GANIL, F-14076 Caen, France. [Bree, N.; DeWitte, H.; Diriken, J.; Huyse, M.; Kesteloot, N.; Reynders, K.; Sambi, S.; Van Duppen, P.; Wrzosek-Lipska, K.] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium. [Cederkall, J.] Lund Univ, Dept Nucl Phys, S-22100 Lund, Sweden. [Chupp, T.] Univ Michigan, Dept Phys, Ann Arbor, MI 48104 USA. [Davinson, T.] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland. [Diriken, J.; Kesteloot, N.] Ctr Etud Energie Nucl, SCK CEN Studiectr Kernenergie, B-2400 Mol, Belgium. [Grahn, T.; Herzan, A.; Konki, J.; Pakarinen, J.] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland. [Grahn, T.; Herzan, A.; Konki, J.; Pakarinen, J.] Helsinki Inst Phys, FI-00014 Helsinki, Finland. [Jenkins, D. G.; Vermeulen, M. J.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England. [Kowalczyk, M.; Napiorkowski, P.; Wrzosek-Lipska, K.; Zielinska, M.] Univ Warsaw, Heavy Ion Lab, PL-02093 Warsaw, Poland. [Kwan, E.; Wu, C. Y.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94551 USA. [Lutter, R.] Univ Munich, Maier Leibnitz Lab, D-85748 Garching, Germany. [Lutter, R.] Tech Univ Munich, D-85748 Garching, Germany. [Robledo, L. M.] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain. [Wimmer, K.] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany. [Zielinska, M.] CEA Saclay, DSM IRFU SPhN, F-91191 Gif Sur Yvette, France. RP Butler, PA (reprint author), Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England. EM peter.butler@liverpool.ac.uk RI Pakarinen, Janne/F-6695-2010; Gaffney, Liam/G-3169-2014; Robledo, Luis Miguel/L-2557-2013; OI Pakarinen, Janne/0000-0001-8944-8757; Gaffney, Liam/0000-0002-2938-3696; Robledo, Luis Miguel/0000-0002-6061-1319; Scheck, Marcus/0000-0002-9624-3909; Butler, Peter/0000-0001-6080-9205 FU ISOLDE; STFC (UK); BMBF(Germany) [05P12RDCIA, 06DA9036I, 06KY9136I, 06KY205I]; HIC for FAIR (Germany); FWO-Vlaanderen (Belgium); Belgian Science Policy Office (IAP-BriX network) [P7/12]; Academy of Finland [131665]; DOE (US) [DE-AC52-07NA27344, DE-FG02-04ER41331]; NSF (US); MICINN (Spain) [FPA2009-08958, FIS2009-07277]; Consolider-Ingenio Programmes (Spain) [CPAN CSD2007-00042, MULTIDARK CSD2009-00064]; Polish Ministry for Science and Higher Education [589/N-G-POOL/2009/0]; EC via I3-EURONS (FP6) [RII3-CT-2004-506065]; MC Fellowship scheme (FP7) [PIEF-GA-2008-219175]; IA-ENSAR (FP7) [262010] FX The support of the ISOLDE Collaboration and technical teams is acknowledged. This work was supported by the following Research Councils: STFC (UK), BMBF(Germany; 05P12RDCIA, 06DA9036I, 06KY9136I and 06KY205I), HIC for FAIR (Germany), FWO-Vlaanderen (Belgium), Belgian Science Policy Office (IAP-BriX network P7/12), Academy of Finland (contract no. 131665), DOE (US; DE-AC52-07NA27344 and DE-FG02-04ER41331), NSF (US), MICINN (Spain; FPA2009-08958 and FIS2009-07277), Consolider-Ingenio 2010 Programmes (Spain; CPAN CSD2007-00042 and MULTIDARK CSD2009-00064), Polish Ministry for Science and Higher Education (grant no. 589/N-G-POOL/2009/0), EC via I3-EURONS (FP6 contract no. RII3-CT-2004-506065), MC Fellowship scheme (FP7 contract PIEF-GA-2008-219175) and IA-ENSAR (FP7 contract 262010). NR 50 TC 93 Z9 93 U1 5 U2 65 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD MAY 9 PY 2013 VL 497 IS 7448 BP 199 EP 204 DI 10.1038/nature12073 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 139CD UT WOS:000318558200028 PM 23657348 ER PT J AU Lin, F Nordlund, D Weng, TC Sokaras, D Jones, KM Reed, RB Gillaspie, DT Weir, DGJ Moore, RG Dillon, AC Richards, RM Engtrakul, C AF Lin, Feng Nordlund, Dennis Weng, Tsu-Chien Sokaras, Dimosthenis Jones, Kim M. Reed, Rob B. Gillaspie, Dane T. Weir, Douglas G. J. Moore, Rob G. Dillon, Anne C. Richards, Ryan M. Engtrakul, Chaiwat TI Origin of Electrochromism in High-Performing Nanocomposite Nickel Oxide SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE electrochromism; multicomponent; nickel oxide; X-ray absorption spectroscopy; lithium intercalation ID X-RAY-ABSORPTION; RECHARGEABLE LITHIUM BATTERIES; THIN-FILMS; TUNGSTEN-OXIDE; DOPED NIO; WINDOWS; HOLES; SPECTROSCOPY; ELECTRODES; NANOTUBES AB Electrochromic effects of transition metal oxides provide a great platform for studying lithium intercalation chemistry in solids. Herein, we report on an electronically modified nanocomposite nickel oxide (i.e., Li2.34NiZr0.28Ox) that exhibits significantly improved electrochromic performance relative to the state-of-the-art inorganic electrochromic metal oxides in terms of charge/discharge kinetics, bleached-state transparency, and optical modulation. The knowledge obtained from O K-edge X-ray absorption spectroscopy (XAS) and X-ray photoelectron spectroscopy (XPS) suggests that the internally grown lithium peroxide (i.e., Li2O2) species plays a major role in facilitating charge transfer thus enabling optimal electrochromic performance. This understanding is relevant to recent theoretical studies concerning conductivity in Li2O2 for lithium air batteries (as cited in the main text). Furthermore, we elucidate the electrochromism in modified nickel oxide in lithium ion electrolyte with the aid of Ni K-edge XAS and Ni L-edge XAS studies. The electrochromism in the nickel oxide materials arises from the reversible formation of hole states on the NiO6 units, which then impacts the Ni oxidation state through the Ni3d-O2p hybridization states. This study sheds light on the lithium intercalation chemistry for general energy storage and semiconductor applications. C1 [Lin, Feng; Jones, Kim M.; Gillaspie, Dane T.; Dillon, Anne C.; Engtrakul, Chaiwat] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Lin, Feng; Richards, Ryan M.] Colorado Sch Mines, Mat Sci Program, Golden, CO 80401 USA. [Reed, Rob B.; Richards, Ryan M.] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA. [Nordlund, Dennis; Weng, Tsu-Chien; Sokaras, Dimosthenis] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA. [Moore, Rob G.] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA. [Weir, Douglas G. J.] SAGE Electrochrom Inc, Faribault, MN 55021 USA. RP Engtrakul, C (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM chaiwat.engtrakul@nrel.gov RI Sokaras, Dimosthenis/G-6037-2010; Richards, Ryan/B-3513-2008; Nordlund, Dennis/A-8902-2008 OI Sokaras, Dimosthenis/0000-0001-8117-1933; Nordlund, Dennis/0000-0001-9524-6908 FU U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy Laboratory as part of the DOE Office of Energy Efficiency and Renewable Energy Office of Building Technologies Program FX This paper is dedicated to the loving memory of Anne C. Dillon. This research was supported by the U.S. Department of Energy under Contract DE-AC36-08-GO28308 with the National Renewable Energy Laboratory as part of the DOE Office of Energy Efficiency and Renewable Energy Office of Building Technologies Program. Portions of this research were carried out at the Stanford Synchrotron Radiation Laboratory, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. NR 44 TC 34 Z9 34 U1 9 U2 166 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1944-8244 J9 ACS APPL MATER INTER JI ACS Appl. Mater. Interfaces PD MAY 8 PY 2013 VL 5 IS 9 BP 3643 EP 3649 DI 10.1021/am400105y PG 7 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA 143AQ UT WOS:000318839100023 PM 23547738 ER PT J AU Kim, S Kim, JK Gao, J Song, JH An, HJ You, TS Lee, TS Jeong, JR Lee, ES Jeong, JH Beard, MC Jeong, S AF Kim, Sarah Kim, Jun Kwan Gao, Jianbo Song, Jung Hoon An, Hey Jin You, Tae-Soo Lee, Tae-Soo Jeong, Jong-Ryul Lee, Eung-Sug Jeong, Jun-Ho Beard, Matthew C. Jeong, Sohee TI Lead Sulfide Nanocrystal Quantum Dot Solar Cells with Trenched ZnO Fabricated via Nanoimprinting SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE quantum dot solar cells; lead sulfide quantum dots; nanoimprinting; patterned ZnO; depleted heterojunction; nanostructured interface ID PHOTOVOLTAICS; 2-NITROBENZALDEHYDE; NANOPARTICLES; ENHANCEMENT; FILMS; OXIDE AB The improvement of power conversion efficiency, especially current density (J(sc)), for nanocrystal quantum dot based heterojunction solar cells was realized by employing a trenched ZnO film fabricated using nanoimprint techniques. For an optimization of ZnO patterns, various patterned ZnO films were investigated using electrical and optical analysis methods by varying the line width, interpattern distance, pattern height, and residual layer. Analyzing the features of patterned ZnO films allowed us to simultaneously optimize both the pronounced electrical effects as well as optical properties. Consequently, we achieved an enhancement in J(sc) from 7.82 to 12.5 mA cm(-2) by adopting the patterned ZnO with optimized trenched shape. C1 [Kim, Sarah; Kim, Jun Kwan; Song, Jung Hoon; An, Hey Jin; Lee, Eung-Sug; Jeong, Jun-Ho; Jeong, Sohee] Korea Inst Machinery & Mat, Nanomech Syst Res Div, Taejon 305343, South Korea. [Gao, Jianbo; Beard, Matthew C.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Lee, Tae-Soo; Jeong, Jong-Ryul] Chungnam Natl Univ, Grad Sch Green Energy Technol, Dept Mat Sci & Engn, Taejon 305764, South Korea. [Song, Jung Hoon] Korea Adv Inst Sci & Technol, Grad Sch Nanosci & Technol WCU, Taejon 305701, South Korea. [An, Hey Jin; You, Tae-Soo] Chungbuk Natl Univ, Dept Chem, Chungbuk 361763, South Korea. RP Jeong, S (reprint author), Korea Inst Machinery & Mat, Nanomech Syst Res Div, Taejon 305343, South Korea. EM sjeong@kimm.re.kr RI GAO, JIANBO/A-3923-2011; GAO, JIANBO/A-1633-2014; Beard, MATTHEW/E-4270-2015; OI Beard, MATTHEW/0000-0002-2711-1355; Jeong, Sohee/0000-0002-9863-1374 FU Global Frontier R&D Program by the Center for Multiscale Energy Systems; National Research Foundation (NRF) under the Ministry of Education, Science, and Technology [2011-0031566]; KIMM; NRF [2012-043865]; Center for Advanced Solar Photophysics, an Energy Frontier Research Center; US Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences; DOE [DE-AC36-08G028308] FX This work was supported by the Global Frontier R&D Program by the Center for Multiscale Energy Systems funded by the National Research Foundation (NRF) under the Ministry of Education, Science, and Technology (2011-0031566) and the basic research fund from KIMM. T.-S.L. and J.-R.J. were supported by the NRF (No. 2012-043865). J.G. and M.C.B. were supported by the Center for Advanced Solar Photophysics, an Energy Frontier Research Center funded by the US Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences. DOE funding was provided to the NREL through Contract No. DE-AC36-08G028308. NR 26 TC 12 Z9 12 U1 0 U2 46 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1944-8244 J9 ACS APPL MATER INTER JI ACS Appl. Mater. Interfaces PD MAY 8 PY 2013 VL 5 IS 9 BP 3803 EP 3808 DI 10.1021/am400443w PG 6 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA 143AQ UT WOS:000318839100044 PM 23581816 ER PT J AU Gong, P Kortus, MG Nix, JC Davis, RE Peersen, OB AF Gong, Peng Kortus, Matthew G. Nix, Jay C. Davis, Ralph E. Peersen, Olve B. TI Structures of Coxsackievirus, Rhinovirus, and Poliovirus Polymerase Elongation Complexes Solved by Engineering RNA Mediated Crystal Contacts SO PLOS ONE LA English DT Article ID KINETIC-ANALYSIS; FIDELITY; VIRUS; MECHANISM; REPLICATION; 3D(POL); TRANSLOCATION; POPULATION; INITIATION; DIVERSITY AB RNA-dependent RNA polymerases play a vital role in the growth of RNA viruses where they are responsible for genome replication, but do so with rather low fidelity that allows for the rapid adaptation to different host cell environments. These polymerases are also a target for antiviral drug development. However, both drug discovery efforts and our understanding of fidelity determinants have been hampered by a lack of detailed structural information about functional polymerase-RNA complexes and the structural changes that take place during the elongation cycle. Many of the molecular details associated with nucleotide selection and catalysis were revealed in our recent structure of the poliovirus polymerase-RNA complex solved by first purifying and then crystallizing stalled elongation complexes. In the work presented here we extend that basic methodology to determine nine new structures of poliovirus, coxsackievirus, and rhinovirus elongation complexes at 2.2-2.9 A resolution. The structures highlight conserved features of picornaviral polymerases and the interactions they make with the template and product RNA strands, including a tight grip on eight basepairs of the nascent duplex, a fully pre-positioned templating nucleotide, and a conserved binding pocket for the +2 position template strand base. At the active site we see a pre-bound magnesium ion and there is conservation of a non-standard backbone conformation of the template strand in an interaction that may aid in triggering RNA translocation via contact with the conserved polymerase motif B. Moreover, by engineering plasticity into RNA-RNA contacts, we obtain crystal forms that are capable of multiple rounds of in-crystal catalysis and RNA translocation. Together, the data demonstrate that engineering flexible RNA contacts to promote crystal lattice formation is a versatile platform that can be used to solve the structures of viral RdRP elongation complexes and their catalytic cycle intermediates. C1 [Gong, Peng; Kortus, Matthew G.; Peersen, Olve B.] Colorado State Univ, Dept Biochem & Mol Biol, Ft Collins, CO 80523 USA. [Nix, Jay C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Mol Biol Consortium, Berkeley, CA 94720 USA. [Davis, Ralph E.] Cocrystal Discovery Inc, Mountain View, CA USA. RP Peersen, OB (reprint author), Colorado State Univ, Dept Biochem & Mol Biol, Ft Collins, CO 80523 USA. EM Olve.Peersen@ColoState.edu RI Peersen, Olve/P-5587-2016 FU National Institutes of Health [R01-AI059130] FX This work was supported by National Institutes of Health research grant R01-AI059130 to O.B.P. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 42 TC 22 Z9 22 U1 2 U2 12 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD MAY 8 PY 2013 VL 8 IS 5 AR e60272 DI 10.1371/journal.pone.0060272 PG 14 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 145YI UT WOS:000319055600004 PM 23667424 ER PT J AU Oliver, RC Lipfert, J Fox, DA Lo, RH Doniach, S Columbus, L AF Oliver, Ryan C. Lipfert, Jan Fox, Daniel A. Lo, Ryan H. Doniach, Sebastian Columbus, Linda TI Dependence of Micelle Size and Shape on Detergent Alkyl Chain Length and Head Group SO PLOS ONE LA English DT Article ID MOLECULAR-DYNAMICS SIMULATIONS; ADVANCED PHOTON SOURCE; ANGLE X-RAY; MEMBRANE-PROTEINS; SCATTERING; LIPIDS; PURIFICATION; VESICLES; MODEL; WATER AB Micelle-forming detergents provide an amphipathic environment that can mimic lipid bilayers and are important tools for solubilizing membrane proteins for functional and structural investigations in vitro. However, the formation of a soluble protein-detergent complex (PDC) currently relies on empirical screening of detergents, and a stable and functional PDC is often not obtained. To provide a foundation for systematic comparisons between the properties of the detergent micelle and the resulting PDC, a comprehensive set of detergents commonly used for membrane protein studies are systematically investigated. Using small-angle X-ray scattering (SAXS), micelle shapes and sizes are determined for phosphocholines with 10, 12, and 14 alkyl carbons, glucosides with 8, 9, and 10 alkyl carbons, maltosides with 8, 10, and 12 alkyl carbons, and lysophosphatidyl glycerols with 14 and 16 alkyl carbons. The SAXS profiles are well described by two-component ellipsoid models, with an electron rich outer shell corresponding to the detergent head groups and a less electron dense hydrophobic core composed of the alkyl chains. The minor axis of the elliptical micelle core from these models is constrained by the length of the alkyl chain, and increases by 1.2-1.5 angstrom per carbon addition to the alkyl chain. The major elliptical axis also increases with chain length; however, the ellipticity remains approximately constant for each detergent series. In addition, the aggregation number of these detergents increases by similar to 16 monomers per micelle for each alkyl carbon added. The data provide a comprehensive view of the determinants of micelle shape and size and provide a baseline for correlating micelle properties with protein-detergent interactions. C1 [Oliver, Ryan C.; Fox, Daniel A.; Lo, Ryan H.; Columbus, Linda] Univ Virginia, Dept Chem, Charlottesville, VA 22903 USA. [Lipfert, Jan] Delft Univ Technol, Kavli Inst Nanosci, Dept Bionanosci, Delft, Netherlands. [Doniach, Sebastian] Stanford Univ, Dept Phys, Biophys Program, Stanford, CA 94305 USA. [Doniach, Sebastian] Stanford Univ, Dept Appl Phys, Biophys Program, Stanford, CA 94305 USA. [Doniach, Sebastian] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA. RP Columbus, L (reprint author), Univ Virginia, Dept Chem, Charlottesville, VA 22903 USA. EM columbus@virginia.edu OI Columbus, Linda/0000-0002-2574-0561 FU National Science Foundation CAREER award [MCB 0845668]; Netherlands Organisation for Scientific Research (NWO); U.S. DOE [DE-AC02-06CH11357] FX This research was funded by the National Science Foundation CAREER award (MCB 0845668), and supported by the Netherlands Organisation for Scientific Research (NWO). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.; The authors thank Sonke Seifert for help with data collection at the Advanced Photon Source of Argonne National Laboratories and Dr. Alison Dewald for helpful comments on the manuscript. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. NR 47 TC 39 Z9 39 U1 4 U2 78 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD MAY 8 PY 2013 VL 8 IS 5 AR e62488 DI 10.1371/journal.pone.0062488 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 145YI UT WOS:000319055600027 PM 23667481 ER PT J AU Gibb, AL Alem, N Chen, JH Erickson, KJ Ciston, J Gautam, A Linck, M Zettl, A AF Gibb, Ashley L. Alem, Nasim Chen, Jian-Hao Erickson, Kristopher J. Ciston, Jim Gautam, Abhay Linck, Martin Zettl, Alex TI Atomic Resolution Imaging of Grain Boundary Defects in Monolayer Chemical Vapor Deposition-Grown Hexagonal Boron Nitride SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID ELECTRON-MICROSCOPY; GRAPHENE; HETEROSTRUCTURES; TRANSPORT; PENTAGON AB Grain boundaries are observed and characterized in chemical vapor deposition-grown sheets of hexagonal boron nitride (h-BN) via ultra-high-resolution transmission electron microscopy at elevated temperature. Five- and seven-fold defects are readily observed along the grain boundary. Dynamics of strained regions and grain boundary defects are resolved. The defect structures and the resulting out-of-plane warping are consistent with recent theoretical model predictions for grain boundaries in h-BN. C1 [Gibb, Ashley L.; Erickson, Kristopher J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Gibb, Ashley L.; Alem, Nasim; Chen, Jian-Hao; Erickson, Kristopher J.; Zettl, Alex] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Gibb, Ashley L.; Alem, Nasim; Chen, Jian-Hao; Erickson, Kristopher J.; Zettl, Alex] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Ciston, Jim; Gautam, Abhay; Linck, Martin] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA. RP Zettl, A (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM azettl@physics.berkeley.edu RI Chen, Jian-Hao/C-6983-2009; Foundry, Molecular/G-9968-2014; Zettl, Alex/O-4925-2016 OI Chen, Jian-Hao/0000-0002-9485-1759; Zettl, Alex/0000-0001-6330-136X FU Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05CH11231]; Office of Naval Research under MURI [N00014-09-1-1066]; Air Force Office of Scientific Research [FA9950-10-1-0451]; NSF FX This work was supported in part by the Director, Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract #DE-AC02-05CH11231 which provided for detailed TEAM imaging at the National Center for Electron Microscopy; the Office of Naval Research under MURI award N00014-09-1-1066 which provided for postdoctoral support for image analysis; and the Air Force Office of Scientific Research under grant #FA9950-10-1-0451 which provided for KM synthesis. AG acknowledges support from an NSF graduate research fellowship. NR 35 TC 65 Z9 67 U1 8 U2 155 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD MAY 8 PY 2013 VL 135 IS 18 BP 6758 EP 6761 DI 10.1021/ja400637n PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 143AS UT WOS:000318839300005 PM 23550733 ER PT J AU Heberle, FA Petruzielo, RS Pan, J Drazba, P Kucerka, N Standaert, RF Feigenson, GW Katsaras, J AF Heberle, Frederick A. Petruzielo, Robin S. Pan, Jianjun Drazba, Paul Kucerka, Norbert Standaert, Robert F. Feigenson, Gerald W. Katsaras, John TI Bilayer Thickness Mismatch Controls Domain Size in Model Membranes SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID SMALL-ANGLE NEUTRON; PHASE-SEPARATION; LIPID-MEMBRANES; LINE TENSION; SCATTERING; BIOMEMBRANES; NANODOMAINS; CURVATURE; MIXTURES; PROTEINS AB The observation of lateral phase separation in lipid bilayers has received considerable attention, especially in connection to lipid raft phenomena in cells. It is widely accepted that rafts play a central role in cellular processes, notably signal transduction. While micrometer-sized domains are observed with some model membrane mixtures, rafts much smaller than 100 nm-beyond the reach of optical microscopy-are now thought to exist, both in vitro and in vivo. We have used small-angle neutron scattering, a probe free technique, to measure the size of nanoscopic membrane domains in unilamellar vesicles with unprecedented accuracy. These experiments were performed using a four-component model system containing fixed proportions of cholesterol and the saturated phospholipid 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC), mixed with varying amounts of the unsaturated phospholipids 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) and 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC). We find that liquid domain size increases with the extent of acyl chain unsaturation (DOPC:POPC ratio). Furthermore, we find a direct correlation between domain size and the mismatch in bilayer thickness of the coexisting liquid-ordered and liquid-disordered phases, suggesting a dominant role for line tension in controlling domain size. While this result is expected from line tension theories, we provide the first experimental verification in free-floating bilayers. Importantly, we also find that changes in bilayer thickness, which accompany changes in the degree of lipid chain unsaturation, are entirely confined to the disordered phase. Together, these results suggest how the size of functional domains in homeothermic cells may be regulated through changes in lipid composition. C1 [Heberle, Frederick A.; Pan, Jianjun; Standaert, Robert F.; Katsaras, John] Oak Ridge Natl Lab, Biol & Soft Matter Div, Oak Ridge, TN 37831 USA. [Standaert, Robert F.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Drazba, Paul; Katsaras, John] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. [Standaert, Robert F.] Univ Tennessee, Dept Mol Biol & Genet, Knoxville, TN 37996 USA. [Kucerka, Norbert; Katsaras, John] CNR, Canadian Neutron Beam Ctr, Chalk River, ON K0J 1J0, Canada. [Kucerka, Norbert] Comenius Univ, Fac Pharm, Dept Phys Chem Drugs, Bratislava 83232, Slovakia. [Katsaras, John] Oak Ridge Natl Lab, Joint Inst Neutron Sci, Oak Ridge, TN 37831 USA. RP Heberle, FA (reprint author), Oak Ridge Natl Lab, Biol & Soft Matter Div, Oak Ridge, TN 37831 USA. EM heberlefa@ornl.gov; katsarasj@ornl.gov RI Pan, Jianjun/A-4750-2012; Standaert, Robert/D-9467-2013; OI Standaert, Robert/0000-0002-5684-1322; Katsaras, John/0000-0002-8937-4177 FU Laboratory Directed Research and Development Program of Oak Ridge National Laboratory; National Science Foundation [MCB 0842839]; DOE Office of Biological and Environmental Research, for the BioSANS instrument at the ORNL Center for Structural Molecular Biology; Scientific User Facilities Division of the DOE Office of Basic Energy Sciences, for the EQ-SANS instrument at the ORNL Spallation Neutron Source; DOE by UT-Battelle, LLC [DE-AC05-00OR2275]; Cornell University; National Science Foundation FX Support was received from the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory (to J.K. and R.F.S.), managed by UT-Battelle, LLC, for the U.S. Department of Energy (DOE), and from National Science Foundation research award MCB 0842839 (to G.W.F.). This work acknowledges additional support from the DOE Office of Biological and Environmental Research, for the BioSANS instrument at the ORNL Center for Structural Molecular Biology, and from the Scientific User Facilities Division of the DOE Office of Basic Energy Sciences, for the EQ-SANS instrument at the ORNL Spallation Neutron Source. These facilities are managed for DOE by UT-Battelle, LLC under contract no. DE-AC05-00OR2275. A portion of this research was conducted using the resources of the Cornell Center for Advanced Computing, which receives funding from Cornell University, the National Science Foundation, and other leading public agencies, foundations, and corporations. We thank Renee Manning for providing the cover artwork. NR 31 TC 77 Z9 77 U1 8 U2 129 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD MAY 8 PY 2013 VL 135 IS 18 BP 6853 EP 6859 DI 10.1021/ja3113615 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA 143AS UT WOS:000318839300028 PM 23391155 ER PT J AU Wang, HW Wesolowski, DJ Proffen, TE Vlcek, L Wang, W Allard, LF Kolesnikov, AI Feygenson, M Anovitz, LM Paul, RL AF Wang, Hsiu-Wen Wesolowski, David J. Proffen, Thomas E. Vlcek, Lukas Wang, Wei Allard, Lawrence F. Kolesnikov, Alexander I. Feygenson, Mikhail Anovitz, Lawrence M. Paul, Rick L. TI Structure and Stability of SnO2 Nanocrystals and Surface-Bound Water Species SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID DENSITY-FUNCTIONAL THEORY; ORIENTED ATTACHMENT; TIN OXIDE; CRYSTAL-GROWTH; GAS SENSORS; LATTICE EXPANSION; PARTICLE-SIZE; ADSORPTION; PRESSURE; RUTILE AB The structure of SnO2 nanoparticles (avg. 5 nm) with a few layers of water on the surface has been elucidated by atomic pair distribution function (PDF) methods using in situ neutron total scattering data and molecular dynamics (MD) simulations. Analysis of PDF, neutron prompt gamma, and thermogravimetric data, coupled with MD-generated surface D2O/OD configurations demonstrates that the minimum concentration of OD groups required to prevent rapid growth of nanoparticles during thermal dehydration corresponds to similar to 0.7 monolayer coverage. Surface hydration layers not only stabilize the SnO2 nanoparticles but also induce particle-size-dependent structural modifications and are likely to promote interfacial reactions through hydrogen bonds between adjacent particles. Upon heating/dehydration under vacuum above 250 degrees C, nanoparticles start to grow with low activation energies, rapid increase of nanoparticle size, and a reduction in the a lattice dimension. This study underscores the value of neutron diffraction and prompt-gamma analysis, coupled with molecular modeling, in elucidating the influence of surface hydration on the structure and metastable persistence of oxide nanomaterials. C1 [Wang, Hsiu-Wen; Wesolowski, David J.; Vlcek, Lukas; Anovitz, Lawrence M.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Proffen, Thomas E.; Kolesnikov, Alexander I.; Feygenson, Mikhail] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. [Wang, Wei] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Allard, Lawrence F.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Paul, Rick L.] NIST, Div Chem Sci, Mat Measurement Lab, Gaithersburg, MD 20899 USA. RP Wang, HW (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM wangh3@ornl.gov RI Wang, Wei/B-5924-2012; Vlcek, Lukas/N-7090-2013; Feygenson, Mikhail /H-9972-2014; Kolesnikov, Alexander/I-9015-2012; Proffen, Thomas/B-3585-2009; Wang, Hsiu-Wen/H-9493-2016; Anovitz, Lawrence/P-3144-2016 OI Vlcek, Lukas/0000-0003-4782-7702; Feygenson, Mikhail /0000-0002-0316-3265; Kolesnikov, Alexander/0000-0003-1940-4649; Proffen, Thomas/0000-0002-1408-6031; Wang, Hsiu-Wen/0000-0002-2802-4122; Anovitz, Lawrence/0000-0002-2609-8750 FU U.S. Department of Energy (DOE), Office of Basic Energy Sciences (BES), Division of Chemical Sciences, Geosciences and Biosciences; Scientific User Facilitates Division, BES, DOE; DOE, BES [DE-AC02-06CH11357] FX This research is primarily sponsored by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences (BES), Division of Chemical Sciences, Geosciences and Biosciences. The research at ORNL/SNS was supported by the Scientific User Facilitates Division, BES, DOE. The support of the NIST/NCNR, U.S. Department of Commerce in providing the research neutron facility for PGAA is also acknowledged. Use of the Advanced Photon Source (APS) at Argonne National Laboratory (ANL) was supported by the DOE, BES, under contract no. DE-AC02-06CH11357. Technical assistance from Matthew R Suchomel (11-BM beamline scientist at the ANL/APS) is gratefully acknowledged. Certain commercial equipment, instruments, materials and software are identified in this paper to foster understanding. Such identification does not imply recommendation or endorsement by the ORNL, NIST, ANL, or DOE nor does it imply that the materials or equipment identified are necessarily the best available for the purpose. NR 56 TC 17 Z9 17 U1 7 U2 163 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD MAY 8 PY 2013 VL 135 IS 18 BP 6885 EP 6895 DI 10.1021/ja312030e PG 11 WC Chemistry, Multidisciplinary SC Chemistry GA 143AS UT WOS:000318839300031 PM 23607732 ER PT J AU Mulder, DW Ratzloff, MW Shepard, EM Byer, AS Noone, SM Peters, JW Broderick, JB King, PW AF Mulder, David W. Ratzloff, Michael W. Shepard, Eric M. Byer, Amanda S. Noone, Seth M. Peters, John W. Broderick, Joan B. King, Paul W. TI EPR and FTIR Analysis of the Mechanism of H-2 Activation by [FeFe]-Hydrogenase HydA1 from Chlamydomonas reinhardtii SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID ELECTRON-PARAMAGNETIC-RESONANCE; FE-ONLY HYDROGENASE; IRON-SULFUR CLUSTERS; MAGNETIC CIRCULAR-DICHROISM; ACTIVE-SITE; CLOSTRIDIUM-PASTEURIANUM; H-CLUSTER; DESULFOVIBRIO-DESULFURICANS; LIGHT SENSITIVITY; INFRARED-SPECTROSCOPY AB While a general model of H-2 activation has been proposed for [FeFe]-hydrogenases, the structural and biophysical properties of the intermediates of the H-cluster catalytic site have not yet been discretely defined. Electron paramagnetic resonance (EPR) spectroscopy and Fourier transform infrared (FTIR) spectroscopy were used to characterize the H-cluster catalytic site, a [4Fe-4S](H) subcluster linked by a cysteine thiolate to an organometallic diiron subsite with CO, CN, and dithiolate ligands, in [FeFe]-hydrogenase HydA1 from Chlamydomonas reinhardtii (CrHydA1). Oxidized CrHydA1 displayed a rhombic 2.1 EPR signal (g = 2.100, 2.039, 1.997) and an FTIR spectrum previously assigned to the oxidized H-cluster (H-ox). Reduction of the H-ox sample with 100% H-2 or sodium dithionite (NaDT) nearly eliminated the 2.1 signal, which coincided with appearance of a broad 2.3-2.07 signal (g = 2.3-2.07, 1.863) and/or a rhombic 2.08 signal (g = 2.077, 1.935, 1.880). Both signals displayed relaxation properties similar to those of [4Fe-4S] clusters and are consistent with an S = 1/2 H-cluster containing a [4Fe-4S](H)(+) subcluster. These EPR signals were correlated with differences in the CO and CN ligand modes in the FTIR spectra of H-2- and NaDT-reduced samples compared with H-ox. The results indicate that reduction of [4Fe-4S](H) from the 2+ state to the 1+ state occurs during both catalytic H-2 activation and proton reduction and is accompanied by structural rearrangements of the diiron subsite CO/CN ligand field. Changes in the [4Fe-4S](H) oxidation state occur in electron exchange with the diiron subsite during catalysis and mediate electron transfer with either external carriers or accessory FeS clusters. C1 [Mulder, David W.; Ratzloff, Michael W.; Noone, Seth M.; King, Paul W.] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. [Shepard, Eric M.; Byer, Amanda S.; Peters, John W.; Broderick, Joan B.] Montana State Univ, Dept Chem & Biochem, Bozeman, MT 59717 USA. RP King, PW (reprint author), Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. EM paul.king@nrel.gov RI King, Paul/D-9979-2011; OI King, Paul/0000-0001-5039-654X; Broderick, Joan/0000-0001-7057-9124; Peters, John/0000-0001-9117-9568 FU U.S. Department of Energy, Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences; U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy Laboratory; U.S. Department of Energy, Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences [DE-FG02-10ER16194] FX D.W.M., M.W.R, S.M.N., and P.W.K. gratefully acknowledge funding by the U.S. Department of Energy, Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, for the preparation of hydrogenases and FTIR and EPR spectroscopy and support by the U.S. Department of Energy under Contract DE-AC36-08-GO28308 with the National Renewable Energy Laboratory. E.M.S., A.S.B., J.W.P., and J.B.B. gratefully acknowledge funding by the U.S. Department of Energy, Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, through Grant DE-FG02-10ER16194. The authors thank Sandra and Gareth Eaton (University of Denver) for helpful discussions on EPR spectroscopy, Morgan Bye (University of East Anglia) for making available his EPR toolbox software package for data processing, David Bobela and Calvin Curtis (NREL) for technical assistance on the EPR system, and Marko Boehm (NREL) for generously providing TEV protease samples. NR 50 TC 34 Z9 34 U1 4 U2 97 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD MAY 8 PY 2013 VL 135 IS 18 BP 6921 EP 6929 DI 10.1021/ja4000257 PG 9 WC Chemistry, Multidisciplinary SC Chemistry GA 143AS UT WOS:000318839300035 PM 23578101 ER PT J AU Salovich, NW Kim, H Ghosh, AK Giannetta, RW Kwok, W Welp, U Shen, B Zhu, S Wen, HH Tanatar, MA Prozorov, R AF Salovich, N. W. Kim, Hyunsoo Ghosh, Ajay K. Giannetta, R. W. Kwok, W. Welp, U. Shen, B. Zhu, S. Wen, H. -H. Tanatar, M. A. Prozorov, R. TI Effect of heavy-ion irradiation on superconductivity in Ba0.6K0.4Fe2As2 SO PHYSICAL REVIEW B LA English DT Article ID IMPURITIES; DENSITY; STATE; WAVE AB The London penetration depth was measured in optimally doped Ba0.6K0.4Fe2As2 crystals, with and without columnar defects produced by 1.4 GeV Pb-208 irradiation. The low temperature behavior of unirradiated samples was consistent with a fully gapped superconducting state with a minimum energy gap Delta(min)/k(B)T(C) approximate to 1. Similar gap values were observed for irradiation levels corresponding to mean column-column separations of 32 and 22 nm. At very high irradiation levels (column-column separation of 10 nm) a T-2 power law was observed below T-C/3, most likely due to elevated scattering. Neither the location nor the sharpness of the superconducting transition was affected by irradiation. The data provide evidence for an s(+-) pairing state. C1 [Salovich, N. W.; Ghosh, Ajay K.; Giannetta, R. W.] Univ Illinois, Loomis Lab Phys, Urbana, IL 61801 USA. [Kim, Hyunsoo; Tanatar, M. A.; Prozorov, R.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Kim, Hyunsoo; Tanatar, M. A.; Prozorov, R.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Ghosh, Ajay K.] Jadavpur Univ, Dept Phys, Kolkata 700032, India. [Kwok, W.; Welp, U.; Shen, B.; Zhu, S.] Argonne Natl Lab, Argonne, IL 60439 USA. [Wen, H. -H.] Nanjing Univ, Natl Lab Solid State Microstruct, Ctr Superconducting Phys & Mat, Nanjing 210093, Jiangsu, Peoples R China. [Wen, H. -H.] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. RP Giannetta, RW (reprint author), Univ Illinois, Loomis Lab Phys, Urbana, IL 61801 USA. EM russg@illinois.edu FU Center for Emergent Superconductivity, an Energy Frontier Research Center; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC0298CH1088]; US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358]; Indo-US Science and Technology Forum; MOST of China [2011CBA00102, 2012CB821403]; PAPD FX We wish to thank P. Hirschfeld for emphasizing the role of gap anisotropy in reducing TC. We also thank A. Chubukov, H. Kontani, D. V. Efremov, and A. V. Boris for useful discussions. Work at Argonne and UIUC was supported by the Center for Emergent Superconductivity, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-AC0298CH1088. Work at The Ames Laboratory was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Contract No. DE-AC02-07CH11358. A.K.G. was supported in part by the Indo-US Science and Technology Forum. Work in China was supported by the MOST of China (2011CBA00102, 2012CB821403) and PAPD. NR 39 TC 7 Z9 7 U1 2 U2 30 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 8 PY 2013 VL 87 IS 18 AR 180502 DI 10.1103/PhysRevB.87.180502 PG 4 WC Physics, Condensed Matter SC Physics GA 140WL UT WOS:000318687000001 ER PT J AU Xi, XX Park, JH Graf, D Carr, GL Tanner, DB AF Xi, Xiaoxiang Park, J. -H. Graf, D. Carr, G. L. Tanner, D. B. TI Infrared vortex-state electrodynamics in type-II superconducting thin films SO PHYSICAL REVIEW B LA English DT Article ID MICROWAVE SURFACE IMPEDANCE; PARAMAGNETIC IMPURITIES; METALLIC-FILMS; MIXED-STATE; VORTICES; FIELD; CONDUCTIVITY; TEMPERATURE; DEPENDENCE; FREQUENCY AB The vortex-state electrodynamics of s-wave superconductors has been studied by infrared spectroscopy. Far-infrared transmission and reflection spectra of superconducting Nb0.5Ti0.5N and NbN thin films were measured in a magnetic field perpendicular to the film surface, and the optical conductivity was extracted. The data show clear reduction of superconducting signature. We consider the vortex state as a two-component effective medium of normal cores embedded in a BCS superconductor. The spectral features are well explained by the Maxwell Garnett theory. Our analysis supports the presence of magnetic-field-induced pair-breaking effects in the superconducting component outside of the vortex cores. C1 [Xi, Xiaoxiang; Tanner, D. B.] Univ Florida, Dept Phys, Gainesville, FL 32611 USA. [Xi, Xiaoxiang; Carr, G. L.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Park, J. -H.; Graf, D.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. RP Xi, XX (reprint author), Univ Florida, Dept Phys, Gainesville, FL 32611 USA. FU U.S. Department of Energy [DE-FG02-02ER45984, DE-AC02-98CH10886, DE-FG52-10NA29659] FX We are grateful to S. W. Tozer for access to the equipment used in the four-probe resistivity measurements and to G. Nintzel and T. P. Murphy for technical assistance. Work at the University of Florida, Brookhaven National Laboratory, and the National High Magnetic Field Laboratory was supported by the U.S. Department of Energy through DE-FG02-02ER45984, DE-AC02-98CH10886, and DE-FG52-10NA29659. NR 35 TC 5 Z9 5 U1 0 U2 16 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 8 PY 2013 VL 87 IS 18 AR 184503 DI 10.1103/PhysRevB.87.184503 PG 5 WC Physics, Condensed Matter SC Physics GA 140WL UT WOS:000318687000004 ER PT J AU Bzdak, A Skokov, V AF Bzdak, Adam Skokov, Vladimir TI Anisotropy of Photon Production: Initial Eccentricity or Magnetic Field SO PHYSICAL REVIEW LETTERS LA English DT Article ID HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; LEPTONS; PSIONS; EVENT AB Recent measurements of the azimuthal anisotropy of direct photons in heavy-ion collisions at the energies of Relativistic Heavy Ion Collider show that it is of the same order as the hadronic one. This finding appears to contradict the expected dominance of photon production from a quark-gluon plasma at an early stage of a heavy-ion collision. A possible explanation of the strong azimuthal anisotropy of the photons, given recently, is based on the presence of a large magnetic field in the early phase of a collision. In this Letter, we propose a method to experimentally measure the degree to which a magnetic field in heavy-ion collisions is responsible for the observed anisotropy of photon production. The experimental test proposed in this Letter may potentially change our understanding of the nonequilibrium stage and possible thermalization in heavy-ion collisions. C1 [Bzdak, Adam] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Skokov, Vladimir] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Bzdak, A (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. EM ABzdak@bnl.gov; VSkokov@bnl.gov OI Skokov, Vladimir/0000-0001-7619-1796 FU U.S. Department of Energy [DE-AC02-98CH10886]; Polish Ministry of Science and Higher Education [N202 125437] FX We thank G. Basar, D. Kharzeev, and L. McLerran for discussions. We are grateful to A. Woodhead for the careful reading of the manuscript. The authors were supported by Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. A. B. also acknowledges the Grant No. N202 125437 of the Polish Ministry of Science and Higher Education (2009-2012). NR 25 TC 24 Z9 24 U1 1 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 8 PY 2013 VL 110 IS 19 AR 192301 DI 10.1103/PhysRevLett.110.192301 PG 4 WC Physics, Multidisciplinary SC Physics GA 140XQ UT WOS:000318690200002 PM 23705700 ER PT J AU Chtchelkatchev, NM Glatz, A Beloborodov, IS AF Chtchelkatchev, N. M. Glatz, A. Beloborodov, I. S. TI Interplay of charge and heat transport in a nano-junction in the out-of-equilibrium cotunneling regime SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Article ID POINTS AB We study the charge transport and heat transfer through a nano-junction composed of a small metallic grain weakly coupled to two metallic leads. We focus on the cotunneling regime out-of-equilibrium, where the bias voltage and the temperature gradient between the leads strongly drive electron and phonon degrees of freedom in the grain, which in turn have a strong feedback on the transport through the grain. We derive and solve the heat balance equation for electron and phonon degrees of freedom in the grain and self-consistently find the current-voltage characteristics. We demonstrate that the transport in the nano-junction is very sensitive to the spectrum of the bosonic modes in the grain. C1 [Chtchelkatchev, N. M.] Russian Acad Sci, Inst High Pressure Phys, Troitsk 142190, Russia. [Chtchelkatchev, N. M.] Moscow Inst Phys & Technol, Dept Theoret Phys, Dolgoprudnyi 141700, Russia. [Chtchelkatchev, N. M.] Russian Acad Sci, LD Landau Theoret Phys Inst, Chernogolovka 142432, Moscow Region, Russia. [Glatz, A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Glatz, A.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Beloborodov, I. S.] Calif State Univ Northridge, Dept Phys & Astron, Northridge, CA 91330 USA. RP Chtchelkatchev, NM (reprint author), Russian Acad Sci, Inst High Pressure Phys, Troitsk 142190, Russia. RI Chtchelkatchev, Nikolay/L-1273-2013 OI Chtchelkatchev, Nikolay/0000-0002-7242-1483 FU US Department of Energy Office of Science [DE-AC02-06CH11357]; NSF [DMR 1158666] FX AG was supported by the US Department of Energy Office of Science under the Contract No. DE-AC02-06CH11357. IB was supported by NSF Grant DMR 1158666. NR 21 TC 4 Z9 4 U1 1 U2 12 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-8984 J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD MAY 8 PY 2013 VL 25 IS 18 AR 185301 DI 10.1088/0953-8984/25/18/185301 PG 10 WC Physics, Condensed Matter SC Physics GA 130KE UT WOS:000317913100013 PM 23571317 ER PT J AU Sheng, YW Durazo, A Schumacher, M Gralla, EB Cascio, D Cabelli, DE Valentine, JS AF Sheng, Yuewei Durazo, Armando Schumacher, Mikhail Gralla, Edith Butler Cascio, Duilio Cabelli, Diane E. Valentine, Joan Selverstone TI Tetramerization Reinforces the Dimer Interface of MnSOD SO PLOS ONE LA English DT Article ID MANGANESE SUPEROXIDE-DISMUTASE; ESCHERICHIA-COLI; SACCHAROMYCES-CEREVISIAE; MALATE-DEHYDROGENASE; CRYSTAL-STRUCTURES; CANDIDA-ALBICANS; PROTEIN; STABILITY; YEAST; CRYSTALLIZATION AB Two yeast manganese superoxide dismutases (MnSOD), one from Saccharomyces cerevisiae mitochondria (ScMnSOD) and the other from Candida albicans cytosol (CaMnSODc), have most biochemical and biophysical properties in common, yet ScMnSOD is a tetramer and CaMnSODc is a dimer or "loose tetramer'' in solution. Although CaMnSODc was found to crystallize as a tetramer, there is no indication from the solution properties that the functionality of CaMnSODc in vivo depends upon the formation of the tetrameric structure. To elucidate further the functional significance of MnSOD quaternary structure, wild-type and mutant forms of ScMnSOD (K182R, A183P mutant) and CaMnSODc (K184R, L185P mutant) with the substitutions at dimer interfaces were analyzed with respect to their oligomeric states and resistance to pH, heat, and denaturant. Dimeric CaMnSODc was found to be significantly more subject to thermal or denaturant-induced unfolding than tetrameric ScMnSOD. The residue substitutions at dimer interfaces caused dimeric CaMnSODc but not tetrameric ScMnSOD to dissociate into monomers. We conclude that the tetrameric assembly strongly reinforces the dimer interface, which is critical for MnSOD activity. C1 [Sheng, Yuewei; Durazo, Armando; Schumacher, Mikhail; Gralla, Edith Butler; Valentine, Joan Selverstone] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90024 USA. [Cascio, Duilio] Univ Calif Los Angeles, Dept Energy, Inst Genom & Prote, Los Angeles, CA USA. [Durazo, Armando] Univ Arizona, Dept Chem & Environm Engn, Tucson, AZ USA. [Cabelli, Diane E.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Valentine, Joan Selverstone] Ewha Womans Univ, Dept Bioinspired Sci, Seoul, South Korea. RP Cabelli, DE (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM cabelli@bnl.gov; jsv@chem.ucla.edu FU United States Department of Energy; Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences; [DK46828]; [DE-AC02-98CH10886] FX This work was supported by grant DK46828 to J.S.V. Radiolysis studies were carried out at Center for Radiation Chemistry Research at BNL, which is funded under contract DE-AC02-98CH10886 with the United States Department of Energy and supported by its Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 45 TC 3 Z9 3 U1 1 U2 13 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD MAY 7 PY 2013 VL 8 IS 5 AR e62446 DI 10.1371/journal.pone.0062446 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 154EP UT WOS:000319654700037 PM 23667478 ER PT J AU Nixon, KL Murray, AJ Chaluvadi, H Ning, CG Colgan, J Madison, DH AF Nixon, Kate L. Murray, Andrew James Chaluvadi, Hari Ning, Chuangang Colgan, James Madison, Don H. TI Low energy (e,2e) coincidence studies of NH3: Results from experiment and theory SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID ELECTRON MOMENTUM SPECTROSCOPY; CLOSE-COUPLING METHOD; CROSS-SECTIONS; VALENCE ORBITALS; IONIZATION; MOLECULES; COPLANAR AB Experimental and theoretical triple differential cross sections (TDCS) from ammonia are presented in the low energy regime with outgoing electron energies from 20 eV down to 1.5 eV. Ionization measurements from the 3a(1), 1e(1), and 2a(1) molecular orbitals were taken in a coplanar geometry. Data from the 3a(1) and 1e(1) orbitals were also obtained in a perpendicular plane geometry. The data are compared to predictions from the distorted wave Born approximation and molecular-three-body distorted wave models. The cross sections for the 3a(1) and 1e(1) orbitals that have p-like character were found to be similar, and were different to that of the 2a(1) orbital which has s-like character. These observations are not reproduced by theory, which predicts the structure of the TDCS for all orbitals should be similar. Comparisons are also made to results from experiment and theory for the iso-electronic targets neon and methane. (C) 2013 AIP Publishing LLC. C1 [Nixon, Kate L.; Murray, Andrew James] Univ Manchester, Photon Sci Inst, Sch Phys & Astron, Manchester M13 9PL, Lancs, England. [Chaluvadi, Hari; Madison, Don H.] Missouri Univ Sci & Technol, Dept Phys, Rolla, MO 65409 USA. [Ning, Chuangang] Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China. [Colgan, James] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Nixon, KL (reprint author), Univ Manchester, Photon Sci Inst, Sch Phys & Astron, Manchester M13 9PL, Lancs, England. RI Nixon, Kate/I-4968-2014; Ning, chuangang/C-3506-2012; OI Nixon, Kate/0000-0002-1226-1879; Ning, chuangang/0000-0002-3158-1253; Colgan, James/0000-0003-1045-3858 FU Royal Society at the University of Manchester; US National Science Foundation [PHY-1068237]; National Natural Science Foundation of China [11174175] FX K.L.N. would like to thank the Royal Society for a Newton International Fellowship at the University of Manchester. We would like to thank the technicians in the Schuster laboratory for providing excellent support for the experimental apparatus. This work was partly supported by the US National Science Foundation under Grant No. PHY-1068237 and by the National Natural Science Foundation of China under Grant No. 11174175. Computational work was performed with Institutional Computing resources made available through Los Alamos National Laboratory. NR 33 TC 14 Z9 14 U1 2 U2 15 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD MAY 7 PY 2013 VL 138 IS 17 AR 174304 DI 10.1063/1.4802960 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 149AE UT WOS:000319289600026 PM 23656131 ER PT J AU Hettich, RL Pan, CL Chourey, K Giannone, RJ AF Hettich, Robert L. Pan, Chongle Chourey, Karuna Giannone, Richard J. TI Metaproteomics: Harnessing the Power of High Performance Mass Spectrometry to Identify the Suite of Proteins That Control Metabolic Activities in Microbial Communities SO ANALYTICAL CHEMISTRY LA English DT Article ID SHEWANELLA-ONEIDENSIS MR-1; TOP-DOWN; GEL-ELECTROPHORESIS; SHOTGUN PROTEOMICS; IDENTIFICATION TECHNOLOGY; ENVIRONMENTAL PROTEOMICS; PEPTIDE-IDENTIFICATION; SOIL METAPROTEOMICS; BACTERIAL PHYLA; INTACT PROTEINS AB The availability of extensive genome information for many different microbes, including unculturable species in mixed communities from environmental samples, has enabled systems-biology interrogation by providing a means to access genomic, transcriptomic, and proteomic information. To this end, metaproteomics exploits the power of high-performance mass spectrometry for extensive characterization of the complete suite of proteins expressed by a microbial community in an environmental sample. C1 [Hettich, Robert L.; Pan, Chongle; Chourey, Karuna; Giannone, Richard J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Hettich, RL (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM hettichrl@ornl.gov RI Hettich, Robert/N-1458-2016; OI Hettich, Robert/0000-0001-7708-786X; , /0000-0002-9216-3813 FU U.S. Department of Energy, Office of Biological and Environmental Research, Genome Sciences Program; National Institutes of Health, Human Microbiome Project [UH2DK83991] FX Financial support was provided by the U.S. Department of Energy, Office of Biological and Environmental Research, Genome Sciences Program (for content related to the environmental metaproteomics) and by the National Institutes of Health, Human Microbiome Project, grant UH2DK83991 (for content related to the human microbiome metaproteomics). Oak Ridge National Laboratory is managed by University of Tennessee-Battelle LLC for the Department of Energy. NR 103 TC 46 Z9 47 U1 4 U2 59 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 EI 1520-6882 J9 ANAL CHEM JI Anal. Chem. PD MAY 7 PY 2013 VL 85 IS 9 BP 4203 EP 4214 DI 10.1021/ac303053e PG 12 WC Chemistry, Analytical SC Chemistry GA 141WB UT WOS:000318756100002 PM 23469896 ER PT J AU Korman, TP Sahachartsiri, B Charbonneau, DM Huang, GL Beauregard, M Bowie, JU AF Korman, Tyler P. Sahachartsiri, Bobby Charbonneau, David M. Huang, Grace L. Beauregard, Marc Bowie, James U. TI Dieselzymes: development of a stable and methanol tolerant lipase for biodiesel production by directed evolution SO BIOTECHNOLOGY FOR BIOFUELS LA English DT Article DE Lipase; Biodiesel; Proteus mirabilis; Proteus sp K107; Directed evolution; Alcohol tolerance ID ORGANIC-SOLVENTS; BACTERIAL LIPASES; CRYSTAL-STRUCTURE; OPEN CONFORMATION; STABILITY; ENZYMES; FUEL; TRANSESTERIFICATION; CLASSIFICATION; BIOTECHNOLOGY AB Background: Biodiesels are methyl esters of fatty acids that are usually produced by base catalyzed transesterification of triacylglyerol with methanol. Some lipase enzymes are effective catalysts for biodiesel synthesis and have many potential advantages over traditional base or acid catalyzed transesterification. Natural lipases are often rapidly inactivated by the high methanol concentrations used for biodiesel synthesis, however, limiting their practical use. The lipase from Proteus mirabilis is a particularly promising catalyst for biodiesel synthesis as it produces high yields of methyl esters even in the presence of large amounts of water and expresses very well in Escherichia coli. However, since the Proteus mirabilis lipase is only moderately stable and methanol tolerant, these properties need to be improved before the enzyme can be used industrially. Results: We employed directed evolution, resulting in a Proteus mirabilis lipase variant with 13 mutations, which we call Dieselzyme 4. Dieselzyme 4 has greatly improved thermal stability, with a 30-fold increase in the half-inactivation time at 50 degrees C relative to the wild-type enzyme. The evolved enzyme also has dramatically increased methanol tolerance, showing a 50-fold longer half-inactivation time in 50% aqueous methanol. The immobilized Dieselzyme 4 enzyme retains the ability to synthesize biodiesel and has improved longevity over wild-type or the industrially used Brukholderia cepacia lipase during many cycles of biodiesel synthesis. A crystal structure of Dieselzyme 4 reveals additional hydrogen bonds and salt bridges in Dieselzyme 4 compared to the wild-type enzyme, suggesting that polar interactions may become particularly stabilizing in the reduced dielectric environment of the oil and methanol mixture used for biodiesel synthesis. Conclusions: Directed evolution was used to produce a stable lipase, Dieselzyme 4, which could be immobilized and re-used for biodiesel synthesis. Dieselzyme 4 outperforms the industrially used lipase from Burkholderia cepacia and provides a platform for still further evolution of desirable biodiesel production properties. C1 [Korman, Tyler P.; Sahachartsiri, Bobby; Huang, Grace L.; Bowie, James U.] Univ Calif Los Angeles, Inst Mol Biol, Dept Chem & Biochem, UCLA DOE Inst Genom & Prote, Los Angeles, CA 90024 USA. [Charbonneau, David M.; Beauregard, Marc] Univ Quebec Trois Rivieres, Dept Chim Biol, Trois Rivieres, PQ GA9 5H7, Canada. RP Bowie, JU (reprint author), Univ Calif Los Angeles, Inst Mol Biol, Dept Chem & Biochem, UCLA DOE Inst Genom & Prote, Los Angeles, CA 90024 USA. EM bowie@mbi.ucla.edu FU US Department of Energy; Camile and Henry Dreyfus Foundation; PROTEO scholarship; NSERC grant [138654] FX This work was supported by grants from the US Department of Energy and from the Camile and Henry Dreyfus Foundation. D. M. C. and M. B. acknowledge the support of a PROTEO scholarship and NSERC grant (Discovery 138654). NR 40 TC 26 Z9 26 U1 5 U2 63 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1754-6834 J9 BIOTECHNOL BIOFUELS JI Biotechnol. Biofuels PD MAY 7 PY 2013 VL 6 AR 70 DI 10.1186/1754-6834-6-70 PG 13 WC Biotechnology & Applied Microbiology; Energy & Fuels SC Biotechnology & Applied Microbiology; Energy & Fuels GA 149YN UT WOS:000319357400001 PM 23648063 ER PT J AU Shen, H Poovaiah, CR Ziebell, A Tschaplinski, TJ Pattathil, S Gjersing, E Engle, NL Katahira, R Pu, YQ Sykes, R Chen, F Ragauskas, AJ Mielenz, JR Hahn, MG Davis, M Stewart, CN Dixon, RA AF Shen, Hui Poovaiah, Charleson R. Ziebell, Angela Tschaplinski, Timothy J. Pattathil, Sivakumar Gjersing, Erica Engle, Nancy L. Katahira, Rui Pu, Yunqiao Sykes, Robert Chen, Fang Ragauskas, Arthur J. Mielenz, Jonathan R. Hahn, Michael G. Davis, Mark Stewart, C. Neal, Jr. Dixon, Richard A. TI Enhanced characteristics of genetically modified switchgrass (Panicum virgatum L.) for high biofuel production SO BIOTECHNOLOGY FOR BIOFUELS LA English DT Article DE Switchgrass; Bioenergy; Biofuel; Feedstock; Cellulosic ethanol; PvMYB4; Transcription factor; Cell wall; Recalcitrance; Lignin; Hemicellulose; Pectin ID PLANT-CELL-WALL; ALFALFA MEDICAGO-SATIVA; MONOCLONAL-ANTIBODIES; DOWN-REGULATION; LIGNIN; XYLOGLUCAN; LIGNIFICATION; PRETREATMENT; ETHANOL; BIOMASS AB Background: Lignocellulosic biomass is one of the most promising renewable and clean energy resources to reduce greenhouse gas emissions and dependence on fossil fuels. However, the resistance to accessibility of sugars embedded in plant cell walls (so-called recalcitrance) is a major barrier to economically viable cellulosic ethanol production. A recent report from the US National Academy of Sciences indicated that, "absent technological breakthroughs", it was unlikely that the US would meet the congressionally mandated renewable fuel standard of 35 billion gallons of ethanol-equivalent biofuels plus 1 billion gallons of biodiesel by 2022. We here describe the properties of switchgrass (Panicum virgatum) biomass that has been genetically engineered to increase the cellulosic ethanol yield by more than 2-fold. Results: We have increased the cellulosic ethanol yield from switchgrass by 2.6-fold through overexpression of the transcription factor PvMYB4. This strategy reduces carbon deposition into lignin and phenolic fermentation inhibitors while maintaining the availability of potentially fermentable soluble sugars and pectic polysaccharides. Detailed biomass characterization analyses revealed that the levels and nature of phenolic acids embedded in the cell-wall, the lignin content and polymer size, lignin internal linkage levels, linkages between lignin and xylans/pectins, and levels of wall-bound fucose are all altered in PvMYB4-OX lines. Genetically engineered PvMYB4-OX switchgrass therefore provides a novel system for further understanding cell wall recalcitrance. Conclusions: Our results have demonstrated that overexpression of PvMYB4, a general transcriptional repressor of the phenylpropanoid/lignin biosynthesis pathway, can lead to very high yield ethanol production through dramatic reduction of recalcitrance. MYB4-OX switchgrass is an excellent model system for understanding recalcitrance, and provides new germplasm for developing switchgrass cultivars as biomass feedstocks for biofuel production. C1 [Shen, Hui; Chen, Fang; Dixon, Richard A.] Samuel Roberts Noble Fdn Inc, Div Plant Biol, Ardmore, OK 73401 USA. [Poovaiah, Charleson R.; Stewart, C. Neal, Jr.] Univ Tennessee, Dept Plant Sci, Knoxville, TN 37996 USA. [Ziebell, Angela; Gjersing, Erica; Katahira, Rui; Pu, Yunqiao; Sykes, Robert; Davis, Mark] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Pattathil, Sivakumar; Hahn, Michael G.] Univ Georgia, Complex Carbohydrate Res Ctr, Athens, GA 30602 USA. [Ragauskas, Arthur J.] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA. [Shen, Hui; Poovaiah, Charleson R.; Ziebell, Angela; Tschaplinski, Timothy J.; Pattathil, Sivakumar; Gjersing, Erica; Engle, Nancy L.; Pu, Yunqiao; Sykes, Robert; Chen, Fang; Ragauskas, Arthur J.; Mielenz, Jonathan R.; Hahn, Michael G.; Davis, Mark; Stewart, C. Neal, Jr.; Dixon, Richard A.] Oak Ridge Natl Lab, BioEnergy Sci Ctr BESC, Oak Ridge, TN 37831 USA. RP Dixon, RA (reprint author), Univ N Texas, Dept Biol Sci, 1155 Union Circle, Denton, TX 76203 USA. EM Richard.Dixon@unt.edu RI Poovaiah, Charleson/C-6777-2012; OI Pu, Yunqiao/0000-0003-2554-1447; Hahn, Michael/0000-0003-2136-5191; , Sivakumar Pattathil/0000-0003-3870-4137; Tschaplinski, Timothy/0000-0002-9540-6622; davis, mark/0000-0003-4541-9852; Poovaiah, Charleson/0000-0001-7157-5176; Engle, Nancy/0000-0003-0290-7987 FU BioEnergy Science Center, a US Department of Energy Bioenergy Research Center, through the Office of Biological and Environmental Research in the DOE Office of Science; U.S. Government [DE-AC05-00OR22725]; NSF Plant Genome Program [DCB-041683, IOS-0923992] FX We thank Lisa Jackson and David Huhman for GC-MS analysis of lignin monomers, Tui Ray for assistance with qRT-PCR analysis, Choo Hamilton and Miguel Rodriguez for assistance with ethanol fermentations and HPLC, Jeffrey Miller for assistance with glycome profiling, Dr. Stephen Webb for assistance with statistical analysis, and Professor Rick Nelson and Dr. Yuhong Tang for critical reading of the manuscript. This work was supported by the BioEnergy Science Center, a US Department of Energy Bioenergy Research Center, through the Office of Biological and Environmental Research in the DOE Office of Science. This manuscript has been co-authored by a contractor of the U.S. Government under contract DE-AC05-00OR22725. The CCRC series of plant glycan-directed monoclonal antibodies used in this project were generated with the support of the NSF Plant Genome Program (DCB-041683 and IOS-0923992). NR 46 TC 49 Z9 49 U1 3 U2 91 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1754-6834 J9 BIOTECHNOL BIOFUELS JI Biotechnol. Biofuels PD MAY 7 PY 2013 VL 6 AR 71 DI 10.1186/1754-6834-6-71 PG 15 WC Biotechnology & Applied Microbiology; Energy & Fuels SC Biotechnology & Applied Microbiology; Energy & Fuels GA 144HU UT WOS:000318931100001 PM 23651942 ER PT J AU Latta, DE Pearce, CI Rosso, KM Kemner, KM Boyanov, MI AF Latta, Drew E. Pearce, Carolyn I. Rosso, Kevin M. Kemner, Kenneth M. Boyanov, Maxim I. TI Reaction of U-VI with Titanium-Substituted Magnetite: Influence of Ti on U-IV Speciation SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID TITANOMAGNETITE FE3-XTIXO4 NANOPARTICLES; SECONDARY MINERALIZATION PRODUCTS; ADVANCED PHOTON SOURCE; REDUCTIVE IMMOBILIZATION; URANIUM(VI) REDUCTION; CONTAMINATED AQUIFER; SYNTHETIC BRANNERITE; DISSOLUTION KINETICS; ELECTRON-TRANSFER; U(VI) REDUCTION AB Reduction of hexavalent uranium (U-VI) to less soluble; tetravalent uranium,(U-IV) through enzymatic. or abiotic redox reactions has the potential to alter U mobility in subsurface environments. As ubiquitous natural mineral, magnetite (Fe3O4) is of interest because of its ability to act as a rechargeable reductant for U-VI. Natural magnetites are often impure with titanium, and structural Fe3+ replacement by Ti-IV yields a proportional increase in the relative Fe2+ content in the metal sublattice to maintain bulk charge neutrality. In the absence of oxidation, the Ti content sets the initial bulk Fe2+/Fe3+ ratio (R). Here, we demonstrate that Ti-doped magnetites (Fe3-xTixO4) reduce U-VI to U-IV. The U-VI-Fe2+ redox reactivity was found to be controlled directly by R but was otherwise independent of Ti content (x(Ti)). However, in contrast to previous studies with pure magnetite where U-VI was reduced to nanocrystalline uraninite (UO2), the presence of structural Ti (x(Ti) = 0.25-0.53) results in the formation of U-IV species that lack the bidentate U-O-2-U bridges of uraninite. Extended X-ray absorption fine structure spectroscopic analysis indicated that the titanomagnetite-bound U-IV phase has a novel U-IV-Ti binding geometry different from the coordination of U-IV in the mineral brannerite ((UTi2O6)-Ti-IV). The observed U-IV-Ti coordination at a distance of 3.43 A suggests a binuclear corner sharing adsorption/incorporation U-IV complex with the solid phase. Furthermore, we explored the effect of oxidation (decreasing R) and solids-to-solution ratio on the reduced U-IV phase. The formation of the non-uraninite U-IV-Ti phase appears to be controlled by availability of surface Ti sites rather than R. Our work highlights a previously unrecognized role of Ti in the environmental chemistry of U-IV and suggests that further work to characterize the long-term stability of U-IV phases formed in the presence of Ti is warranted. C1 [Latta, Drew E.; Kemner, Kenneth M.; Boyanov, Maxim I.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Pearce, Carolyn I.; Rosso, Kevin M.] Pacific NW Natl Lab, Div Phys Sci, Richland, WA 99352 USA. RP Latta, DE (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM dlatta@anl.gov RI BM, MRCAT/G-7576-2011; ID, MRCAT/G-7586-2011; Latta, Drew/A-3030-2014 FU DOE Subsurface Biogeochemical Research Program, Office of Biological and Environmental Research, Office of Science; DOE and member institutions; DOE; UChicago Argonne, LLC operated [DE-AC02-06CH11357] FX We thank B. Mishra and MRCAT/EnviroCAT beamline staff members T. Shibata, E. Lang, J. Katsoudas, and S. Chattopadhyay for help during EXAFS data collection. We also thank K. I. Libya, T. Y. Shvareva, and A. Navrotsky in the Peter A. Rock Thermochemistry Laboratory at the University of California at Davis for the synthesis of brannerite. Research under the Subsurface Scientific Focus Area (SFA) program at Argonne National Laboratory and under the Pacific Northwest National Laboratory SFA was supported by the DOE Subsurface Biogeochemical Research Program, Office of Biological and Environmental Research, Office of Science. MRCAT/EnviroCAT operations are supported by DOE and member institutions. Use of the APS, an Office of Science User Facility operated by Argonne for the DOE Office of Science, was supported by DOE. Use of the Electron Microscopy Center at Argonne was supported by UChicago Argonne, LLC operated under Contract DE-AC02-06CH11357. NR 68 TC 10 Z9 10 U1 5 U2 77 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X EI 1520-5851 J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD MAY 7 PY 2013 VL 47 IS 9 BP 4121 EP 4130 DI 10.1021/es303383n PG 10 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 141WA UT WOS:000318756000023 PM 23597442 ER PT J AU Zhang, CY Liu, CX Shi, Z AF Zhang, Changyong Liu, Chongxuan Shi, Zhi TI Micromodel Investigation of Transport Effect on the Kinetics of Reductive Dissolution of Hematite SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID REACTIVE TRANSPORT; FE(III) OXIDE; MINERALIZATION PATHWAYS; SCALE HETEROGENEITY; MICROBIAL REDUCTION; IRON(III) REDUCTION; BACTERIAL REDUCTION; ELECTRON-ACCEPTORS; HUMIC SUBSTANCES; POROUS-MEDIA AB Reductive dissolution of hematite in porous media was investigated using a micromodel (8.1 x 4.5 x 0.028 mm) with realistic pore network structures that include distinctive advection domain, macropores and micropores created in silicon substrate. The micromodel pore surface was sputter deposited with a thin layer (230 nm) of hematite. The hematite in the micromodel was reduced by injecting pH-varying solutions (pH 5.0, 6.0, 7.0) containing a reduced form of flavin mononucleotide (FMNH2, 100 mu M), a biogenic soluble electron transfer mediator produced by Shewanella species. The reduction kinetics was determined by measuring effluent Fe(II) (aq) concentration and by spectroscopically monitoring the hematite dissolution front in the micromodel. Batch experiment was also performed to estimate the hematite reduction rate under the well mixed condition. Results showed significant spatial variation in local redox reaction rate that was controlled by the coupled transport and reaction. The overall rate of the redox reaction in the micromodel required a three-domain numerical model to effectively describe reaction kinetics either with distinctive apparent rate parameters or mass transfer coefficients in different pore domains. Results from this study demonstrated the feasibility of a domain-based modeling approach for scaling reaction rates from batch to porous media systems where reactions may be significantly limited by transport. C1 [Zhang, Changyong; Liu, Chongxuan; Shi, Zhi] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Zhang, CY (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. EM czhang98@gmail.com; chongxuan.liu@pnnl.gov RI Liu, Chongxuan/C-5580-2009; Zhang, Changyong/A-8012-2013 FU PNNL Science Focus Area (SFA); Subsurface Biogeochemical Research (SBR); U.S. Department of Energy (DOE); DOE Office of Biological and Environmental Research and located at the PNNL FX This research was supported by the PNNL Science Focus Area (SFA), Subsurface Biogeochemical Research (SBR), and the U.S. Department of Energy (DOE). The research was performed using the Environmental Molecular Science Laboratory (EMSL), a national user facility sponsored by the DOE Office of Biological and Environmental Research and located at the PNNL. We thank Tamas Varga for help with GIXRD and XRR We thank four anonymous reviewers for insightful comments. NR 49 TC 6 Z9 6 U1 4 U2 69 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD MAY 7 PY 2013 VL 47 IS 9 BP 4131 EP 4139 DI 10.1021/es304006w PG 9 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 141WA UT WOS:000318756000024 PM 23484541 ER PT J AU Li, W Wang, YJ Zhu, MQ Fan, TT Zhou, DM Phillips, BL Sparks, DL AF Li, Wei Wang, Yu-Jun Zhu, Mengqiang Fan, Ting-Ting Zhou, Dong-Mei Phillips, Brian L. Sparks, Donald L. TI Inhibition Mechanisms of Zn Precipitation on Aluminum Oxide by Glyphosate: A P-31 NMR and Zn EXAFS Study SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID MICROCRYSTALLINE GIBBSITE; N-PHOSPHONOMETHYLGLYCINE; POLLUTED SOILS; GAMMA-ALUMINA; ZINC; COMPLEXES; ADSORPTION; GOETHITE; SORPTION; COPPER AB In this research, the effects of glyphosate (GPS) on Zn sorption/precipitation on gamma-alumina were investigated using a batch technique, Zn K-edge EXAFS, and P-31 NMR spectroscopy. The EXAFS analysis revealed that, in the absence of glyphosate, Zn adsorbed on the aluminum oxide surface mainly as bidentate mononuclear surface complexes at pH 5.5, whereas Zn-Al layered double hydroxide (LDH) precipitates formed at pH 8.0. In the presence of glyphosate, the EXAFS spectra of Zn sorption samples at pH 5.5 and 8.0 were very similar, both of which demonstrated that Zn did not directly bind to the mineral surface but bonded with the carboxyl group of glyphosate. Formation of gamma-alumina-GPS-Zn ternary surface complexes was further suggested by P-31 solid state NMR data which indicated the glyphosate binds to gamma-alumina via a phosphonate group, bridging the mineral surface and Zn. Additionally, we showed the sequence of additional glyphosate and Zn can influence the sorption mechanism. At pH 8, Zn-Al LDH precipitates formed if Zn was added first, and no precipitates formed if glyphosate was added first or simultaneously with Zn. In contrast, at pH SS, only gamma-alumina-GPS-Zn ternary surface complexes formed regardless of whether glyphosate or Zn was added first or both were added simultaneously. C1 [Li, Wei; Wang, Yu-Jun; Sparks, Donald L.] Univ Delaware, Delaware Environm Inst, Environm Soil Chem Grp, Newark, DE 19717 USA. [Li, Wei; Wang, Yu-Jun; Sparks, Donald L.] Univ Delaware, Dept Plant & Soil Sci, Newark, DE 19717 USA. [Wang, Yu-Jun; Fan, Ting-Ting; Zhou, Dong-Mei] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China. [Zhu, Mengqiang] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Phillips, Brian L.] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA. [Phillips, Brian L.] SUNY Stony Brook, Ctr Environm Mol Sci, Stony Brook, NY 11794 USA. RP Li, W (reprint author), Univ Delaware, Delaware Environm Inst, Environm Soil Chem Grp, Newark, DE 19717 USA. EM weili@udel.edu; yjwang@issas.ac.cn RI Wang, Yujun/C-6962-2013; Li, Wei/D-6289-2011 OI Wang, Yujun/0000-0002-0921-0122; Li, Wei/0000-0002-0789-0320 FU National Science Foundation (NSF) through the Delaware EPSCoR program [EPS0814251]; National Natural Science Foundation of China (NSFC) [41171189, 40930739]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX This research was partially funded by the National Science Foundation (NSF) through the Delaware EPSCoR program (grant no. EPS0814251). Drs. Yu-Jun Wang and Dong-Mei Zhou are grateful to the financial support from the National Natural Science Foundation of China (NSFC) (grants no. 41171189 and 40930739). Prof. Ulf Skyllberg (Swedish University of Agricultural Sciences) is acknowledged for offering the EXAFS data for the Zn-Carboxylate standard model compound. We thank Cathy Olsen at the University of Delaware for assistance with the ICP-AES analyses and Dr. Kaumudi Pandya for help with XAS data collection at beamline XIIA at the NSLS. Use of the National Synchrotron Light Source, Brookhaven National Laboratory, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. We are also grateful to the Shanghai Synchrotron Radiation Facility (SSRF) for use of the synchrotron radiation facilities at beamline 14W and 15U. NR 35 TC 5 Z9 5 U1 6 U2 100 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD MAY 7 PY 2013 VL 47 IS 9 BP 4211 EP 4219 DI 10.1021/es305120x PG 9 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 141WA UT WOS:000318756000034 PM 23550510 ER PT J AU Robidart, J Callister, SJ Song, PF Nicora, CD Wheat, CG Girguis, PR AF Robidart, Julie Callister, Stephen J. Song, Pengfei Nicora, Carrie D. Wheat, Charles G. Girguis, Peter R. TI Characterizing Microbial Community and Geochemical Dynamics at Hydrothermal Vents Using Osmotically Driven Continuous Fluid Samplers SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID MID-ATLANTIC RIDGE; POPULATION-DYNAMICS; HIGH-RESOLUTION; BACTERIAL; QUANTIFICATION; DIVERSITY; DOMINANCE; GROWTH; FIELD AB Microbes play a key role in mediating aquatic biogeochemical cycles. However, our understanding of the relationships between microbial phylogenetic/physiological diversity and habitat physicochemical characteristics is restrained by our limited capacity to concurrently collect microbial and geochemical samples at appropriate spatial and temporal scales. Accordingly, we have developed a low-cost, continuous fluid sampling system (the Biological OsmoSampling System, or BOSS) to address this limitation. The BOSS does not use electricity, can be deployed in harsh/remote environments, and collects/preserves samples with daily resolution for >1 year. Here, we present data on the efficacy of DNA and protein preservation during a 1.5 year laboratory study as well as the results of two field deployments at deep-sea hydrothermal vents, wherein we examined changes in microbial diversity, protein expression, and geochemistry over time. Our data reveal marked changes in microbial composition co-occurring with changes in hydrothermal fluid composition as well as the temporal dynamics of an enigmatic sulfide-oxidizing symbiont in its free-living state. We also present the first data on in situ protein preservation and expression dynamics highlighting the BOSS's potential utility in meta-proteomic studies. These data illustrate the value of using BOSS to study relationships among microbial and geochemical phenomena and environmental conditions. C1 [Robidart, Julie; Song, Pengfei; Girguis, Peter R.] Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA. [Callister, Stephen J.; Nicora, Carrie D.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Wheat, Charles G.] Univ Alaska Fairbanks, Moss Landing, CA 95039 USA. RP Girguis, PR (reprint author), Harvard Univ, Dept Organism & Evolutionary Biol, 16 Divin Ave, Cambridge, MA 02138 USA. EM pgirguis@oeb.harvard.edu FU National Science Foundation [OCE-1061934, OCE-0838107]; Gordon and Betty Moore Foundation; Ocean Leadership; DOE [DE-ACO5-76RLO 1830] FX We thank Deb Kelley, Mitch Elend, Wiebke Ziebis, and Mary Lilley for their assistance in deploying and recovering the BOSSes. We also thank Kiana Frank and Tsiu Moorosi for their invaluable contributions during the early phase of this project. Thanks to Jennifer Delaney for a critical review of this manuscript. This work was supported by grants to PRG from the National Science Foundation (OCE-1061934, OCE-0838107), the Gordon and Betty Moore Foundation, and Ocean Leadership. Portions of this research were performed in the Environmental Molecular Sciences Laboratory (EMSL), a DOE/BER national scientific user facility located at Pacific Northwest National Laboratory (PNNL) in Richland, Washington. PNNL is a multiprogram national laboratory operated by Battelle for the DOE under Contract DE-ACO5-76RLO 1830. C-DEBI contribution number 145. NR 36 TC 10 Z9 10 U1 4 U2 30 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD MAY 7 PY 2013 VL 47 IS 9 BP 4399 EP 4407 DI 10.1021/es3037302 PG 9 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 141WA UT WOS:000318756000057 PM 23495803 ER PT J AU Dimkpa, CO Latta, DE McLean, JE Britt, DW Boyanov, MI Anderson, AJ AF Dimkpa, Christian O. Latta, Drew E. McLean, Joan E. Britt, David W. Boyanov, Maxim I. Anderson, Anne J. TI Fate of CuO and ZnO Nano- and Microparticles in the Plant Environment SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID PSEUDOMONAS-CHLORORAPHIS O6; METAL-OXIDE NANOPARTICLES; SOYBEAN GLYCINE-MAX; ZEA-MAYS L.; SILVER NANOPARTICLES; OXIDATIVE STRESS; SOIL BACTERIUM; WHEAT; COPPER; PHYTOTOXICITY AB The environmental fate of metal oxide particles as a function of size was assessed by comparing the behavior of CuO or ZnO nanoparticles (NPs) to that of the corresponding microparticles (MPs) in a sand matrix, with and without wheat (Triticum aestivum L) growth. After 14 days of incubation in the planted sand, the CuO and ZnO NPs were increased from their nominal sizes of <50 nm and <100 nm, to similar to 317 nm and similar to 483 nm, respectively. Accordingly, the negative surface charge of colloids present in aqueous extracts from the sand amended with CuO (-27.0 mV) and ZnO (-10.0 mV) NPs was reduced by the presence of plants, to -19.8 mV and -6.0 mV, respectively. The surface charge of the MPs was not influenced by plants. Plant growth increased dissolution of NPs and MPs of both metal oxides in the sand from <0.3 mg/kg to about 1.0 mg/kg for the CuO products, and from <= 0.6 mg/kg to between 1.0 and 2.2 mg/kg for the Zn products. The NP or MP products reduced wheat root length by similar to 60% or similar to 50% from control levels; CuO was more toxic than ZnO. X-ray absorption spectroscopy (XAS) analysis showed that treatments with MPs or NPs of ZnO led to similar accumulations of Zn phosphate species in the shoots, likely from dissolution of ZnO. Exposure to CuO NPs or MPs resulted in similar XAS spectra for Cu in the shoots explained by plant accumulation of both CuO and Cu-1-sulfur complexes. These findings demonstrate the similarities between commercial NPs and MPs of CuO or ZnO in wheat plants, with greater root toxicity correlating with smaller particle size. Factors from the sand and the plant modified the aggregation or dissolution of both types of particles, thus, influencing their, environmental fates. C1 [Dimkpa, Christian O.; Anderson, Anne J.] Utah State Univ, Dept Biol, Logan, UT 84322 USA. [Latta, Drew E.; Boyanov, Maxim I.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [McLean, Joan E.] Utah State Univ, Utah Water Res Lab, Logan, UT 84322 USA. [Britt, David W.] Utah State Univ, Dept Biol Engn, Logan, UT 84322 USA. RP Dimkpa, CO (reprint author), Utah State Univ, Dept Biol, Logan, UT 84322 USA. EM cdimkpa@usu.edu RI BM, MRCAT/G-7576-2011; Latta, Drew/A-3030-2014; Anderson, Anne/B-7313-2014 FU United States Department of Agriculture (USDA-CSREES) [2011-03581]; Utah Agricultural Experiment Station [8442]; Utah Water Research Laboratory; DOE [DE-AC02-06CH11357]; U.S. Department of Energy (DOE); MRCAT/EnviroCAT Sector 10BM beamline; MRCAT member institutions FX This work was supported by the United States Department of Agriculture (USDA-CSREES) grant 2011-03581, the Utah Agricultural Experiment Station (Journal Paper # 8442), and the Utah Water Research Laboratory. For XANES and XRD data acquisition, we would like to thank John Katsoudas and Edward Lang for support at the MRCAT/EnviroCAT Sector 10BM beamline. Ken Kemner and Bhoopesh Mishra are thanked for their helpful input regarding the XAS and for help at the beamline. MRCAT operations are supported by U.S. Department of Energy (DOE) and the MRCAT member institutions. Use of the Advanced Photon Source, an Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory, is supported by the DOE under Contract No. DE-AC02-06CH11357. NR 50 TC 43 Z9 46 U1 16 U2 197 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD MAY 7 PY 2013 VL 47 IS 9 BP 4734 EP 4742 DI 10.1021/es304736y PG 9 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 141WA UT WOS:000318756000098 PM 23540424 ER PT J AU Venteris, ER Skaggs, RL Coleman, AM Wigmosta, MS AF Venteris, Erik R. Skaggs, Richard L. Coleman, Andre M. Wigmosta, Mark S. TI A GIS Cost Model to Assess the Availability of Freshwater, Seawater, and Saline Groundwater for Algal Biofuel Production in the United States SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID ALTERNATIVES; GROWTH AB A key advantage of using microalgae for biofuel production is the ability of some algal strains to thrive in waters unsuitable for conventional crop irrigation such as saline groundwater or seawater. Nonetheless, the availability of sustainable water supplies will provide significant challenges for scale-up and development of algal biofuels. We conduct a partial techno-economic assessment based on the availability of freshwater, saline groundwater, and seawater for use in open pond algae cultivation systems. We explore water issues through GIS-based models of algae biofuel production, freshwater supply (constrained to less than 5% of mean annual flow per watershed) and costs, and cost distance models for supplying seawater and saline groundwater. We estimate that, combined, these resources can support 946 X 10(7) m(3) yr(-1) (25 billion gallons yr(-1)) of renewable biodiesel production in the coterminous United States. Achievement of larger targets requires the utilization of less water efficient sites and relatively expensive saline waters. Despite the addition of freshwater supply constraints and saline water resources, the geographic conclusions are similar to our previous results. Freshwater availability and saline water delivery costs are most favorable for the coast of the Gulf of Mexico and Florida peninsula, where evaporation relative to precipitation is moderate. As a whole, the barren and scrub lands of the southwestern US. have limited freshwater supplies, and large net evaporation rates greatly increase the cost of saline alternatives due to the added makeup water required to maintain pond salinity. However, this and similar analyses are particularly sensitive to knowledge gaps in algae growth/lipid production performance and the proportion of freshwater resources available, key topics for future investigation. C1 [Venteris, Erik R.; Skaggs, Richard L.; Coleman, Andre M.; Wigmosta, Mark S.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Venteris, ER (reprint author), Pacific NW Natl Lab, POB 999,MSIN K9-33, Richland, WA 99352 USA. EM erik.venteris@pnnl.gov OI Venteris, Erik/0000-0001-9863-6098 FU US Department of Energy [DE-EE0003046, DE-AC06-76RLO 1830] FX The authors would like to acknowledge funding of this work by the US Department of Energy under Contract DE-EE0003046 awarded to the National Alliance for Advanced Biofuels and Bioproducts. The Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the U.S. Department of Energy under contract DE-AC06-76RLO 1830. NR 29 TC 24 Z9 25 U1 3 U2 62 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD MAY 7 PY 2013 VL 47 IS 9 BP 4840 EP 4849 DI 10.1021/es304135b PG 10 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 141WA UT WOS:000318756000110 PM 23495893 ER PT J AU Harvey, OR Qafoku, NP Cantrell, KJ Lee, G Amonette, JE Brown, CF AF Harvey, Omar R. Qafoku, Nikolla P. Cantrell, Kirk J. Lee, Giehyeon Amonette, James E. Brown, Christopher F. TI Response to Comment on "Geochemical Implications of Gas Leakage associated with Geologic CO2 Storage-A Qualitative Review" SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Letter C1 [Harvey, Omar R.; Qafoku, Nikolla P.; Cantrell, Kirk J.; Brown, Christopher F.] Pacific NW Natl Lab, Geosci Grp, Richland, WA 99354 USA. [Harvey, Omar R.] Univ So Mississippi, Dept Geog & Geol, Hattiesburg, MS 39406 USA. [Lee, Giehyeon] Yonsei Univ, Dept Earth Syst Sci, Seoul 120749, South Korea. [Amonette, James E.] Pacific NW Natl Lab, Div Phys Sci, Richland, WA 99354 USA. RP Harvey, OR (reprint author), Pacific NW Natl Lab, Geosci Grp, 902 Battelle Blvd,K6-81, Richland, WA 99354 USA. EM omar.harvey@usm.edu OI Qafoku, Nikolla P./0000-0002-3258-5379 NR 5 TC 0 Z9 0 U1 0 U2 19 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD MAY 7 PY 2013 VL 47 IS 9 BP 4951 EP 4952 DI 10.1021/es401090n PG 2 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 141WA UT WOS:000318756000125 PM 23506077 ER PT J AU Boesenberg, AJ Restorff, JB Wun-Fogle, M Sailsbury, H Summers, E AF Boesenberg, A. J. Restorff, J. B. Wun-Fogle, M. Sailsbury, H. Summers, E. TI Texture development in Galfenol wire SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID FE-GA; ALLOYS AB Galfenol (Fe-Ga alloy) wire fabrication provides a low cost alternative to directional solidification methods. This work evaluates the compositional dependence of the wire drawing suitability of Fe-Ga and characterizes the microstructural and magnetic properties of these wires. Wire has been produced with Ga contents between 10 at.% and 17 at.% to allow determination of the ductile to brittle transition (DTBT) in wire manufacture. Published results on chill cast bend specimens indicated that a DTBT occurs at roughly 15 at.% Ga. This DTBT was observed under tensile loading with a corresponding change in fracture behavior from transverse fracture to intergranular fracture. For improved magnetostrictive performance, higher Ga contents are desired, closer to the 17 at.% Ga evaluated in this work. Electron backscattered diffraction B-H loop and resonance measurements as a function of magnetic field (to determine modulus and coupling factor) are presented for as-drawn, furnace, and direct current (DC) annealed wire. Galfenol wire produced via traditional drawing methods is found to have a strong < 110 > (alpha) texture parallel to the drawing direction. As-drawn wire was observed to have a lower magnetic permeability and larger hysteresis than DC annealed wire. This is attributed to the presence of a large volume of crystalline defects; such as vacancies and dislocations. (C) 2013 American Institute of Physics. C1 [Boesenberg, A. J.; Summers, E.] ETREMA Prod Inc, Ames, IA 50010 USA. [Restorff, J. B.; Wun-Fogle, M.] USN, Ctr Surface Warfare, Carderock Div, West Bethesda, MD 20817 USA. [Sailsbury, H.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Boesenberg, AJ (reprint author), ETREMA Prod Inc, Ames, IA 50010 USA. EM adam.boesenberg@etrema.com NR 11 TC 2 Z9 2 U1 1 U2 19 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17A909 DI 10.1063/1.4794186 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800054 ER PT J AU Brown, BL Lee, M Clem, PG Nordquist, CD Jordan, TS Wolfley, SL Leonhardt, D Edney, C Custer, JA AF Brown, B. L. Lee, Mark Clem, P. G. Nordquist, C. D. Jordan, T. S. Wolfley, S. L. Leonhardt, D. Edney, C. Custer, J. A. TI Electrical and optical characterization of the metal-insulator transition temperature in Cr-doped VO2 thin films SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID MOTT-HUBBARD; BAND THEORY; VANADIUM DIOXIDE; PEIERLS; VIEW AB The effect of Cr doping on electrical and optical properties of CrxV1-xO2 thin films across the metal-insulator transition has been studied. Resistance, Hall effect, and infrared reflectance show that Cr doping systematically increases the transition temperature T-c from 59 degrees C at x=0 to 70 degrees C at x=0.11 with similar transition width and hysteresis from DC to infrared, but the effect appears to saturate. The conductance contrast between insulating and metallic phases decreases with Cr doping. The effects of carrier density and mobility changes across T-c will be discussed. (C) 2013 AIP Publishing LLC. C1 [Brown, B. L.; Lee, Mark] Univ Texas Dallas, Dept Phys, Richardson, TX 75080 USA. [Clem, P. G.; Nordquist, C. D.; Jordan, T. S.; Wolfley, S. L.; Leonhardt, D.; Edney, C.; Custer, J. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Brown, BL (reprint author), Univ Texas Dallas, Dept Phys, Richardson, TX 75080 USA. NR 16 TC 9 Z9 9 U1 8 U2 99 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 173704 DI 10.1063/1.4803551 PG 4 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800351 ER PT J AU Frantti, J Fujioka, Y Puretzky, A Xie, Y Ye, ZG Glazer, AM AF Frantti, J. Fujioka, Y. Puretzky, A. Xie, Y. Ye, Z. -G. Glazer, A. M. TI A statistical model approximation for perovskite solid-solutions: A Raman study of lead-zirconate-titanate single crystal SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID MORPHOTROPIC PHASE-BOUNDARY; NEUTRON POWDER DIFFRACTION; PB(ZRXTI1-X)O-3 CERAMICS; TETRAGONAL BATIO3; PBTIO3; TEMPERATURE; PB(ZR(X)TI1-X)O-3; PBZR1-XTIXO3; TRANSITIONS; SCATTERING AB Lead titanate (PbTiO3) is a classical example of a ferroelectric perovskite oxide illustrating a displacive phase transition accompanied by softening of a symmetry-breaking mode. The underlying assumption justifying the soft-mode theory is that the crystal is macroscopically sufficiently uniform that a meaningful free energy function can be formed. In contrast to PbTiO3, experimental studies show that the phase transition behaviour of lead-zirconate-titanate solid solution (PZT) is far more subtle. Most of the studies on the PZT system have been dedicated to ceramic or powder samples, in which case an unambiguous soft-mode study is not possible, as modes with different symmetries appear together. Our Raman scattering study on titanium-rich PZT single crystal shows that the phase transitions in PZT cannot be described by a simple soft-mode theory. In strong contrast to PbTiO3, splitting of transverse E-symmetry modes reveals that there are different locally ordered regions. The role of crystal defects, random distribution of Ti and Zr at the B-cation site and Pb ions shifted away from their ideal positions, dictates the phase transition mechanism. A statistical model explaining the observed peak splitting and phase transformation to a complex state with spatially varying local order in the vicinity of the morphotropic phase boundary is given. (C) 2013 American Institute of Physics. C1 [Frantti, J.; Fujioka, Y.] Aalto Univ, Dept Appl Phys, FI-00076 Aalto, Finland. [Puretzky, A.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Xie, Y.; Ye, Z. -G.] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada. [Xie, Y.; Ye, Z. -G.] Simon Fraser Univ, LABS 4D, Burnaby, BC V5A 1S6, Canada. [Glazer, A. M.] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England. RP Frantti, J (reprint author), Aalto Univ, Dept Appl Phys, FI-00076 Aalto, Finland. RI Puretzky, Alexander/B-5567-2016 OI Puretzky, Alexander/0000-0002-9996-4429 NR 50 TC 14 Z9 15 U1 2 U2 44 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 174104 DI 10.1063/1.4798391 PG 11 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800372 ER PT J AU Hadimani, RL Nlebedim, IC Melikhov, Y Jiles, DC AF Hadimani, R. L. Nlebedim, I. C. Melikhov, Y. Jiles, D. C. TI Growth and characterisation of Gd-5(SixGe1-x)(4) thin film SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID MAGNETIC REFRIGERATION; ROOM-TEMPERATURE; TRANSITION; FIELD AB We report for the first time successful growth of magnetic thin films containing the Gd-5(SixGe1-x)(4) phase, which is expected to show giant magnetocaloric properties. The film was deposited by Pulsed Laser Deposition (PLD) on a (001) silicon wafer at 200 degrees C from a polycrystalline Gd5Si2.09Ge1.91 target prepared by arc melting. PLD was achieved using a femto second laser with a repetition rate of 1 kHz, and a pulse energy of up to 3.5 mJ. The average film thickness was measured to be 400 nm using a Scanning Electron Microscopy and the composition of the film was analyzed using Energy Dispersive Spectroscopy and found to be close to the target composition. X-Ray Diffraction analysis confirmed the presence of Gd5Si2Ge2 monoclinic structure. Magnetic moment vs. magnetic field measurement confirmed that the film was ferromagnetic at a temperature of 200 K. The transition temperature of the film was determined from a plot of magnetic moment vs. temperature. The transition temperature was between 280 and 300 K which is close to the transition temperature of the bulk material. (C) 2013 American Institute of Physics. C1 [Hadimani, R. L.; Nlebedim, I. C.; Jiles, D. C.] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA. [Hadimani, R. L.; Nlebedim, I. C.; Jiles, D. C.] Iowa State Univ, US Dept Energy, Ames Lab, Ames, IA 50011 USA. [Melikhov, Y.] Cardiff Univ, Wolfson Ctr Magnet, Cardiff CF24 3AA, S Glam, Wales. RP Hadimani, RL (reprint author), Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA. EM hadimani@iastate.edu NR 11 TC 5 Z9 5 U1 0 U2 16 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17A935 DI 10.1063/1.4799975 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800080 ER PT J AU Hahn, SE Tucker, GS Yan, JQ Said, AH Leu, BM McCallum, RW Alp, EE Lograsso, TA McQueeney, RJ Harmon, BN AF Hahn, S. E. Tucker, G. S. Yan, J. -Q. Said, A. H. Leu, B. M. McCallum, R. W. Alp, E. E. Lograsso, T. A. McQueeney, R. J. Harmon, B. N. TI Magnetism dependent phonon anomaly in LaFeAsO observed via inelastic x-ray scattering SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID HIGH-TEMPERATURE SUPERCONDUCTIVITY AB The phonon dispersion was measured at room temperature (above the Neel temperature T-N) along (0,0,L) in the tetragonal phase of LaFeAsO using inelastic x-ray scattering. Magnetostructural effects are well documented in the AFe(2)As(2)-based (A = Ca, Sr, Ba, Eu) systems. Only recently have single crystals of LaFeAsO become available. The experimentally observed splitting between two A(1g) phonon modes at 22 and 26 meV is only reproduced in spin-polarized calculations. Magnetostructural effects similar to those observed in the AFe(2)As(2) materials are confirmed to be present in LaFeAsO. This is discussed in terms of the strong antiferromagnetic correlations that are known to persist above T-N and into the tetragonal phase. (C) 2013 AIP Publishing LLC C1 [Hahn, S. E.; Tucker, G. S.; McQueeney, R. J.; Harmon, B. N.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Hahn, S. E.; Tucker, G. S.; Yan, J. -Q.; McCallum, R. W.; Lograsso, T. A.; McQueeney, R. J.; Harmon, B. N.] Iowa State Univ, Ames Lab US DOE, Div Mat Sci & Engn, Ames, IA 50011 USA. [Said, A. H.; Leu, B. M.; Alp, E. E.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Yan, J. -Q.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Yan, J. -Q.] Univ Tennessee, Dept Mat & Engn, Knoxville, TN 37996 USA. RP Hahn, SE (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. EM mcqueeney@ameslab.gov RI Tucker, Gregory/L-9357-2013; McQueeney, Robert/A-2864-2016 OI Tucker, Gregory/0000-0002-2787-8054; McQueeney, Robert/0000-0003-0718-5602 NR 14 TC 0 Z9 0 U1 0 U2 14 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E153 DI 10.1063/1.4800657 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800315 ER PT J AU Kaur, M McCloy, JS Qiang, Y AF Kaur, M. McCloy, J. S. Qiang, Y. TI Exchange bias in core-shell iron-iron oxide nanoclusters SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID MAGNETIC-ANISOTROPY; NANOPARTICLES AB An exchange bias study has been performed on core-shell iron-iron oxide (Fe-Fe3O4) nanoclusters (NCs) of sizes 11 nm and 14 nm carrying a different core to shell ratio. NCs show complicated behaviors due to competition between interfacial exchange and Zeeman energy in the presence of magnetic field during cooling. These behaviors are accompanied by the evolution of size-dependent cluster structures in the ferromagnetic-core/ferri- or antiferro-magnetic-shell. Smaller clusters have larger coercive field, exchange bias field, and vertical magnetization shift due to the greater contribution from frozen spins of shell/interfaces and magnetic frustration by the defects and voids present at the interface. These smaller clusters thus also show more dramatic changes with the training effect. Both sizes of clusters display an additional anomaly of the upper part of the hysteresis loop at 10 K under low cooling field (0.1 kOe). This anomaly decreases with number of loop cycles with same field, and disappears with large cooling field (>0.1 kOe). It may be caused by the competition between the magnetization reversal and the magnetostatic interactions. (C) 2013 American Institute of Physics. C1 [Kaur, M.; Qiang, Y.] Univ Idaho, Dept Phys, Moscow, ID 83844 USA. [McCloy, J. S.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Qiang, Y (reprint author), Univ Idaho, Dept Phys, Moscow, ID 83844 USA. EM youqiang@uidaho.edu RI McCloy, John/D-3630-2013 OI McCloy, John/0000-0001-7476-7771 NR 23 TC 10 Z9 10 U1 1 U2 37 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17D715 DI 10.1063/1.4799522 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800233 ER PT J AU Khan, M Paudyal, D Gschneidner, KA Pecharsky, VK AF Khan, Mahmud Paudyal, D. Gschneidner, K. A., Jr. Pecharsky, V. K. TI Magnetic properties of Ho1-xErxAl2 alloys SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID SPIN-REORIENTATION; SINGLE-CRYSTAL; HOAL2; HEAT; ANISOTROPY; FIELD AB HoAl2 exhibits a first order spin reorientation transition at 20 K. Heat capacity measurements showed that when Ho is partially replaced by Er in Ho1-xErxAl2, the spin reorientation transition is gradually suppressed, while slowly shifting to higher temperatures with increasing Er concentration. In this paper, we investigate the magnetic properties of pseudo binary Ho1-xErxAl2 alloys by ac and dc magnetization measurements. The magnetization data show that the magnetic interactions below T-C are dramatically modified when Er is added in Ho1-xErxAl2. For a better explanation of the experimental data, results of first principles calculations have been presented as well. (c) 2013 American Institute of Physics. C1 [Khan, Mahmud; Paudyal, D.; Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA. [Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. RP Khan, M (reprint author), Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA. EM mahmudk@iastate.edu NR 16 TC 1 Z9 1 U1 0 U2 12 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E106 DI 10.1063/1.4793605 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800268 ER PT J AU Leary, AM Lucas, MS Ohodnicki, PR Kernion, SJ Mauger, L Park, C Kenney-Benson, C McHenry, ME AF Leary, A. M. Lucas, M. S. Ohodnicki, P. R. Kernion, S. J. Mauger, L. Park, C. Kenney-Benson, C. McHenry, M. E. TI The influence of pressure on the phase stability of nanocomposite Fe89Zr7B4 during heating from energy dispersive x-ray diffraction SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID NANOCRYSTALLINE; CRYSTALLIZATION; ALLOYS; GOLD AB Nanocomposite materials consisting of small crystalline grains embedded within an amorphous matrix show promise for many soft magnetic applications. The influence of pressure is investigated by in situ diffraction of hammer milled Fe89Zr7B4 during heating through the alpha -> gamma Fe transition at 0.5, 2.2, and 4.9 GPa. The changes in primary and secondary crystallization onset are described by diffusion and the energy to form a critical nucleus within the framework of classical nucleation theory. (C) 2013 American Institute of Physics. C1 [Leary, A. M.; Kernion, S. J.; McHenry, M. E.] Carnegie Mellon Univ, Mat Sci & Engn Dept, Pittsburgh, PA 15213 USA. [Lucas, M. S.] USAF, Res Lab, Wright Patterson AFB, OH 45433 USA. [Ohodnicki, P. R.] Natl Energy Technol Lab, Div Chem & Surface Sci, Pittsburgh, PA 15236 USA. [Mauger, L.] CALTECH, WM Keck Lab 138 78, Pasadena, CA 91125 USA. [Park, C.; Kenney-Benson, C.] Carnegie Inst Sci, Geophys Lab, HPCAT, Argonne, IL 60439 USA. RP Leary, AM (reprint author), Carnegie Mellon Univ, Mat Sci & Engn Dept, 5000 Forbes Ave, Pittsburgh, PA 15213 USA. EM mm7g@andrew.cmu.edu RI Park, Changyong/A-8544-2008 OI Park, Changyong/0000-0002-3363-5788 NR 23 TC 2 Z9 2 U1 1 U2 16 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17A317 DI 10.1063/1.4795326 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800018 ER PT J AU Lee, Y Harmon, BN AF Lee, Y. Harmon, B. N. TI Rhombohedral distortion effects on electronic structure of LaCoO3 SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID SPIN-STATE; TRANSITION AB With a first principles method, we have investigated the rhombohedral distortion effects on the electronic structure of LaCoO3. Fixed spin moment calculations show two local minima-a non-magnetic and a similar to 1.3 mu(B) magnetic state. The energy difference between these states is sensitive to the rhombohedral distortion. The Generalized Gradient Approximation (GGA) calculation agrees with experimental results without the need for a U potential. The Local Density Approximation (LDA) calculation gives similar results but it needs slightly stronger distortions to reach the non-magnetic ground state. We show that the opening of a gap at E-F also depends on the rhombohedral distortion. (C) 2013 American Institute of Physics. C1 [Lee, Y.] Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Ames, IA 50011 USA. RP Lee, Y (reprint author), Ames Lab, Ames, IA 50011 USA. EM harmon@ameslab.gov NR 12 TC 7 Z9 7 U1 6 U2 49 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E145 DI 10.1063/1.4798350 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800307 ER PT J AU Li, SD Liu, M Shao, WQ Xu, J Chen, SO Zhou, ZY Nan, TX Sun, NAX Duh, JG AF Li, Shandong Liu, Ming Shao, Weiquan Xu, Jie Chen, Sha'ou Zhou, Ziyao Nan, Tianxiang Sun, Nian X. Duh, Jenq-Gong TI Large E-field tunability of microwave ferromagnetic properties in Fe50Co50-Hf/lead zinc niobate-lead titanate multiferroic laminates SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID FREQUENCY PERFORMANCE; MAGNETIC-ANISOTROPY; HETEROSTRUCTURES AB Fe50Co50-Hf films were deposited on the (011)-cut single crystal lead zinc niobate-lead titanate (PZN-PT) substrates by a composition gradient sputtering (CGS) method. Strong converse magnetoelectric (ME) coupling was observed in the multiferroic laminates of CGS Fe50Co50-Hf/PZN-PT, which exhibited a large electric field (E-field) tunability of microwave magnetic properties. With the increase of E-field strength from 0 to 8 kV/cm, the ferromagnetic resonance (FMR) fields H-r shifted upwards by 270.2 Oe and downwards by 237.7 Oe along hard axis and easy axis directions, being equivalent to 33.8 and 29.7 Oe cm/kV, respectively. Accordingly, the self-biased ferromagnetic resonance frequency f(FMR) significantly enhanced from 4.0 to 6.5 GHz with an increment of Delta f(FMR) = 2.5 GHz under a zero-bias magnetic field, and the magnetic damping constant a decreases from 0.0280 to 0.0185. The strong ME coupling between CGS Fe50Co50-Hf film and PZN-PT substrate not only enhanced the f(FMR) but also reduced the magnetic loss at microwave frequencies, which gives great opportunity in fabrication of tunable microwave devices. (C) 2013 American Institute of Physics. C1 [Li, Shandong; Shao, Weiquan; Xu, Jie; Chen, Sha'ou] Qingdao Univ, Coll Phys Sci, Qingdao 266071, Peoples R China. [Li, Shandong] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China. [Liu, Ming] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Zhou, Ziyao; Nan, Tianxiang; Sun, Nian X.] Northeastern Univ, Elect & Comp Engn Dept, Boston, MA 02115 USA. [Duh, Jenq-Gong] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan. RP Li, SD (reprint author), Qingdao Univ, Coll Phys Sci, Qingdao 266071, Peoples R China. EM dylsd007@yahoo.com.cn RI Liu, Ming/B-4143-2009; Zhou, Ziyao/N-8398-2015; Nan, Tianxiang/O-3820-2015; Nan, Tianxiang/A-8020-2016; Sun, Nian Xiang/F-9590-2010 OI Liu, Ming/0000-0002-6310-948X; Zhou, Ziyao/0000-0002-2389-1673; Sun, Nian Xiang/0000-0002-3120-0094 NR 18 TC 11 Z9 11 U1 3 U2 51 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17C727 DI 10.1063/1.4799486 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800211 ER PT J AU Li, SD Du, HL Xue, Q Xie, SM Liu, M Shao, WQ Xu, J Nan, TX Sun, NX Duh, JG AF Li, Shandong Du, Honglei Xue, Qian Xie, Shiming Liu, Ming Shao, Weiquan Xu, Jie Nan, Tianxiang Sun, Nian X. Duh, Jenq-Gong TI Stress competition and vortex magnetic anisotropy in FeCoAlO high-frequency soft magnetic films with gradient Al-O contents SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID SPIRAL INDUCTORS AB A vortex magnetic anisotropy (VMA) was formed via the competition of residual stresses between radial and tangential directions in the FeCoAlO soft magnetic films (SMFs), prepared by a composition gradient sputtering (CGS) method. The VMA of the magnetic films gives rise to a rotating excitation direction of the ferromagnetic resonance. As a results, the as-deposited FeCoAlO films exhibit good high-frequency ferromagnetic properties with high permeability about 100, cut-off frequency over 2 GHz, and Q(m) factor over 50 along its individual excitation direction. These SMFs with the VMA are promising in the integration with the circular spiral inductors due to the geometrical match between the excitation direction of the SMFs and the circular inductor lines. (C) 2013 American Institute of Physics. C1 [Li, Shandong; Du, Honglei; Xue, Qian; Xie, Shiming; Shao, Weiquan; Xu, Jie] Qingdao Univ, Coll Phys Sci, Qingdao 266071, Peoples R China. [Li, Shandong] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China. [Liu, Ming] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Nan, Tianxiang; Sun, Nian X.] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA. [Duh, Jenq-Gong] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan. RP Li, SD (reprint author), Qingdao Univ, Coll Phys Sci, Qingdao 266071, Peoples R China. EM dylsd007@yahoo.com.cn RI Liu, Ming/B-4143-2009; Nan, Tianxiang/O-3820-2015; Nan, Tianxiang/A-8020-2016; Sun, Nian Xiang/F-9590-2010; OI Liu, Ming/0000-0002-6310-948X; Sun, Nian Xiang/0000-0002-3120-0094; Nan, Tianxiang/0000-0001-6804-2029 NR 12 TC 6 Z9 6 U1 1 U2 26 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17A332 DI 10.1063/1.4799480 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800033 ER PT J AU Liu, J Smetana, V Gschneidner, KA Miller, GJ Pecharsky, VK AF Liu, J. Smetana, V. Gschneidner, K. A., Jr. Miller, G. J. Pecharsky, V. K. TI The crystal structure and magnetic properties of Pr117Co56.7Ge112 SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID DY AB The ternary intermetallic compound Pr117Co56.7Ge112 adopts the cubic Tb117Fe52Ge112-type related structure with the lattice parameter a = 29.330(3) angstrom. The compound exhibits one prominent magnetic transition at similar to 10 K and two additional weak magnetic anomalies are observed at similar to 26 K and similar to 46 K in a 1 kOe applied field. At a higher field of 10 kOe, only one broad ferromagnetic-like transition remains at 12 K. The inverse magnetic susceptibility of Pr117Co56.7Ge112 obeys the Curie-Weiss law with a positive value of the paramagnetic Curie temperature (theta(P) = 24 K), indicating that ferromagnetic interactions are dominant. The effective magnetic moment is 3.49 mu(B)/Pr, which is close to the theoretical effective paramagnetic moment of 3.58 mu(B) for the Pr3+ ion. (C) 2013 American Institute of Physics. C1 [Liu, J.; Smetana, V.; Gschneidner, K. A., Jr.; Miller, G. J.; Pecharsky, V. K.] Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA. [Liu, J.; Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Smetana, V.; Miller, G. J.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Liu, J (reprint author), Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA. EM liujing@iastate.edu RI Smetana, Volodymyr/C-1340-2015; OI Smetana, Volodymyr/0000-0003-0763-1457 NR 14 TC 0 Z9 0 U1 0 U2 11 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E120 DI 10.1063/1.4794376 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800282 ER PT J AU Liu, SS Ma, BH Narayanan, M Tong, S Koritala, RE Hu, ZQ Balachandran, U AF Liu, Shanshan Ma, Beihai Narayanan, Manoj Tong, Sheng Koritala, Rachel E. Hu, Zhongqiang Balachandran, Uthamalingam TI Dielectric properties of lead lanthanum zirconate titanate thin films with and without ZrO2 insertion layers SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID LEAKAGE CURRENT; ELECTRICAL-PROPERTIES; CAPACITORS AB The dielectric properties of lead lanthanum zirconate titanate (PLZT) thin films on platinized silicon (Pt/Si) with and without ZrO2 insertion layers were investigated in the temperature range from 20 degrees C to 300 degrees C. Permittivity, dielectric loss tangent, and tunability were reduced for the samples with ZrO2 insertion layers compared to those without the layers. Additionally, the permittivity was less dependent on frequency over the broad temperature range studied (20-300 degrees C). The leakage current behavior of the PLZT films with and without ZrO2 insertion layers was also investigated, and on the basis of those results, a probable conduction mechanism has been suggested. The improved electrical properties in the PLZT with ZrO2 layers are attributed to the ZrO2 layer blocking the mobile ionic defects and reducing free charge carriers to transport. (C) 2013 AIP Publishing LLC. C1 [Liu, Shanshan; Ma, Beihai; Narayanan, Manoj; Hu, Zhongqiang; Balachandran, Uthamalingam] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA. [Tong, Sheng; Koritala, Rachel E.] Argonne Natl Lab, Nanosci & Technol Div, Argonne, IL 60439 USA. RP Liu, SS (reprint author), Argonne Natl Lab, Div Energy Syst, 9700 S Cass Ave, Argonne, IL 60439 USA. EM sliu@anl.gov RI Tong, Sheng/A-2129-2011; Hu, Zhongqiang/I-2528-2012; Ma, Beihai/I-1674-2013 OI Tong, Sheng/0000-0003-0355-7368; Hu, Zhongqiang/0000-0002-7534-0427; Ma, Beihai/0000-0003-3557-2773 NR 28 TC 3 Z9 3 U1 1 U2 15 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 174107 DI 10.1063/1.4804170 PG 6 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800375 ER PT J AU Lu, WL He, KH Song, WD Sun, CJ Chow, GM Chen, JS AF Lu, Wenlai He, Kaihua Song, Wendong Sun, Cheng-Jun Chow, Gan Moog Chen, Jing-sheng TI Effect of oxygen vacancies on the electronic structure and transport properties of SrRuO3 thin films SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID LASER DEPOSITION AB Epitaxial SrRuO3 films were grown under different oxygen partial pressures inducing different amounts of oxygen vacancies. In spite of microstructural disorders, a considerable improvement in the conductivity was observed at ambient temperature with increasing the oxygen vacancies. The oxygen vacancies are responsible for the conductivity improvement by enhancing the orbital overlap between Ru d(z)(2) and O p(z) orbitals. The finding indicates that the oxygen vacancy plays an important role in determining the transport properties of perovskite oxides, by modifying their electronic structures. (C) 2013 American Institute of Physics. C1 [Lu, Wenlai; He, Kaihua; Chow, Gan Moog; Chen, Jing-sheng] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore. [Lu, Wenlai; Song, Wendong] ASTAR, Data Storage Inst, Singapore 117608, Singapore. [Sun, Cheng-Jun] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Chen, JS (reprint author), Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore. EM msecj@nus.edu.sg RI He, Kaihua/E-8469-2011; Chen, Jingsheng/D-9107-2011; Lu, Wenlai/F-2869-2015 NR 24 TC 6 Z9 6 U1 6 U2 48 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E125 DI 10.1063/1.4795011 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800287 ER PT J AU Lucas, MS Mauger, L Munoz, JA Halevy, I Horwath, J Semiatin, SL Leontsev, SO Stone, MB Abernathy, DL Xiao, YM Chow, P Fultz, B AF Lucas, M. S. Mauger, L. Munoz, J. A. Halevy, I. Horwath, J. Semiatin, S. L. Leontsev, S. O. Stone, M. B. Abernathy, D. L. Xiao, Yuming Chow, Paul Fultz, B. TI Phonon densities of states of face-centered-cubic Ni-Fe alloys SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID NUCLEAR RESONANT SCATTERING; DYNAMICS AB Inelastic neutron scattering and nuclear resonant inelastic x-ray scattering were used to determine the phonon densities of states of face-centered-cubic Ni-Fe alloys. Increasing Fe concentration results in an average softening of the phonon modes. Chemical ordering of the Ni0.72Fe0.28 alloy results in a reduction of the partial vibrational entropy of the Fe atoms but does not significantly change the partial vibrational entropy of the Ni atoms. Changes in the phonon densities of states with composition and chemical ordering are discussed and analyzed with a cluster expansion method. (C) 2013 American Institute of Physics. C1 [Lucas, M. S.; Horwath, J.; Semiatin, S. L.; Leontsev, S. O.] USAF, Res Lab, Wright Patterson AFB, OH 45433 USA. [Lucas, M. S.] UTC Inc, Dayton, OH 45432 USA. [Mauger, L.; Munoz, J. A.; Halevy, I.; Fultz, B.] CALTECH, WM Keck Lab 138 78, Pasadena, CA 91125 USA. [Leontsev, S. O.] Univ Dayton, Res Inst, Dayton, OH 45469 USA. [Stone, M. B.; Abernathy, D. L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Xiao, Yuming; Chow, Paul] Carnegie Inst Sci, Geophys Lab, HPCAT, Argonne, IL 60439 USA. RP Lucas, MS (reprint author), USAF, Res Lab, Wright Patterson AFB, OH 45433 USA. EM matthew.steven.lucas@gmail.com RI Munoz, Jorge/C-8427-2011; Stone, Matthew/G-3275-2011; Abernathy, Douglas/A-3038-2012; BL18, ARCS/A-3000-2012; SEMIATIN, SHELDON/E-7264-2017 OI Stone, Matthew/0000-0001-7884-9715; Abernathy, Douglas/0000-0002-3533-003X; NR 20 TC 3 Z9 3 U1 0 U2 22 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17A308 DI 10.1063/1.4794354 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800009 ER PT J AU Machado, LD Bezerra, CG Correa, MA Chesman, C Pearson, JE Hoffmann, A AF Machado, L. D. Bezerra, C. G. Correa, M. A. Chesman, C. Pearson, J. E. Hoffmann, A. TI Static and dynamic properties of Fibonacci multilayers SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID PERIODIC MAGNETIC MULTILAYERS; GIANT MAGNETORESISTANCE; BIQUADRATIC EXCHANGE; SPIN-WAVES; SUPERLATTICES; FILMS AB We theoretically investigate static and dynamic properties of quasiperiodic magnetic multilayers. We considered identical ferromagnetic layers separated by non-magnetic spacers with two different thicknesses chosen based on the Fibonacci sequence. Using parameters for Fe/Cr, the minimum energy was determined and the equilibrium magnetization directions found were used to calculate magnetoresistance curves. Regarding dynamic behavior, ferromagnetic resonance (FMR) curves were calculated using an approximation known from the literature. Our numerical results illustrate the effects of quasiperiodicity on the static and dynamic properties of these structures. (C) 2013 American Institute of Physics. C1 [Machado, L. D.; Bezerra, C. G.; Correa, M. A.; Chesman, C.] Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, BR-59072970 Natal, RN, Brazil. [Machado, L. D.] Univ Estadual Campinas, Dept Fis Aplicada, BR-13083459 Campinas, SP, Brazil. [Bezerra, C. G.] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland. [Chesman, C.; Pearson, J. E.; Hoffmann, A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Bezerra, CG (reprint author), Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, BR-59072970 Natal, RN, Brazil. EM cbezerra@dfte.ufrn.br RI Correa, Marcio/E-1510-2013; Bezerra, Claudionor/O-2696-2014; Hoffmann, Axel/A-8152-2009; Inst. of Physics, Gleb Wataghin/A-9780-2017; Machado, Leonardo/E-2081-2017 OI Correa, Marcio/0000-0002-8904-4151; Bezerra, Claudionor/0000-0001-9660-2142; Hoffmann, Axel/0000-0002-1808-2767; NR 18 TC 2 Z9 2 U1 1 U2 11 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17C102 DI 10.1063/1.4794190 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800150 ER PT J AU Mahan, AH Dabney, MS Ginley, DS AF Mahan, A. H. Dabney, M. S. Ginley, D. S. TI Nucleation rate reduction through stress relief of thermally annealed hydrogenated amorphous silicon films SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID A-SI; RAMAN-SPECTROSCOPY; CRYSTALLIZATION; DEPOSITION AB The effect of film stress on crystallite nucleation is investigated in 0.11 mu m thick, thermally annealed hydrogenated amorphous silicon films. Using a recently developed optical method, the crystallite density is measured as the films are isochronally annealed at 600 degrees C, which enables the determination of the crystallite nucleation rate. This rate is significantly suppressed around scratches, cleaved film edges, and laser ablated areas, extending laterally as much as 100-150 mu m from these regions where the film connectivity is disrupted. mu-Raman measurements of the transverse optical mode of Si demonstrate an accompanying reduction in tensile stress in the regions where nucleation is suppressed. The first measurements of nucleation rate in stress and in stress relieved areas in the same film are presented. (C) 2013 AIP Publishing LLC. C1 [Mahan, A. H.; Dabney, M. S.; Ginley, D. S.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Mahan, AH (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. NR 21 TC 0 Z9 0 U1 1 U2 12 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 173509 DI 10.1063/1.4803686 PG 5 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800340 ER PT J AU Mudryk, Y Pecharsky, VK Gschneidner, KA AF Mudryk, Y. Pecharsky, V. K. Gschneidner, K. A., Jr. TI Unusual magnetic frustration in Lu-doped Gd5Ge4 SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID RARE-EARTH; GD-5(SI1.8GE2.2); TRANSITION AB Magnetic properties of the (Gd0.975Lu0.025)(5)Ge-4 alloy have been measured and compared with the parent Gd5Ge4 compound. Lu doping weakens the ferromagnetic interactions in Gd5Ge4 and this effect is much stronger than what may be expected from a simple dilution effect. An unusual magnetic frustration, likely induced by the kinetic arrest of the O(II) antiferromagnetic-O(I) ferromagnetic magnetostructural transformation as reported in the parent Gd5Ge4, has been observed. (C) 2013 American Institute of Physics. C1 [Mudryk, Y.; Pecharsky, V. K.; Gschneidner, K. A., Jr.] Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA. [Pecharsky, V. K.; Gschneidner, K. A., Jr.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. RP Mudryk, Y (reprint author), Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA. EM slavkomk@ameslab.gov NR 23 TC 4 Z9 4 U1 3 U2 12 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E104 DI 10.1063/1.4793600 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800266 ER PT J AU Nlebedim, IC Hadimani, RL Prozorov, R Jiles, DC AF Nlebedim, I. C. Hadimani, R. L. Prozorov, R. Jiles, D. C. TI Structural, magnetic, and magnetoelastic properties of magnesium substituted cobalt ferrite SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID INVERSION DEGREE; COALXFE2-XO4; DEPENDENCE AB The effects of substituting Mg on the structural, magnetic, and magnetostrictive properties of cobalt ferrite have been investigated. Comparable values of lattice parameter were obtained for the Mg-substituted samples. Saturation magnetization continuously decreased with increase in Mg concentration. Peak-to-peak magnetostriction amplitude and strain sensitivity had a similar dependence on Mg concentration. (C) 2013 American Institute of Physics. C1 [Nlebedim, I. C.; Hadimani, R. L.; Prozorov, R.; Jiles, D. C.] US DOE, Ames Lab, Ames, IA 50011 USA. [Nlebedim, I. C.; Hadimani, R. L.; Jiles, D. C.] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA. [Prozorov, R.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Nlebedim, IC (reprint author), US DOE, Ames Lab, Ames, IA 50011 USA. EM nlebedim@iastate.edu NR 9 TC 9 Z9 9 U1 0 U2 15 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17A928 DI 10.1063/1.4798822 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800073 ER PT J AU Quinn, K Ryan, DH Canfield, PC Bud'ko, SL Cadogan, JM AF Quinn, Katherine Ryan, D. H. Canfield, P. C. Bud'ko, S. L. Cadogan, J. M. TI A search for field-induced ordering in the optimally doped Ba(Fe, Co)(2)As-2 superconductor SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc AB A Fe-57 Mossbauer search for field-induced magnetic order in optimally doped Ba(Fe1-xCox)(2)As-2 in fields of up to 6 T showed no changes that could be attributed to field-induced order. We also observed no difference between the normal (30 K) and superconducting states (5 K). Any field-induced order is certainly less than 1% of the order present in the parent BaFe2As2. (C) 2013 American Institute of Physics. C1 [Quinn, Katherine; Ryan, D. H.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Quinn, Katherine; Ryan, D. H.] McGill Univ, Ctr Phys Mat, Montreal, PQ H3A 2T8, Canada. [Canfield, P. C.; Bud'ko, S. L.] Iowa State Univ, Ames Lab, Ames, IA 50010 USA. [Canfield, P. C.; Bud'ko, S. L.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50010 USA. [Cadogan, J. M.] UNSW Canberra, Sch Phys Environm & Math Sci, Canberra, ACT 2610, Australia. RP Ryan, DH (reprint author), McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada. EM dhryan@physics.mcgill.ca RI Canfield, Paul/H-2698-2014 NR 12 TC 0 Z9 0 U1 0 U2 16 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E127 DI 10.1063/1.4795421 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800289 ER PT J AU Schulte, KL Wood, AW Reedy, RC Ptak, AJ Meyer, NT Babcock, SE Kuech, TF AF Schulte, K. L. Wood, A. W. Reedy, R. C. Ptak, A. J. Meyer, N. T. Babcock, S. E. Kuech, T. F. TI Heteroepitaxy of GaAs on (001) double right arrow 6 degrees Ge substrates at high growth rates by hydride vapor phase epitaxy SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID MOLECULAR-BEAM EPITAXY; III-V COMPOUNDS; GALLIUM-ARSENIDE; SOLAR-CELLS; ANTIPHASE BOUNDARIES; SI DIFFUSION; GERMANIUM; DEPOSITION; HETEROSTRUCTURES; TEMPERATURE AB The growth of GaAs on (001) double right arrow 6 degrees Ge substrates by hydride vapor phase epitaxy has been investigated. The effects of varying deposition temperature and gas phase supersaturation on growth rate and material quality as determined by atomic force microscopy measured surface roughness and x-ray diffraction were established. GaAs growth rates up to 44 mu m/hr were achieved. The deposition temperature has a strong effect on growth rate under the investigated range of growth conditions indicating that growth is typically limited by surface kinetic processes. An apparent activation energy of 35.1 +/- 2.0 kcal/mol was determined for growth on these Ge substrates, agreeing well with past kinetic data for GaAs growth on GaAs substrates. The deposition temperature also had a significant effect on both root mean square surface roughness and x-ray full width at half maximum, with minima of 0.92 nm and 26 arcsec occurring for samples grown at temperatures of 725 degrees C and 750 degrees C, respectively. These values are comparable to or better than values measured for GaAs on Ge layers grown by metalorganic vapor phase epitaxy. The use of a thin Si3N4 coating on the Ge substrate backside mitigated the observed Ge gas phase autodoping effect. With back surface passivation, GaAs background doping levels within the GaAs epilayer of n = 1.2 x 10(16) cm(-3) were achieved 2.3 mu m from the heterointerface. The heterointerfaces of the samples grown at 725 degrees C and 775 degrees C were imaged by transmission electron microscopy. Anti-phase domain boundaries (APBs) were observed near the heterointerface of the 775 degrees C sample. These APBs self-annihilated after roughly 100 nm of epilayer thickness. The 725 degrees C sample exhibited no APBs in the vicinity of the interface or elsewhere in the film, indicating a more optimal growth temperature. Ge diffusion through the GaAs/Ge interface was profiled by secondary ion mass spectrometry and multiple regions of diffusion behavior were observed. In the region of high Ge concentration ([Ge]>5 x 10(19) cm(-3)) closest to the heterointerface, the concentration vs. position data fit a vacancy-assisted diffusion mechanism. The data between 0.05 and 0.20 mu m from the heterointerface were fit to a concentration independent, semi-infinite diffusion model with a constant diffusion coefficient. These models indicate that complex mechanisms control diffusion during growth at these temperatures. (C) 2013 AIP Publishing LLC. C1 [Schulte, K. L.; Kuech, T. F.] Univ Wisconsin, Dept Chem & Biol Engn, Madison, WI 53706 USA. [Wood, A. W.; Meyer, N. T.; Babcock, S. E.] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA. [Reedy, R. C.; Ptak, A. J.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Schulte, KL (reprint author), Univ Wisconsin, Dept Chem & Biol Engn, Madison, WI 53706 USA. EM kschulte2@wisc.edu NR 60 TC 5 Z9 5 U1 0 U2 42 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 174903 DI 10.1063/1.4803037 PG 9 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800395 ER PT J AU Wang, CL Zou, JD Liu, J Mudryk, Y Gschneidner, KA Long, Y Smetana, V Miller, GJ Pecharsky, VK AF Wang, C. L. Zou, J. D. Liu, J. Mudryk, Y. Gschneidner, K. A., Jr. Long, Y. Smetana, V. Miller, G. J. Pecharsky, V. K. TI Crystal structure, magnetic properties, and the magnetocaloric effect of Gd5Rh4 and GdRh SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID TRANSITION; GD-5(SI1.8GE2.2); GD-5(SI2GE2); FIELD; HEAT AB The crystal structures of Gd5Rh4 and GdRh have been studied by powder and single crystal x-ray diffraction. The results show that Gd5Rh4 is isotypic with Pu5Rh4 and the bond length of the short Rh-Rh dimer is 2.943(4) angstrom. According to heat capacity measurements in zero magnetic field, the magnetic ordering temperature of Gd5Rh4 is 13 K, in agreement with magnetization measurements. Both the heat capacity peak shape and the positive slope of the Arrott plots at Curie temperature (T-C) indicate the second-order nature of the magnetic transition. The temperature dependence of magnetization of Gd5Rh4 measured in 1 kOe applied field indicates noncollinear magnetic ordering that may change into nearly collinear ferromagnetic ordering by increasing the magnetic field. GdRh is ferromagnetic below T-C = 22 K. Moderate magnetocaloric effects and relatively high refrigerant capacities are observed in Gd5Rh4 and GdRh. (C) 2013 American Institute of Physics. C1 [Wang, C. L.; Zou, J. D.; Liu, J.; Mudryk, Y.; Gschneidner, K. A., Jr.; Smetana, V.; Miller, G. J.; Pecharsky, V. K.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Wang, C. L.; Long, Y.] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China. [Liu, J.; Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Smetana, V.; Miller, G. J.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Wang, CL (reprint author), 30 Xueyuan Rd, Beijing 100083, Peoples R China. EM chaolunwang@gmail.com RI Zou, Junding/I-8180-2012; Smetana, Volodymyr/C-1340-2015 NR 18 TC 2 Z9 2 U1 2 U2 19 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17A904 DI 10.1063/1.4793775 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800049 ER PT J AU Xu, SY Habib, AH Prasitthipayong, A McHenry, ME AF Xu, Siyang Habib, Ashfaque H. Prasitthipayong, Anya McHenry, Michael E. TI Effects of FeCo magnetic nanoparticles on microstructure of Sn-Ag-Cu alloys SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID LEAD-FREE; SOLDER ALLOYS; SOLIDIFICATION; NANOCRYSTALS; ADDITIONS AB Sn-Ag-Cu (SAC) alloys have been regarded as the most promising candidates for lead-free solders in the electronic packaging industry. We prepared SAC solder-FeCo magnetic nanoparticles (MNPs) composite paste with different MNP concentration and used AC magnetic fields localized heating to cause their reflow. Differential scanning calorimetry results show a reduced undercooling of the composite paste with the addition of MNPs. Transmission electron microscope prove that the FeCo MNPs are distributed in Sn matrix of the reflowed solder composites. Optical micrographs show a decrease in the amount of primary Ag3Sn and beta-Sn dendrites, and an increase in the amount of eutectic microconstituents with increasing MNPs. The addition of FeCo MNPs is considered to promote the solidification of beta-Sn by providing more heterogeneous nucleation sites at a relatively low undercooling, which results in the microstructural refinement in the as-prepared solder joints. (C) 2013 American Institute of Physics. C1 [Xu, Siyang; Prasitthipayong, Anya; McHenry, Michael E.] Carnegie Mellon Univ, Mat Sci & Engn Dept, Pittsburgh, PA 15213 USA. [Habib, Ashfaque H.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Xu, SY (reprint author), Carnegie Mellon Univ, Mat Sci & Engn Dept, Pittsburgh, PA 15213 USA. EM siyangx@andrew.cmu.edu NR 23 TC 3 Z9 3 U1 0 U2 21 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR UNSP 17A301 DI 10.1063/1.4793502 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800002 ER PT J AU Xu, SY Pickel, AD Prasitthipayong, A Habib, AH McHenry, ME AF Xu, Siyang Pickel, Andrea D. Prasitthipayong, Anya Habib, Ashfaque H. McHenry, Michael E. TI Modeling of localized reflow in solder/magnetic nanocomposites for area-array packaging SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc AB We have modeled the reflow process of FeCo magnetic nanoparticle (MNP)-based solder composites with eddy current power loss of substrate and magnetic power losses of solder bumps. For an area array package without MNPs when subjected to 300 kHz ac magnetic field, the eddy current power loss can result in excessive temperatures that can cause substrate damage. Temperature profiles with different MNP concentration were simulated and the results showed localized reflow of solders to enable low-temperature assembly. The temperatures at different times and positions in solder composites were analyzed. We also modeled thermal profiles for solder composites with 0.2 wt. % MNP in 1 MHz and 3 MHz magnetic field. Such high field frequency generated larger power losses in MNPs and is shown to increase the heating efficiency. (C) 2013 American Institute of Physics. C1 [Xu, Siyang; Pickel, Andrea D.; Prasitthipayong, Anya; McHenry, Michael E.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA. [Habib, Ashfaque H.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Xu, SY (reprint author), Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA. EM siyangx@andrew.cmu.edu NR 21 TC 4 Z9 4 U1 0 U2 17 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17A305 DI 10.1063/1.4793516 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800006 ER PT J AU Yin, JQ Eisenbach, M Nicholson, DM Rusanu, A AF Yin, Junqi Eisenbach, Markus Nicholson, Don M. Rusanu, Aurelian TI Effect of longitudinal degree of freedom of magnetic moment in body-centered-cubic iron SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID PHONON INTERACTIONS; FERROMAGNET AB First principle calculations are performed to study the longitudinal degree of freedom of the magnetic moment in BCC iron. A model of the Heisenberg type of exchange interaction is proposed, which couples the spin and lattice degrees of freedom. Monte Carlo simulations are then applied to study the effect of thermal displacements on the magnetic phase transition in BCC Iron. The reason for the surprising success of fixed lattice Heisenberg models is explained. (c) 2013 American Institute of Physics. C1 [Yin, Junqi; Eisenbach, Markus; Nicholson, Don M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Rusanu, Aurelian] Univ Tennessee, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA. RP Yin, JQ (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM yinj@ornl.gov RI Yin, Junqi/F-6920-2014; OI Yin, Junqi/0000-0003-3843-5520; Eisenbach, Markus/0000-0001-8805-8327 NR 15 TC 1 Z9 1 U1 0 U2 13 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E112 DI 10.1063/1.4794136 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800274 ER PT J AU Zhang, W Bowden, ME Krishnan, KM AF Zhang, Wei Bowden, Mark E. Krishnan, Kannan M. TI Nanoimprint-lithography patterned epitaxial Fe nanowire arrays with misaligned magnetocrystalline and shape anisotropies SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID EXCHANGE BIAS; FILMS; NANOSTRUCTURES AB We fabricated large area (>1 x 1 cm(2)), epitaxial Fe nanowire arrays on MgO(001) substrates by nanoimprint lithography with a direct metallization of epitaxial materials through a metallic mask, which avoided the disadvantageous metal-etching process in conventional methods. The magnetization reversals, as revealed by magneto-optic Kerr effect, showed competing effects between Fe cubic magnetocrystalline anisotropy and lithographically induced uniaxial shape anisotropy. Unlike the weakly induced uniaxial anisotropy observed in continuous films, both the magnitude and direction of the uniaxial shape anisotropy can be easily modulated in the nanowires. Complex magnetization reversal processes including two-step and three-step loops were observed when magnetizing the samples along different Fe cubic easy axes, respectively. These modified magnetization reversal processes were explained by the nucleation and propagation of the domain walls along the non-superimposed easy axes of the competing magnetocrystalline and shape anisotropies. (C) 2013 American Institute of Physics. C1 [Zhang, Wei; Krishnan, Kannan M.] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA. [Bowden, Mark E.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Krishnan, KM (reprint author), Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA. EM kannanmk@uw.edu RI Zhang, Wei/G-1523-2012 OI Zhang, Wei/0000-0002-5878-3090 NR 26 TC 8 Z9 8 U1 0 U2 22 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17B502 DI 10.1063/1.4794358 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800109 ER PT J AU Zhang, XW Ji, NA Lauter, V Ambaye, H Wang, JP AF Zhang, Xiaowei Ji, Nian Lauter, Valeria Ambaye, Hailemariam Wang, Jian-Ping TI Strain effect of multilayer FeN structure on GaAs substrate SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 12th Joint MMM-Intermag Conference CY JAN 14-18, 2013 CL Chicago, IL SP AIP Publishing, IEEE Magnet Soc ID MAGNETIC-MOMENT; FILMS; FE16N2 AB Overly doped FeN multilayer structure on GaAs substrate was fabricated. After the post-annealing process, FeN martensite in each Fe/FeN layer formed partially chemically ordered Fe16N2, which was observed by X-ray diffraction. To detect the saturation magnetization (Ms) depth profile, polarized neutron reflectivity was conducted. Fe/FeN layer showed a significant improvement of Ms for each layer compared to Ms of Fe. More importantly, different FeN layers showed different Ms according to the physical distance to the substrate GaAs. The most enhanced Ms (exceeding the limit of Fe65Co35 Ms) observed at the bottom part of the film, consistent with previous reports, should be attributed to the lattice strain by GaAs substrate. In order to detect the lattice constant, In-plane X-ray Diffraction was done and a large in-plane lattice constant was determined. (C) 2013 AIP Publishing LLC. C1 [Zhang, Xiaowei; Ji, Nian; Wang, Jian-Ping] Univ Minnesota, Ctr Micromagnet & Informat Technol MINT, Minneapolis, MN 55455 USA. [Zhang, Xiaowei; Ji, Nian; Wang, Jian-Ping] Univ Minnesota, Elect & Comp Engn Dept, Minneapolis, MN 55455 USA. [Zhang, Xiaowei; Ji, Nian; Wang, Jian-Ping] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA. [Lauter, Valeria; Ambaye, Hailemariam] Oak Ridge Natl Lab, Neutron Sci Scattering Div, Oak Ridge, TN 37831 USA. RP Zhang, XW (reprint author), Univ Minnesota, Ctr Micromagnet & Informat Technol MINT, Minneapolis, MN 55455 USA. EM jpwang@umn.edu RI Ambaye, Haile/D-1503-2016 OI Ambaye, Haile/0000-0002-8122-9952 NR 12 TC 4 Z9 4 U1 0 U2 18 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAY 7 PY 2013 VL 113 IS 17 AR 17E149 DI 10.1063/1.4800086 PG 3 WC Physics, Applied SC Physics GA 149BK UT WOS:000319292800311 ER PT J AU Rodrigues, JA Ruan, R Nishimura, T Sharma, MK Sharma, R Ronald, PC Fischer, RL Zilberman, D AF Rodrigues, Jessica A. Ruan, Randy Nishimura, Toshiro Sharma, Manoj K. Sharma, Rita Ronald, Pamela C. Fischer, Robert L. Zilberman, Daniel TI Imprinted expression of genes and small RNA is associated with localized hypomethylation of the maternal genome in rice endosperm SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE DNA methylation; chromatin; RNA interference; gene imprinting ID EUKARYOTIC DNA METHYLATION; TRANSPOSABLE ELEMENTS; ARABIDOPSIS ENDOSPERM; MAIZE ENDOSPERM; ORYZA-SATIVA; DEMETHYLATION; DEMETER; GLYCOSYLASES; SEQUENCE; ANIMALS AB Arabidopsis thaliana endosperm, a transient tissue that nourishes the embryo, exhibits extensive localized DNA demethylation on maternally inherited chromosomes. Demethylation mediates parent-of-origin-specific (imprinted) gene expression but is apparently unnecessary for the extensive accumulation of maternally biased small RNA (sRNA) molecules detected in seeds. Endosperm DNA in the distantly related monocots rice and maize is likewise locally hypomethylated, but whether this hypomethylation is generally parent-of-origin specific is unknown. Imprinted expression of sRNA also remains uninvestigated in monocot seeds. Here, we report high-coverage sequencing of the Kitaake rice cultivar that enabled us to show that localized hypomethylation in rice endosperm occurs solely on the maternal genome, preferring regions of high DNA accessibility. Maternally expressed imprinted genes are enriched for hypomethylation at putative promoter regions and transcriptional termini and paternally expressed genes at promoters and gene bodies, mirroring our recent results in A. thaliana. However, unlike in A. thaliana, rice endosperm sRNA populations are dominated by specific strong sRNA-producing loci, and imprinted 24-nt sRNAs are expressed from both parental genomes and correlate with hypomethylation. Overlaps between imprinted sRNA loci and imprinted genes expressed from opposite alleles suggest that sRNAs may regulate genomic imprinting. Whereas sRNAs in seedling tissues primarily originate from small class II (cut-and-paste) transposable elements, those in endosperm are more uniformly derived, including sequences from other transposon classes, as well as genic and intergenic regions. Our data indicate that the endosperm exhibits a unique pattern of sRNA expression and suggest that localized hypomethylation of maternal endosperm DNA is conserved in flowering plants. C1 [Rodrigues, Jessica A.; Nishimura, Toshiro; Fischer, Robert L.; Zilberman, Daniel] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA. [Ruan, Randy; Sharma, Manoj K.; Sharma, Rita; Ronald, Pamela C.] Univ Calif Davis, Dept Plant Pathol, Davis, CA 95616 USA. [Ruan, Randy; Sharma, Manoj K.; Sharma, Rita; Ronald, Pamela C.] Joint BioEnergy Inst, Emeryville, CA 94608 USA. RP Fischer, RL (reprint author), Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA. EM rfischer@berkeley.edu; danielz@berkeley.edu OI Zilberman, Daniel/0000-0002-0123-8649 FU National Science Foundation [IOS-1025890]; National Institutes of Health Grant [GM69415]; Arnold and Mabel Beckman Foundation; Fulbright scholarship; Office of Science of the US Department of Energy (DOE) [DE-AC02-05CH1123]; US DOE Office of Biological and Environmental Research through Contract [DE-AC02-05CH11231] FX We thank W. Schackwitz, M. Joel, and the Joint Genome Institute (JGI) sequencing team for generating Kitaake genome sequence and initial analysis; L. Bartley and E. Marvinney for rice genomic DNA preparation; J. Huff and A. Zemach for suggestions on data analysis and interpretation; A. Zemach, Y. Kim, and T.-F. Hsieh for training in experimental techniques; M. Couvillon for the sRNA sequencing protocol; J. Zhai for pointing out that an imprinted rice sRNA locus overlaps a DME homolog; and Y. Wu and J. Jiang for DNase I hypersensitivity data. This work was partially funded by National Science Foundation Grant IOS-1025890 (to R.L.F. and D.Z.), National Institutes of Health Grant GM69415 (to R.L.F.), a Young Investigator grant from the Arnold and Mabel Beckman Foundation (to D.Z.), and a Fulbright scholarship (to J.A.R.). The JGI is supported by the Office of Science of the US Department of Energy (DOE) under Contract DE-AC02-05CH1123. This work was also supported by the US DOE Office of Biological and Environmental Research through Contract DE-AC02-05CH11231 with Lawrence Berkeley National Laboratory. NR 32 TC 33 Z9 34 U1 1 U2 45 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD MAY 7 PY 2013 VL 110 IS 19 BP 7934 EP 7939 DI 10.1073/pnas.1306164110 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 149NP UT WOS:000319327700087 PM 23613580 ER PT J AU Kim, Y Ye, Z Joachimiak, G Videau, P Young, J Hurd, K Callahan, SM Gornicki, P Zhao, JD Haselkorn, R Joachimiak, A AF Kim, Youngchang Ye, Zi Joachimiak, Grazyna Videau, Patrick Young, Jasmine Hurd, Kathryn Callahan, Sean M. Gornicki, Piotr Zhao, Jindong Haselkorn, Robert Joachimiak, Andrzej TI Structures of complexes comprised of Fischerella transcription factor HetR with Anabaena DNA targets SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE heterocyst differentiation; mutagenesis; X-ray crystallography ID STRAIN PCC 7120; HETEROCYST PATTERN-FORMATION; REPRESSOR-OPERATOR COMPLEX; CRYSTAL-STRUCTURE; AMINO-ACIDS; SP PCC-7120; RECOGNITION; PROTEIN; DIFFERENTIATION; BINDING AB HetR is an essential regulator of heterocyst development in cyanobacteria. Many mutations in HetR render Anabaena incapable of nitrogen fixation. The protein binds to a DNA palindrome upstream of hetP and other genes. We have determined the crystal structures of HetR complexed with palindromic DNA targets, 21, 23, and 29 bp at 2.50-, 3.00-, and 3.25-angstrom resolution, respectively. The highest-resolution structure shows fine details of specific protein-DNA interactions. The lower-resolution structures with longer DNA duplexes have similar interaction patterns and show how the flap domains interact with DNA in a sequence nonspecific fashion. Fifteen of 15 protein-DNA contacts predicted on the basis of the structure were confirmed by single amino acid mutations that abolished binding in vitro and complementation in vivo. A striking feature of the structure is the association of glutamate 71 from each subunit of the HetR dimer with three successive cytosines in each arm of the palindromic target, a feature that is conserved among all known heterocyst-forming cyanobacteria sequenced to date. C1 [Kim, Youngchang; Joachimiak, Grazyna; Joachimiak, Andrzej] Argonne Natl Lab, Midwest Ctr Struct Genom, Argonne, IL 60439 USA. [Kim, Youngchang; Joachimiak, Grazyna; Joachimiak, Andrzej] Argonne Natl Lab, Struct Biol Ctr, Argonne, IL 60439 USA. [Ye, Zi; Zhao, Jindong] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China. [Videau, Patrick; Young, Jasmine; Hurd, Kathryn; Callahan, Sean M.] Univ Hawaii, Dept Microbiol, Honolulu, HI 96822 USA. [Gornicki, Piotr; Haselkorn, Robert] Univ Chicago, Dept Mol Genet & Cell Biol, Chicago, IL 60637 USA. [Joachimiak, Andrzej] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA. RP Haselkorn, R (reprint author), Univ Chicago, Dept Mol Genet & Cell Biol, 920 E 58Th St, Chicago, IL 60637 USA. EM rh01@uchicago.edu; andrzejj@anl.gov FU National Institutes of Health [GM094585]; National Science Foundation [MCB-1121346]; Ellison Medical Foundation; US Department of Energy, Office of Biological and Environmental Research [DE-AC02-06CH11357]; US Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX We thank all members of the Structural Biology Center at Argonne National Laboratory for their help in conducting these experiments. Important DNA sequences were generously provided prior to publication by Tal Dagan and Robin Koch (University of Dusseldorf). This work was supported by National Institutes of Health Grant GM094585 (to A.J.), National Science Foundation Grant MCB-1121346 (to S. M. C.), the Ellison Medical Foundation (R. H.), and US Department of Energy, Office of Biological and Environmental Research, Contract DE-AC02-06CH11357 (to A.J.). The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a US Department of Energy Office of Science laboratory, is operated under Contract DE-AC02-06CH11357. NR 44 TC 12 Z9 12 U1 2 U2 16 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD MAY 7 PY 2013 VL 110 IS 19 BP E1716 EP E1723 DI 10.1073/pnas.1305971110 PG 8 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 149NP UT WOS:000319327700004 PM 23610410 ER PT J AU Shi, W Luebke, DR AF Shi, Wei Luebke, David R. TI Enhanced Gas Absorption in the Ionic Liquid 1-n-Hexyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)amide ([hmim][Tf2N]) Confined in Silica Slit Pores: A Molecular Simulation Study SO LANGMUIR LA English DT Article ID MONTE-CARLO; CARBON NANOTUBES; FREE-ENERGY; MIXTURES; DYNAMICS; WATER; DIFFUSION; ENSEMBLE; DENSITY; CONDUCTIVITY AB Two-dimensional NPxyT and isostress-osmotic (N2PxyTf1) Monte Carlo simulations were used to compute the density and gas absorption properties of the ionic liquid (IL) 1-n-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([hmim][Tf2N]) confined in silica slit pores (25-45 angstrom). Self-diffusivity values for both gas and IL were calculated from NVE molecular dynamics simulations using both smooth and atomistic potential models for silica. The simulations showed that the molar volume of [hmim][Tf2N] confined in 25-45-angstrom silica slit pores is 12-31% larger than that of the bulk IL at 313-573 K and 1 bar. The amounts of CO2, H-2, and N-2 absorbed in the confined IL are 1.1-3 times larger than those in the bulk IL because of the larger molar volume of the confined IL compared to the bulk IL. The CO2, N-2, and H-2 molecules are generally absorbed close to the silica wall where the IL density is very low. This arrangement causes the self-diffusivities of these gases in the confined IL to be 2-8 times larger than those in the bulk IL at 298-573 K. The solubilities of water in the confined and bulk ILs are similar, which is likely due to strong water interactions with [hmim][Tf2N] through hydrogen bonding, so that the molar volume of the confined IL plays a less important role in determining the H2O solubility. Water molecules are largely absorbed in the IL-rich region rather than close to the silica wall. The self-diffusivities of water correlate with those of the confined IL. The confined IL exhibits self-diffusivities larger than those of the bulk IL at lower temperatures, but smaller than those of the bulk IL at higher temperatures. The findings from our simulations are consistent with available experimental data for similar confined IL systems. C1 [Shi, Wei; Luebke, David R.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Shi, Wei] URS Corp, South Pk, PA 15129 USA. [Shi, Wei] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA. RP Shi, W (reprint author), US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM shiw@netl.doe.gov FU National Energy Technology Laboratory under RES [DE-FE0004000] FX This work was performed in support of the National Energy Technology Laboratory's ongoing research in computational chemistry under RES Contract DE-FE0004000. We also thank It It Anderson for his help in preparing this manuscript. NR 39 TC 11 Z9 11 U1 3 U2 89 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0743-7463 J9 LANGMUIR JI Langmuir PD MAY 7 PY 2013 VL 29 IS 18 BP 5563 EP 5572 DI 10.1021/la400226g PG 10 WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 141WC UT WOS:000318756200023 PM 23537057 ER PT J AU Kong, LG Mume, E Triani, G Smith, SV AF Kong, Linggen Mume, Eskender Triani, Gerry Smith, Suzanne V. TI Optimizing Radiolabeling Amine-Functionalized Silica Nanoparticles Using SarAr-NCS for Applications in Imaging and Radiotherapy SO LANGMUIR LA English DT Article ID DRUG-DELIVERY; BIOMEDICAL APPLICATIONS; PHOTODYNAMIC THERAPY; GENE DELIVERY; CANCER; CARRIERS; SYSTEMS; SIZE; NANOMEDICINE; THERAPEUTICS AB Silica nanoparticles functionalized with amine groups and in the size range of approximately 60-94 nm were produced by combining sol gel processing and emulsion technology. Hexa-aza cage ligand SarAr-NCS was conjugated to the silica nanoparticles and subsequently radiolabeled with a solution of Co-57(2+)-doped carrier Co2+. The number of Co2+ ions bound to the silica particles at pH 7 was used to determine the average number of available SarAr-NCS ligands conjugated to a silica particle. For organically modified silica particles of 94.0 and 59.5 nm diameter, the maximum number of metal binding sites was determined to be 11700 and 3270 sites per particle, respectively. For silica particles (63.5 nm peak diameter) produced using an water-in-oil emulsion, the calculated average was 4480 on the particle surface. The number of SarAr-NCS conjugated on the particles was easily controlled, potentially providing for a range of products for applications in the risk assessment of particles and theranostic imaging or radiotherapy when radiolabeled with a suitable radioisotope such as Cu-64 or Cu-67. C1 [Kong, Linggen; Triani, Gerry] ANSTO, Inst Mat Engn, Kirrawee Dc, NSW 2232, Australia. [Mume, Eskender; Smith, Suzanne V.] ANSTO, LifeSci, Kirrawee Dc, NSW 2232, Australia. [Mume, Eskender; Smith, Suzanne V.] Australian Natl Univ, Res Sch Phys & Engn, Ctr Excellence Antimatter Matter Studies CAMS, Canberra, ACT 0200, Australia. [Smith, Suzanne V.] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA. RP Kong, LG (reprint author), ANSTO, Inst Mat Engn, Locked Bag 2001, Kirrawee Dc, NSW 2232, Australia. EM lnk@ansto.gov.au; suzanne@bnl.gov NR 44 TC 8 Z9 8 U1 0 U2 34 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0743-7463 J9 LANGMUIR JI Langmuir PD MAY 7 PY 2013 VL 29 IS 18 BP 5609 EP 5616 DI 10.1021/la400630e PG 8 WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 141WC UT WOS:000318756200028 PM 23581487 ER PT J AU Cardall, CY Endeve, E Mezzacappa, A AF Cardall, Christian Y. Endeve, Eirik Mezzacappa, Anthony TI Conservative 3+1 general relativistic variable Eddington tensor radiation transport equations SO PHYSICAL REVIEW D LA English DT Article ID CORE-COLLAPSE SUPERNOVAE; COLLECTIVE NEUTRINO OSCILLATIONS; COMOVING-FRAME EQUATION; EXPLOSION MECHANISM; CODE TESTS; HYDRODYNAMICS; SIMULATIONS; TIME; FORMULATION; DIMENSIONS AB We present conservative 3 + 1 general relativistic variable Eddington tensor radiation transport equations, including greater elaboration of the momentum space divergence (that is, the energy derivative term) than in previous work. These equations are intended for use in simulations involving numerical relativity, particularly in the absence of spherical symmetry. The independent variables are the lab frame coordinate basis spacetime position coordinates and the particle energy measured in the comoving frame. With an eye towards astrophysical applications-such as core-collapse supernovae and compact object mergers-in which the fluid includes nuclei and/or nuclear matter at finite temperature, and in which the transported particles are neutrinos, we pay special attention to the consistency of four-momentum and lepton number exchange between neutrinos and the fluid, showing the term-by-term cancellations that must occur for this consistency to be achieved. C1 [Cardall, Christian Y.; Mezzacappa, Anthony] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Cardall, Christian Y.; Mezzacappa, Anthony] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Endeve, Eirik; Mezzacappa, Anthony] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. RP Cardall, CY (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. RI Mezzacappa, Anthony/B-3163-2017; OI Mezzacappa, Anthony/0000-0001-9816-9741; Endeve, Eirik/0000-0003-1251-9507 FU Office of Advanced Scientific Computing Research, U.S. Department of Energy; Office of Nuclear Physics, U.S. Department of Energy FX We thank Evan O'Connor for useful discussions and corrections. This research was supported by the Office of Advanced Scientific Computing Research and the Office of Nuclear Physics, U.S. Department of Energy. NR 65 TC 13 Z9 13 U1 0 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 7 PY 2013 VL 87 IS 10 AR 103004 DI 10.1103/PhysRevD.87.103004 PG 25 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 140LR UT WOS:000318656100004 ER PT J AU Hau-Riege, SP AF Hau-Riege, Stefan P. TI Nonequilibrium electron dynamics in materials driven by high-intensity x-ray pulses SO PHYSICAL REVIEW E LA English DT Article ID PLASMA; LASER AB We calculated the evolution of the electron system in solid-density matter irradiated by high-intensity x-ray pulses between 2 and 8 keV using molecular dynamics. For pulses shorter than 40 fs, the kinetic energy distribution of the electrons is highly nonthermal during and right after the pulse, and a large fraction of the absorbed x-ray energy resides with the fast photoelectrons which equilibrate on the timescale of the pulse length. The average ionization and electron temperature of the bulk of the electrons are significantly lower than their equilibrium values. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Hau-Riege, SP (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM hauriege1@llnl.gov FU US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. The author would like to acknowledge useful discussions with J. Weisheit, D. Richards, and J. Glosli. Some of the simulations were performed on LLNL's Sequoia BlueGene/Q system. NR 18 TC 13 Z9 13 U1 1 U2 38 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 J9 PHYS REV E JI Phys. Rev. E PD MAY 7 PY 2013 VL 87 IS 5 AR 053102 DI 10.1103/PhysRevE.87.053102 PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 140LW UT WOS:000318656600005 PM 23767638 ER PT J AU Castellan, JP Rosenkranz, S Osborn, R Li, Q Gray, KE Luo, X Welp, U Karapetrov, G Ruff, JPC van Wezel, J AF Castellan, John-Paul Rosenkranz, Stephan Osborn, Ray Li, Qing'an Gray, K. E. Luo, X. Welp, U. Karapetrov, Goran Ruff, J. P. C. van Wezel, Jasper TI Chiral Phase Transition in Charge Ordered 1T-TiSe2 SO PHYSICAL REVIEW LETTERS LA English DT Article ID SINGLE-CRYSTALS; TISE2; STATE AB It was recently discovered that the low-temperature, charge-ordered phase of 1T-TiSe2 has a chiral character. This unexpected chirality in a system described by a scalar order parameter could be explained in a model where the emergence of relative phase shifts between three charge density wave components breaks the inversion symmetry of the lattice. Here, we present experimental evidence for the sequence of phase transitions predicted by that theory, going from disorder to nonchiral and finally to chiral charge order. Employing x-ray diffraction, specific heat, and electrical transport measurements, we find that a novel phase transition occurs similar to 7 K below the main charge ordering transition in TiSe2, in agreement with the predicted hierarchy of charge-ordered phases. C1 [Castellan, John-Paul; Rosenkranz, Stephan; Osborn, Ray; Li, Qing'an; Gray, K. E.; Luo, X.; Welp, U.; Karapetrov, Goran; van Wezel, Jasper] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Karapetrov, Goran] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA. [Ruff, J. P. C.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Ruff, J. P. C.] Cornell Univ, CHESS, Ithaca, NY 14853 USA. [van Wezel, Jasper] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England. RP Castellan, JP (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM Jasper.vanWezel@bristol.ac.uk RI Rosenkranz, Stephan/E-4672-2011; Li, Qingan/L-3778-2013; Karapetrov, Goran/C-2840-2008; van Wezel, Jasper/B-6779-2008 OI Rosenkranz, Stephan/0000-0002-5659-0383; Karapetrov, Goran/0000-0003-1113-0137; van Wezel, Jasper/0000-0002-9378-008X FU U.S. DOE-BES [NE-AC02-06CH11357] FX Work at the Advanced Photon Source and Material Science Division of Argonne National Laboratory was supported by the U.S. DOE-BES under Contract No. NE-AC02-06CH11357. NR 27 TC 16 Z9 16 U1 6 U2 85 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 7 PY 2013 VL 110 IS 19 AR 196404 DI 10.1103/PhysRevLett.110.196404 PG 5 WC Physics, Multidisciplinary SC Physics GA 140MF UT WOS:000318657500007 PM 23705726 ER PT J AU Ekstrom, A Baardsen, G Forssen, C Hagen, G Hjorth-Jensen, M Jansen, GR Machleidt, R Nazarewicz, W Papenbrock, T Sarich, J Wild, SM AF Ekstrom, A. Baardsen, G. Forssen, C. Hagen, G. Hjorth-Jensen, M. Jansen, G. R. Machleidt, R. Nazarewicz, W. Papenbrock, T. Sarich, J. Wild, S. M. TI Optimized Chiral Nucleon-Nucleon Interaction at Next-to-Next-to-Leading Order SO PHYSICAL REVIEW LETTERS LA English DT Article ID EFFECTIVE-FIELD THEORY; SCATTERING DATA; MOMENTUM-SPACE; FORCES; DEUTERON; SYSTEMS; SHIFT AB We optimize the nucleon-nucleon interaction from chiral effective field theory at next-to-next-to-leading order (NNLO). The resulting new chiral force NNLOopt yields chi(2) approximate to 1 per degree of freedom for laboratory energies below approximately 125 MeV. In the A = 3, 4 nucleon systems, the contributions of three-nucleon forces are smaller than for previous parametrizations of chiral interactions. We use NNLOopt to study properties of key nuclei and neutron matter, and we demonstrate that many aspects of nuclear structure can be understood in terms of this nucleon-nucleon interaction, without explicitly invoking three-nucleon forces. C1 [Ekstrom, A.; Baardsen, G.; Hjorth-Jensen, M.] Univ Oslo, Dept Phys, N-0316 Oslo, Norway. [Ekstrom, A.; Baardsen, G.; Hjorth-Jensen, M.] Univ Oslo, Ctr Math Applicat, N-0316 Oslo, Norway. [Ekstrom, A.; Hjorth-Jensen, M.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA. [Forssen, C.] Chalmers, Dept Fundamental Phys, SE-41296 Gothenburg, Sweden. [Hagen, G.; Jansen, G. R.; Nazarewicz, W.; Papenbrock, T.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Hagen, G.; Jansen, G. R.; Nazarewicz, W.; Papenbrock, T.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Hjorth-Jensen, M.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [Machleidt, R.] Univ Idaho, Dept Phys, Moscow, ID 83844 USA. [Nazarewicz, W.] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland. [Sarich, J.; Wild, S. M.] Argonne Natl Lab, Math & Comp Sci Div, Argonne, IL 60439 USA. RP Ekstrom, A (reprint author), Univ Oslo, Dept Phys, POB 1048, N-0316 Oslo, Norway. RI Forssen, Christian/C-6093-2008; Ekstrom, Andreas/D-3782-2014; Wild, Stefan/P-4907-2016; OI Forssen, Christian/0000-0003-3458-0480; Wild, Stefan/0000-0002-6099-2772; Jansen, Gustav R./0000-0003-3558-0968; Papenbrock, Thomas/0000-0001-8733-2849 FU Research Council of Norway [ISP-Fysikk/216699]; Office of Nuclear Physics, U.S. Department of Energy (Oak Ridge National Laboratory) [DE-FG02-03ER41270, DE-FG02-96ER40963, DE-AC02-06CH11357, DE-SC0008499]; Swedish Research Council [dnr 2007-4078]; European Research Council [ERC-StG-240603]; Office of Science of the Department of Energy [DE-AC05-00OR22725] FX We thank M. P. Kartamyshev, B. D. Carlsson, and H. T. Johansson for discussions and related code development. This work was supported by the Research Council of Norway under contract ISP-Fysikk/216699; by the Office of Nuclear Physics, U.S. Department of Energy (Oak Ridge National Laboratory), under Grants No. DE-FG02-03ER41270 (University of Idaho), No. DE-FG02-96ER40963 (University of Tennessee), No. DE-AC02-06CH11357 (Argonne), and No. DE-SC0008499 (NUCLEI SciDAC collaboration); by the Swedish Research Council (dnr 2007-4078), and by the European Research Council (ERC-StG-240603). Computer time was provided by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program. This research used resources of the Oak Ridge Leadership Computing Facility located in the Oak Ridge National Laboratory, which is supported by the Office of Science of the Department of Energy under Contract No. DE-AC05-00OR22725, and used computational resources of the National Center for Computational Sciences, the National Institute for Computational Sciences, and the Notur project in Norway. NR 48 TC 103 Z9 103 U1 1 U2 21 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 7 PY 2013 VL 110 IS 19 AR 192502 DI 10.1103/PhysRevLett.110.192502 PG 5 WC Physics, Multidisciplinary SC Physics GA 140MF UT WOS:000318657500003 PM 23705702 ER PT J AU Piet, DL Straube, AV Snezhko, A Aranson, IS AF Piet, D. L. Straube, A. V. Snezhko, A. Aranson, I. S. TI Viscosity Control of the Dynamic Self-Assembly in Ferromagnetic Suspensions SO PHYSICAL REVIEW LETTERS LA English DT Article ID FIELDS AB Recent studies of dynamic self-assembly in ferromagnetic colloids suspended in liquid-air or liquid-liquid interfaces revealed a rich variety of dynamic structures ranging from linear snakes to axisymmetric asters, which exhibit novel morphology of the magnetic ordering accompanied by large-scale hydrodynamic flows. Based on controlled experiments and first principles theory, we argue that the transition from snakes to asters is governed by the viscosity of the suspending liquid where less viscous liquids favor snakes and more viscous, asters. By obtaining analytic solutions of the time-averaged Navier-Stokes equations, we gain insight into the role of mean hydrodynamic flows and an overall balance of forces governing the self-assembly. Our results illustrate that the viscosity can be used to control the outcome of the dynamic self-assembly in magnetic colloidal suspensions. C1 [Piet, D. L.; Aranson, I. S.] Northwestern Univ, Dept Engn Sci & Appl Math, Evanston, IL 60208 USA. [Piet, D. L.; Straube, A. V.; Snezhko, A.; Aranson, I. S.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Straube, A. V.] Humboldt Univ, Dept Phys, D-12489 Berlin, Germany. RP Piet, DL (reprint author), Northwestern Univ, Dept Engn Sci & Appl Math, 2145 Sheridan Rd, Evanston, IL 60208 USA. RI Aranson, Igor/I-4060-2013; Straube, Arthur/L-6379-2013 FU U.S. DOE, Office of Basic Energy Sciences, Division of Materials Science and Engineering [DE AC02-06CH11357] FX This research was supported by the U.S. DOE, Office of Basic Energy Sciences, Division of Materials Science and Engineering, under Contract No. DE AC02-06CH11357. A. V. S. thanks Argonne's Materials Theory Institute for support of his visit to Argonne. NR 31 TC 11 Z9 11 U1 2 U2 42 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 7 PY 2013 VL 110 IS 19 AR 198001 DI 10.1103/PhysRevLett.110.198001 PG 5 WC Physics, Multidisciplinary SC Physics GA 140MF UT WOS:000318657500014 PM 23705741 ER PT J AU Han, MG Zhu, YM Wu, LJ Aoki, T Volkov, V Wang, XY Chae, SC Oh, YS Cheong, SW AF Han, Myung-Geun Zhu, Yimei Wu, Lijun Aoki, Toshihiro Volkov, Vyacheslav Wang, Xueyun Chae, Seung Chul Oh, Yoon Seok Cheong, Sang-Wook TI Ferroelectric Switching Dynamics of Topological Vortex Domains in a Hexagonal Manganite SO ADVANCED MATERIALS LA English DT Article DE ferroelectrics; topological defects; domain wall; in situ TEM; domain switching ID COSMOLOGICAL EXPERIMENTS; YMNO3; DEFECTS; TRANSITION; WALLS AB Field-induced switching of ferroelectric domains with a topological vortex configuration is studied by atomic imaging and electrical biasing in an electron microscope, revealing the role of topological defects on the topologically-guided change of domain-wall pairs in a hexagonal manganite. C1 [Han, Myung-Geun; Zhu, Yimei; Wu, Lijun; Volkov, Vyacheslav] Brookhaven Natl Lab, Upton, NY 11973 USA. [Aoki, Toshihiro] JEOL USA Inc, Peabody, MA 01960 USA. [Wang, Xueyun; Chae, Seung Chul; Oh, Yoon Seok; Cheong, Sang-Wook] Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA. [Wang, Xueyun; Chae, Seung Chul; Oh, Yoon Seok; Cheong, Sang-Wook] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. RP Han, MG (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM mghan@bnl.gov; zhu@bnl.gov; aoki@jeol.com RI Oh, Yoon Seok/A-1071-2011; Aoki, Toshihiro/I-4852-2015; Volkov, Vyacheslav/D-9786-2016 OI Oh, Yoon Seok/0000-0001-8233-1898; FU U.S. Department of Energy, Office of Basic Energy Sciences; U.S. Department of Energy's Office of Basic Energy Science, Division of Materials Science and Engineering [DE-AC02-98CH10886]; National Science Foundation [DMR-11004484] FX TEM sample preparation in part was carried out by K. Kisslinger at the Center for Functional Nanomaterials, Brookhaven National Laboratory. Authors acknowledge the use of the ARM 200F of JEOL test facility. We thank Y. Horibe for fruitful discussions and A. Woodhead for careful reading and editing. Research was carried out, in part, at the Center for Functional Nanomaterials, Brookhaven National Laboratory, supported by the U.S. Department of Energy, Office of Basic Energy Sciences. This work is supported by the U.S. Department of Energy's Office of Basic Energy Science, Division of Materials Science and Engineering, under Contract number DE-AC02-98CH10886. The work at Rutgers was supported by National Science Foundation DMR-11004484. NR 32 TC 32 Z9 32 U1 15 U2 187 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 0935-9648 EI 1521-4095 J9 ADV MATER JI Adv. Mater. PD MAY 7 PY 2013 VL 25 IS 17 BP 2415 EP 2421 DI 10.1002/adma.201204766 PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 136KL UT WOS:000318360700005 PM 23494932 ER PT J AU Kim, YM Kumar, A Hatt, A Morozovska, AN Tselev, A Biegalski, MD Ivanov, I Eliseev, EA Pennycook, SJ Rondinelli, JM Kalinin, SV Borisevich, AY AF Kim, Young-Min Kumar, Amit Hatt, Alison Morozovska, Anna N. Tselev, Alexander Biegalski, Michael D. Ivanov, Ilya Eliseev, Eugene A. Pennycook, Stephen J. Rondinelli, James M. Kalinin, Sergei V. Borisevich, Albina Y. TI Interplay of Octahedral Tilts and Polar Order in BiFeO3 Films SO ADVANCED MATERIALS LA English DT Article DE transition metal oxides; multiferroics; BiFeO3; scanning transmission electron microscopy; piezoresponse force microscopy ID FORCE MICROSCOPY; OXIDE HETEROSTRUCTURES; DOMAIN-STRUCTURE; POLARIZATION; INTERFACES; FERROELECTRICS; CRYSTALS; SUPERLATTICES; TRANSITIONS; ELECTRONICS AB Heterointerface stabilization of a distinct nonpolar BiFeO3 phase occurs simultaneously with changes in octahedral tilts. The resulting phase arises via suppression of polarization by a structural order parameter and can thus be identified as anti-ferroelectric (Fe displacements - bottom panel). The phase is metastable and can be switched into a polar ferroelectric state (top panel) under an applied electric bias. C1 [Kim, Young-Min; Pennycook, Stephen J.; Borisevich, Albina Y.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Kim, Young-Min] Korea Basic Sci Inst, Div Electron Microscop Res, Taejon 305806, South Korea. [Kumar, Amit; Tselev, Alexander; Biegalski, Michael D.; Ivanov, Ilya; Kalinin, Sergei V.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Hatt, Alison] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA. [Morozovska, Anna N.] Natl Acad Sci Ukraine, Inst Phys, UA-03028 Kiev, Ukraine. [Eliseev, Eugene A.] Natl Acad Sci Ukraine, Inst Problems Mat Sci, UA-03142 Kiev, Ukraine. [Rondinelli, James M.] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA. RP Borisevich, AY (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM albinab@ornl.gov RI Kumar, Amit/C-9662-2012; Kim, Young-Min/B-7338-2012; Hatt, Alison/B-4652-2010; Borisevich, Albina/B-1624-2009; Rondinelli, James/A-2071-2009; ivanov, ilia/D-3402-2015; Tselev, Alexander/L-8579-2015; Kalinin, Sergei/I-9096-2012; Foundry, Molecular/G-9968-2014 OI Kumar, Amit/0000-0002-1194-5531; Kim, Young-Min/0000-0003-3220-9004; Borisevich, Albina/0000-0002-3953-8460; Rondinelli, James/0000-0003-0508-2175; ivanov, ilia/0000-0002-6726-2502; Tselev, Alexander/0000-0002-0098-6696; Kalinin, Sergei/0000-0001-5354-6152; FU U.S. Department of Energy (DOE), Basic Energy Sciences (BES), Materials Sciences and Engineering Division; ORNL's Shared Research Equipment (ShaRE) User Program; DOE-BES; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DEAC02-05CH11231]; U.S. Office of Naval Research [N00014-11-1-0664] FX This research was supported in part by the U.S. Department of Energy (DOE), Basic Energy Sciences (BES), Materials Sciences and Engineering Division (A.Y.B., Y.M.K., S. V. K., A. K.), and through a user project supported by ORNL's Shared Research Equipment (ShaRE) User Program (YMK, AYB), which is also sponsored by DOE-BES. Computational work (A. H.) was performed at the Molecular Foundry and supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under contract no. DEAC02-05CH11231. Calculations were performed on the Lawrencium computer cluster at Lawrence Berkeley National Laboratory. J.M.R. was supported by the U.S. Office of Naval Research, under grant number N00014-11-1-0664. The samples used in this study were provided by Ying-Hao Chu and Pu Yu (UC Berkeley). The authors thank Ian Reaney for fruitful advice, and express deep gratitude to Ramamoorthy Ramesh for consistent encouragement and advice throughout this work. NR 52 TC 39 Z9 39 U1 8 U2 213 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 0935-9648 EI 1521-4095 J9 ADV MATER JI Adv. Mater. PD MAY 7 PY 2013 VL 25 IS 17 BP 2497 EP 2504 DI 10.1002/adma.201204584 PG 8 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 136KL UT WOS:000318360700019 PM 23505214 ER PT J AU Boutchko, R Sitek, A Gullberg, GT AF Boutchko, R. Sitek, A. Gullberg, G. T. TI Practical implementation of tetrahedral mesh reconstruction in emission tomography SO PHYSICS IN MEDICINE AND BIOLOGY LA English DT Article ID CARDIAC SPECT; POINT CLOUD; PHANTOM; MODEL AB This paper presents a practical implementation of image reconstruction on tetrahedral meshes optimized for emission computed tomography with parallel beam geometry. Tetrahedral mesh built on a point cloud is a convenient image representation method, intrinsically three-dimensional and with a multi-level resolution property. Image intensities are defined at the mesh nodes and linearly interpolated inside each tetrahedron. For the given mesh geometry, the intensities can be computed directly from tomographic projections using iterative reconstruction algorithms with a system matrix calculated using an exact analytical formula. The mesh geometry is optimized for a specific patient using a two stage process. First, a noisy image is reconstructed on a finely-spaced uniform cloud. Then, the geometry of the representation is adaptively transformed through boundary-preserving node motion and elimination. Nodes are removed in constant intensity regions, merged along the boundaries, and moved in the direction of the mean local intensity gradient in order to provide higher node density in the boundary regions. Attenuation correction and detector geometric response are included in the system matrix. Once the mesh geometry is optimized, it is used to generate the final system matrix for ML-EM reconstruction of node intensities and for visualization of the reconstructed images. In dynamic PET or SPECT imaging, the system matrix generation procedure is performed using a quasi-static sinogram, generated by summing projection data from multiple time frames. This system matrix is then used to reconstruct the individual time frame projections. Performance of the new method is evaluated by reconstructing simulated projections of the NCAT phantom and the method is then applied to dynamic SPECT phantom and patient studies and to a dynamic microPET rat study. Tetrahedral mesh-based images are compared to the standard voxel-based reconstruction for both high and low signal-to-noise ratio projection datasets. The results demonstrate that the reconstructed images represented as tetrahedral meshes based on point clouds offer image quality comparable to that achievable using a standard voxel grid while allowing substantial reduction in the number of unknown intensities to be reconstructed and reducing the noise. C1 [Boutchko, R.; Gullberg, G. T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Sitek, A.] Massachusetts Gen Hosp, Boston, MA 02114 USA. RP Boutchko, R (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,MS 55R0121, Berkeley, CA 94720 USA. EM rbuchko@lbl.gov OI Sitek, Arkadiusz/0000-0002-0677-4002 FU National Institutes of Health [R01-EB07219, R01-HL50663, R01-EB00121]; Office of Science, Office of Biological and Environmental Research of the US Department of Energy [DE-AC02-05CH11231] FX The work presented in this paper has been funded in part by National Institutes of Health grants R01-EB07219, R01-HL50663 and R01-EB00121 and by the Director, Office of Science, Office of Biological and Environmental Research of the US Department of Energy under contract no. DE-AC02-05CH11231. The authors would like to thank Dr Bryan Reutter (formerly LBNL), Dr Youngho Seo (UCSF) and Mr Andrew Hernandez (formerly UCSF) for their help in acquiring and preparing the experimental data and Dr W Paul Segars, Department of Bioengineering, Duke University for providing the digital NCAT phantom. NR 18 TC 5 Z9 5 U1 0 U2 16 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0031-9155 J9 PHYS MED BIOL JI Phys. Med. Biol. PD MAY 7 PY 2013 VL 58 IS 9 BP 3001 EP 3022 DI 10.1088/0031-9155/58/9/3001 PG 22 WC Engineering, Biomedical; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Radiology, Nuclear Medicine & Medical Imaging GA 125ZD UT WOS:000317579900017 PM 23588373 ER PT J AU Inskeep, WP Jay, ZJ Tringe, SG Herrgard, MJ Rusch, DB AF Inskeep, William P. Jay, Zackary J. Tringe, Susannah G. Herrgard, Markus J. Rusch, Douglas B. CA YNP Metagenome Project Steering Co TI The YNP metagenome project: environmental parameters responsible for microbial distribution in the Yellowstone geothermal ecosystem SO FRONTIERS IN MICROBIOLOGY LA English DT Article DE thermophiles; geochemistry; microbial interactions; microbial mats; functional genomics ID SPRING CYANOBACTERIAL MAT; NATIONAL-PARK; HYDROTHERMAL SYSTEM; COMMUNITY STRUCTURE; GEOCHEMISTRY; BACTERIA; GENOMES; ENERGETICS; POPULATIONS; METABOLISM AB The Yellowstone geothermal complex contains over 10,000 diverse geothermal features that host numerous phylogenetically deeply rooted and poorly understood archaea, bacteria, and viruses. Microbial communities in high-temperature environments are generally less diverse than soil, marine, sediment, or lake habitats and therefore offer a tremendous opportunity for studying the structure and function of different model microbial communities using environmental metagenomics. One of the broader goals of this study was to establish linkages among microbial distribution, metabolic potential, and environmental variables. Twenty geochemically distinct geothermal ecosystems representing a broad spectrum of Yellowstone hot-spring environments were used for metagenomic and geochemical analysis and included approximately equal numbers of: (1) phototrophic mats, (2) "filamentous streamer" communities, and (3) archaeal-dominated sediments. The metagenomes were analyzed using a suite of complementary and integrative bioinformatic tools, including phylogenetic and functional analysis of both individual sequence reads and assemblies of predominant phylotypes. This volume identifies major environmental determinants of a large number of thermophilic microbial lineages, many of which have not been fully described in the literature nor previously cultivated to enable functional and genomic analyses. Moreover, protein family abundance comparisons and in-depth analyses of specific genes and metabolic pathways relevant to these hot-spring environments reveal hallmark signatures of metabolic capabilities that parallel the distribution of phylotypes across specific types of geochemical environments. C1 [Inskeep, William P.; Jay, Zackary J.] Montana State Univ, Dept Land Resources & Environm Sci, Bozeman, MT 59717 USA. [Inskeep, William P.; Jay, Zackary J.] Montana State Univ, Thermal Biol Inst, Bozeman, MT 59717 USA. [Tringe, Susannah G.] Joint Genome Inst, Dept Energy, Walnut Creek, CA USA. [Herrgard, Markus J.] Tech Univ Denmark, Novo Nordisk Fdn Ctr Biosustainabil, Horsholm, Denmark. [Rusch, Douglas B.] Indiana Univ, Ctr Genom & Bioinformat, Bloomington, IN USA. RP Inskeep, WP (reprint author), Montana State Univ, Thermal Biol Inst, Dept Land Resources & Environm Sci, Bozeman, MT 59717 USA. EM binskeep@montana.edu; sgtringe@lbl.gov FU National Science Foundation Research Coordination Network Program [MCB 0342269]; DOE-Joint Genome Institute Community Sequencing Program [CSP 787081]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX Authors appreciate support from the National Science Foundation Research Coordination Network Program (MCB 0342269), the DOE-Joint Genome Institute Community Sequencing Program (CSP 787081) as well as all individual author institutions and associated research support that together has made this study possible. The work conducted by the U.S. Department of Energy Joint Genome Institute is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Authors appreciate the research permit focused on the YNP metagenome project (Permit No, YELL-5568, 2007-2010), and managed by C. Hendrix and S. Guenther (Center for Resources, YNP). NR 54 TC 34 Z9 34 U1 4 U2 45 PU FRONTIERS RESEARCH FOUNDATION PI LAUSANNE PA PO BOX 110, LAUSANNE, 1015, SWITZERLAND SN 1664-302X J9 FRONT MICROBIOL JI Front. Microbiol. PD MAY 6 PY 2013 VL 4 AR 67 DI 10.3389/fmicb.2013.00067 PG 15 WC Microbiology SC Microbiology GA AA4YB UT WOS:000331101500001 PM 23653623 ER PT J AU Chen, J Trigo, M Fahy, S Murray, ED Sheu, YM Graber, T Henning, R Chien, YJ Uher, C Reis, DA AF Chen, J. Trigo, M. Fahy, S. Murray, E. D. Sheu, Y. M. Graber, T. Henning, R. Chien, Y. J. Uher, C. Reis, D. A. TI Time- and momentum-resolved probe of heat transport in photo-excited bismuth SO APPLIED PHYSICS LETTERS LA English DT Article ID FUNCTIONAL PERTURBATION-THEORY; PHONONS AB We use time- and momentum-resolved x-ray scattering to study thermalization in a photo-excited thin single crystal bismuth film on sapphire. The time-resolved changes of the diffuse scattering show primarily a quasi-thermal phonon distribution that is established in less than or similar to 100 ps and that follows the time-scale of thermal transport. Ultrafast melting measurements under high laser excitation show that epitaxial regrowth of the liquid phase occurs on the time-scale of thermal transport across the bismuth-sapphire interface. (C) 2013 AIP Publishing LLC. C1 [Chen, J.; Trigo, M.; Reis, D. A.] SLAC Natl Accelerator Lab, PULSE Inst, Menlo Pk, CA 94025 USA. [Chen, J.; Reis, D. A.] Stanford Univ, Dept Photon Sci & Appl Phys, Stanford, CA 94305 USA. [Fahy, S.] Univ Coll Cork, Dept Phys, Cork, Ireland. [Murray, E. D.] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA. [Sheu, Y. M.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. [Graber, T.; Henning, R.] Univ Chicago, Ctr Adv Radiat Sources, Chicago, IL 60637 USA. [Chien, Y. J.; Uher, C.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. RP Chen, J (reprint author), SLAC Natl Accelerator Lab, PULSE Inst, Menlo Pk, CA 94025 USA. EM chenjian@slac.stanford.edu RI Murray, Eamonn/J-8476-2014 OI Murray, Eamonn/0000-0003-1526-663X FU U.S. Department of Energy office of Basic Energy Science through the Division of Materials Sciences and Engineering [DE-AC02-76SF00515]; Science Foundation Ireland; National Center for Research Resources [5P41RR007707]; National Institute of General Medical Sciences, National Institutes of Health [8P41GM103543]; U.S. DOE [DE-AC02-06CH11357]; NIH/NIDDK; Center for Solar and Thermal Energy Conversion, an Energy Frontier Research Center; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0000957] FX J.C., M.T., and D.A.R. acknowledge support from the U.S. Department of Energy office of Basic Energy Science through the Division of Materials Sciences and Engineering under Contract No. DE-AC02-76SF00515. S.F. acknowledges support from the Science Foundation Ireland. Use of the BioCARS Sector 14 was supported by grants from the National Center for Research Resources (5P41RR007707) and the National Institute of General Medical Sciences (8P41GM103543) from the National Institutes of Health. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. Time-resolved set-up at Sector 14 was funded in part through a collaboration with Philip Anfinrud (NIH/NIDDK). Single crystalline films of Bi were grown at the University of Michigan with the support of the Center for Solar and Thermal Energy Conversion, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0000957. NR 20 TC 3 Z9 3 U1 1 U2 18 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAY 6 PY 2013 VL 102 IS 18 AR 181903 DI 10.1063/1.4804291 PG 4 WC Physics, Applied SC Physics GA 164VV UT WOS:000320439900025 ER PT J AU Jones, RE Duda, JC Zhou, XW Kimmer, CJ Hopkins, PE AF Jones, R. E. Duda, J. C. Zhou, X. W. Kimmer, C. J. Hopkins, P. E. TI Investigation of size and electronic effects on Kapitza conductance with non-equilibrium molecular dynamics SO APPLIED PHYSICS LETTERS LA English DT Article ID THERMAL TRANSPORT; INTERFACES; SIMULATION; BOUNDARIES; SILICON; GAN AB In nanosystems, the thermal resistance between materials typically dominates the overall resistance. While size effects on thermal conductivity are well documented, size effects on thermal boundary conductance have only been speculated. In response, we characterize the relationship between interfacial resistance and material dimension using molecular dynamics. We find that the interfacial resistance increases linearly with inverse system length but is insensitive to cross-sectional area. Also, from the temperature-dependence of interfacial resistance, we conclude that contributions of short-wavelength phonons dominate. Lastly, by coupling the molecular dynamics to a two-temperature model, we show that electron-mediated transport has little effect on thermal resistance. (C) 2013 AIP Publishing LLC. C1 [Jones, R. E.; Zhou, X. W.] Sandia Natl Labs, Dept Mech Mat, Livermore, CA 94550 USA. [Duda, J. C.; Hopkins, P. E.] Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA 22904 USA. [Kimmer, C. J.] Indiana Univ SE, Sch Nat Sci, New Albany, IN 47150 USA. RP Jones, RE (reprint author), Sandia Natl Labs, Dept Mech Mat, Livermore, CA 94550 USA. EM rjones@sandia.gov FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 51 TC 21 Z9 21 U1 4 U2 34 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAY 6 PY 2013 VL 102 IS 18 AR 183119 DI 10.1063/1.4804677 PG 5 WC Physics, Applied SC Physics GA 164VV UT WOS:000320439900074 ER PT J AU Peter, SC Malliakas, CD Kanatzidis, MG AF Peter, Sebastian C. Malliakas, Christos D. Kanatzidis, Mercouri G. TI Structure and Unusual Magnetic Properties of YbMn0.17Si1.88 SO INORGANIC CHEMISTRY LA English DT Article ID CRYSTAL-STRUCTURE; LIQUID INDIUM; INTERMETALLIC COMPOUNDS; RMN2GE2 COMPOUNDS; YB; RE; COMPOUND; BEHAVIOR; VALENCE; GROWTH AB YbMn0.17Si1.88 was synthesized from the reaction of ytterbium, manganese, and silicon using indium as a flux. The average structure of YbMn0.17Si1.88 was refined in the monoclinic space group P2(1), with a = 4.0107(8) angstrom, b = 3.8380(8) angstrom, c = 14.458(3) angstrom, beta = 97.97(3)degrees, R1/wR2 = 0.0296/0.0720. The structure can be described as the intergrowth of three AlB2-type layers and one E BaAl4-type layer. Magnetic susceptibility measurements suggest that the ytterbium atoms in,YbMnxSi2-x exist in a mixed valent or intermediate valent state. YbMn0.17Si1.88 shows weak antiferromagnetic ordering below similar to 4.5 K. The magnetic interactions between the Mn and Yb atoms in YbMn0.17Si1.88 are evident from the magnetic susceptibility measurements performed at low field. A negative magnetization is observed on warming and a positive magnetization on cooling. The heat capacity data suggest moderate heavy fermion behavior. C1 [Peter, Sebastian C.; Malliakas, Christos D.; Kanatzidis, Mercouri G.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. [Peter, Sebastian C.] Jawaharlal Nehru Ctr Adv Sci Res, New Chem Unit, Bangalore 560064, Karnataka, India. [Kanatzidis, Mercouri G.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Kanatzidis, MG (reprint author), Northwestern Univ, Dept Chem, 2145 N Sheridan Rd, Evanston, IL 60208 USA. EM m-kanatzidis@northwestern.edu FU UChicago Argonne, a U.S. DOE Office of Science Laboratory [DE-AC02-06CH11357] FX Work at Argonne National Laboratory is supported by UChicago Argonne, a U.S. DOE Office of Science Laboratory, operated under Contract DE-AC02-06CH11357. NR 59 TC 11 Z9 11 U1 1 U2 28 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD MAY 6 PY 2013 VL 52 IS 9 BP 4909 EP 4915 DI 10.1021/ic3024925 PG 7 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 140QG UT WOS:000318669400028 PM 23617440 ER PT J AU Wu, SJ Wang, SA Polinski, M Beermann, O Kegler, P Malcherek, T Holzheid, A Depmeier, W Bosbach, D Abrecht-Schmitt, TE Alekseev, EV AF Wu, Shijun Wang, Shuao Polinski, Matthew Beermann, Oliver Kegler, Philip Malcherek, Thomas Holzheid, Astrid Depmeier, Wulf Bosbach, Dirk Abrecht-Schmitt, Thomas E. Alekseev, Evgeny V. TI High Structural Complexity of Potassium Uranyl Borates Derived from High-Temperature/High-Pressure Reactions SO INORGANIC CHEMISTRY LA English DT Article ID CATION-CATION INTERACTIONS; CRYSTAL-STRUCTURE; NUCLEAR-WASTE; ALKALINE-SOLUTION; TETRAOXIDO CORE; COORDINATION; URANIUM; ION; MINERALS; PLUTONIUM(III) AB Three new potassium uranyl borates, K-12[(UO2)(19)(UO4)(B2O5)(2)(BO3)(6)(BO2OH)O-10] center dot nH(2)O (TPKBUO-1), K-4[UO2)(5)(BO3)(2)O-4]center dot H2O (TPKBUO-2), and K-15[(UO2)(18)(BO3)(7)O-15] (TPKBUO-3), were synthesized under high-temperature/high-pressure conditions. In all three compounds, the U/B ratio exceeds 1. Boron exhibits BO3 coordination only, which is different from other uranyl borates prepared at room temperature or under mild hydrothermal conditions. A rare uranium(VI) tetraoxide core UO4O2, which is coordinated by two BO3 groups, is observed in the structure of TPKBUO-1. Both structures of TPKBUO-1 and TPKBUO-3 contain three different coordination environments of uranium, namely, UO4O2, UO2O4, and UO2O5 and UO2O4, UO2O5 and UO2O6 bipyramids in TPKBUO-1 and TPKBUO-3, respectively. C1 [Wu, Shijun] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China. [Wu, Shijun; Beermann, Oliver; Kegler, Philip; Holzheid, Astrid; Depmeier, Wulf] Univ Kiel, Inst Geosci, D-24118 Kiel, Germany. [Wu, Shijun; Bosbach, Dirk; Alekseev, Evgeny V.] Forschungszentrum Julich, Inst Energy & Climate Res IEK6, D-52428 Julich, Germany. [Wang, Shuao; Polinski, Matthew; Abrecht-Schmitt, Thomas E.] Univ Notre Dame, Dept Civil Engn & Geol Sci, Notre Dame, IN 46556 USA. [Wang, Shuao; Polinski, Matthew; Abrecht-Schmitt, Thomas E.] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA. [Wang, Shuao] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Actinide Chem Grp, Berkeley, CA 94720 USA. [Wang, Shuao] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Malcherek, Thomas] Univ Hamburg, Mineral Petrog Inst, D-20146 Hamburg, Germany. [Abrecht-Schmitt, Thomas E.] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA. [Alekseev, Evgeny V.] Rhein Westfal TH Aachen, Inst Kristallog, D-52066 Aachen, Germany. RP Abrecht-Schmitt, TE (reprint author), Univ Notre Dame, Dept Civil Engn & Geol Sci, 156 Fitzpatrick Hall, Notre Dame, IN 46556 USA. EM albrecht-schmitt@chem.fsu.edu; e.alekseev@fz-juelich.de RI Polinski, Matthew/G-9936-2013; Wu, Shijun/B-1016-2010; Malcherek, Thomas/M-1424-2014; Kegler, Philip/D-6530-2017; OI Alekseev, Evgeny/0000-0002-4919-5211; Wu, Shijun/0000-0003-0343-3322; Malcherek, Thomas/0000-0001-6622-278X; Kegler, Philip/0000-0002-7031-3817 FU Deutsche Forschungsgemeinschaft [DE 412/43-1]; Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, Heavy Elements Chemistry Program, U.S. Department of Energy [DE-FG02-09ER16026]; Helmholtz Association [VH-NG-815]; National Natural Sciences Foundation of China [41103055] FX We are grateful for the support provided by Deutsche Forschungsgemeinschaft (Grant DE 412/43-1) and by the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, Heavy Elements Chemistry Program, U.S. Department of Energy (Grant DE-FG02-09ER16026), Helmholtz Association (Grant VH-NG-815), and National Natural Sciences Foundation of China (Grant 41103055). NR 65 TC 16 Z9 16 U1 0 U2 28 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 EI 1520-510X J9 INORG CHEM JI Inorg. Chem. PD MAY 6 PY 2013 VL 52 IS 9 BP 5110 EP 5118 DI 10.1021/ic400016z PG 9 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 140QG UT WOS:000318669400048 PM 23566253 ER PT J AU Corn, IR Astudillo-Sanchez, PD Zdilla, MJ Fanwick, PE Shaw, MJ Miller, JT Evans, DH Abu-Omar, MM AF Corn, Isaac R. Astudillo-Sanchez, Pablo D. Zdilla, Michael J. Fanwick, Phillip E. Shaw, Michael J. Miller, Jeffrey T. Evans, Dennis H. Abu-Omar, Mahdi M. TI Synthesis and Electrochemical Reactivity of Molybdenum Dicarbonyl Supported by a Redox-Active alpha-Diimine Ligand SO INORGANIC CHEMISTRY LA English DT Article ID ELECTRONIC-STRUCTURE; RADICAL POLYMERIZATION; BIS(IMINO)PYRIDINE IRON; CARBONYL-COMPLEXES; SPECTROSCOPY; OXIDATION; CATALYSTS; MO; 1,10-PHENANTHROLINE; PHOTOCHEMISTRY AB Low-valent molybdenum dicarbonyl complexes with a diazabutadiene ((mes)DAB(R); [ArN=C(R)C(R)=NAr]; Ar = 2,4,6-trimethylphenyl (mes), R = H or CH3] ligand have been synthesized and fully characterized. The title complexes exhibit elongated DAB C-N and shortened C-C bond lengths over the free ligand and other zerovalent molybdenum complexes of DAB. Compared to known examples theoretically described as iminato pi-radicals (L center dot-), the oxidation state assignment fits a molybdenum(H) description. However, Mo K-edge X-ray absorption spectroscopy indicates that the complexes are best described as molybdenum(0). This example demonstrates that caution should be exercised in assigning the oxidation state based on structural parameters alone. Cyclic voltammetry studies reveal an electrochemical-chemical process that has been identified by in situ Fourier transform infrared spectroelectrochemistry as cis-to-trans isomerization. C1 [Corn, Isaac R.; Astudillo-Sanchez, Pablo D.; Zdilla, Michael J.; Fanwick, Phillip E.; Evans, Dennis H.; Abu-Omar, Mahdi M.] Purdue Univ, Dept Chem, Brown Lab, W Lafayette, IN 47907 USA. [Shaw, Michael J.] So Illinois Univ, Dept Chem, Edwardsville, IL 62026 USA. [Miller, Jeffrey T.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Evans, DH (reprint author), Purdue Univ, Dept Chem, Brown Lab, 560 Oval Dr, W Lafayette, IN 47907 USA. EM evansd@purdue.edu; mabuomar@purdue.edu RI ID, MRCAT/G-7586-2011; OI Shaw, Michael/0000-0001-6776-2382 FU U.S. Department of Energy, Office of Basic Energy Sciences (DOE-BES) [DE-FG-02-06ER15794]; NSF [CHE-0715375]; DOE-BES [DE-AC02-06CH11357]; Chemical Sciences, Geosciences and Biosciences Division, U.S. Department of Energy [DE-AC0-06CH11357] FX Funding for this research was provided by U.S. Department of Energy, Office of Basic Energy Sciences (DOE-BES; Grant DE-FG-02-06ER15794 to M.M.A.-O.), and the NSF (Grant CHE-0715375 to D.H.E.). Use of the APS was supported by the DOE-BES under Contract DE-AC02-06CH11357. MRCAT operations are supported by the Department of Energy and the MRCAT member institutions. Partial funding for J.T.M. was provided by the Chemical Sciences, Geosciences and Biosciences Division, U.S. Department of Energy, under Contract DE-AC0-06CH11357. NR 45 TC 7 Z9 7 U1 0 U2 31 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD MAY 6 PY 2013 VL 52 IS 9 BP 5457 EP 5463 DI 10.1021/ic400348j PG 7 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 140QG UT WOS:000318669400083 PM 23578340 ER PT J AU Odoh, SO Schreckenbach, G AF Odoh, Samuel O. Schreckenbach, Georg TI DFT Study of Uranyl Peroxo Complexes with H2O, F-, OH-, CO32-, and NO3- SO INORGANIC CHEMISTRY LA English DT Article ID EFFECTIVE CORE POTENTIALS; DENSITY-FUNCTIONAL THEORY; QUANTUM-CHEMICAL METHODS; OXO LIGAND-EXCHANGE; CIS-DIOXIDO URANYL; ELECTRONIC-STRUCTURE; ACTINIDE COMPOUNDS; GAS-PHASE; AB-INITIO; ACETONITRILE COORDINATION AB The structural and electronic properties of monoperoxo and diperoxo uranyl complexes with aquo, fluoride, hydroxo, carbonate, and nitrate ligands have been studied using scalar relativistic density functional theory (DFT). Only the complexes in which the peroxo ligands are coordinated to the uranyl moiety in a bidentate mode were considered. The calculated binding energies confirm that the affinity of the peroxo ligand for the uranyl group far exceeds that of the F-, OH-, CO32-, NO3-, and H2O ligands. The formation of the monoperoxo complexes from UO2( H2O)(5)(2+) and HO2- were found to be exothermic in solution. In contrast, the formation of the monouranyl-diperoxo, UO2(O-2)(2)X-2(4-) or UO2(O-2)(2)X4-/3- (where X is any of F-, OH-, CO32-, or NO3-), complexes were all found to be endothermic in aqueous solution. This suggests that the monoperoxo species are the terminal monouranyl peroxo complexes in solution, in agreement with recent experimental work. Overall, we find that the properties of the uranyl-peroxo complexes conform to well-known trends: the coordination of the peroxo ligand weakens the U-O-yl bonds, stabilizes the sigma(d) orbitals and causes a mixing between the pi- and peroxo sigma- and pi-orbitals. The weakening of the U-O-yl bonds upon peroxide coordination results in uranyl stretching vibrational frequencies that are much lower than those obtained after the coordination of carbonato or hydroxo ligands. C1 [Odoh, Samuel O.; Schreckenbach, Georg] Univ Manitoba, Dept Chem, Winnipeg, MB R3T 2N2, Canada. RP Odoh, SO (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, POB 999, Richland, WA 99352 USA. EM samuel.odoh@pnnl.gov; schrecke@cc.umanitoba.ca FU estate of Ernst and Ingrid Buck; University of Manitoba; Provincial Government of Manitoba, Canada; Natural Sciences and Engineering Research Council of Canada (NSERC) FX The authors thank Dr. Grigory Shamov for helpful discussions. S.O.O. gratefully thanks the estate of Ernst and Ingrid Buck, the University of Manitoba, and the Provincial Government of Manitoba, Canada, for their financial support. G.S. acknowledges financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC). NR 83 TC 15 Z9 15 U1 7 U2 64 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD MAY 6 PY 2013 VL 52 IS 9 BP 5590 EP 5602 DI 10.1021/ic400652b PG 13 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 140QG UT WOS:000318669400098 PM 23573914 ER PT J AU Luk, TS Kim, I Campione, S Howell, SW Subramania, GS Grubbs, RK Brener, I Chen, HT Fan, SH Sinclair, MB AF Luk, Ting S. Kim, Iltai Campione, Salvatore Howell, Stephen W. Subramania, Ganapathi S. Grubbs, Robert K. Brener, Igal Chen, Hou-Tong Fan, Shanhui Sinclair, Michael B. TI Near-infrared surface plasmon polariton dispersion control with hyperbolic metamaterials SO OPTICS EXPRESS LA English DT Article ID OPTICAL HYPERLENS; NANOSCALE; RANGE; FILMS; LIMIT AB We demonstrate experimentally signatures and dispersion control of surface plasmon polaritons from 1 to 1.8 mu m using periodic multilayer metallo-dielectric hyperbolic metamaterials. The fabricated structures are comprised of smooth films with very low metal filling factor. The measured dispersion properties of these hyperbolic metamaterials agree well with calculations using transfer matrix, finite-difference time-domain, and effective medium approximation methods despite using only 2.5 periods. The enhancement factor in the local photonic density of states from the studied samples in the near-infrared wavelength region is determined to be 2.5-3.5. Development of this type of metamaterial is relevant to subwavelength imaging, spontaneous emission and thermophotovoltaic applications. (C) 2013 Optical Society of America C1 [Luk, Ting S.; Kim, Iltai; Howell, Stephen W.; Subramania, Ganapathi S.; Grubbs, Robert K.; Brener, Igal; Sinclair, Michael B.] Sandia Natl Labs, Albuquerque, NM 87123 USA. [Luk, Ting S.; Kim, Iltai; Brener, Igal] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87123 USA. [Campione, Salvatore] Univ Calif Irvine, Dept Elect Engn & Comp Sci, Irvine, CA 92697 USA. [Chen, Hou-Tong] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. [Fan, Shanhui] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA. RP Luk, TS (reprint author), Sandia Natl Labs, 1515 Eubank SE, Albuquerque, NM 87123 USA. EM tsluk@sandia.gov RI Chen, Hou-Tong/C-6860-2009; Fan, Shanhui/B-4659-2012; Campione, Salvatore/A-2349-2015 OI Chen, Hou-Tong/0000-0003-2014-7571; Campione, Salvatore/0000-0003-4655-5485 FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX The authors acknowledge stimulating discussions with Yong Zeng, and Young Chul Jun. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science and Office of Basic Energy Science. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 49 TC 15 Z9 15 U1 4 U2 78 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD MAY 6 PY 2013 VL 21 IS 9 BP 11107 EP 11114 DI 10.1364/OE.21.011107 PG 8 WC Optics SC Optics GA 143YW UT WOS:000318906500099 PM 23669967 ER PT J AU Drachenberg, DR Messerly, MJ Pax, PH Sridharan, A Tassano, J Dawson, J AF Drachenberg, Derrek R. Messerly, Michael J. Pax, Paul H. Sridharan, Arun Tassano, John Dawson, Jay TI First selective mode excitation and amplification in a ribbon core optical fiber SO OPTICS EXPRESS LA English DT Article ID HIGH AVERAGE POWER; LASERS; AMPLIFIERS; AREA; OPERATION AB We propose and demonstrate amplification of a single high-order mode in an optical fiber having an elongated, ribbon-like core having an effective mode area of area of 600 mu m(2) and an aspect ratio of 13:1. When operated as an amplifier, the double-clad, ytterbium doped, photonic crystal fiber produced 50% slope efficiency and a seed-limited power of 10.5 W, corresponding to a gain of 24 dB. The high order mode remained pure through 20 dB of gain without intervention or realignment. (c) 2013 Optical Society of America C1 [Drachenberg, Derrek R.; Messerly, Michael J.; Pax, Paul H.; Sridharan, Arun; Tassano, John; Dawson, Jay] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Drachenberg, DR (reprint author), Lawrence Livermore Natl Lab, L-491,POB 808, Livermore, CA 94551 USA. EM drachenberg1@llnl.gov FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX The authors would like to acknowledge the assistance of Sham Dixit, as well as Jerry Britten and his team, for the fabrication of the binary phase plates. This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. (IM release # LLNL-JRNL-610152). NR 24 TC 13 Z9 13 U1 0 U2 17 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD MAY 6 PY 2013 VL 21 IS 9 BP 11257 EP 11269 DI 10.1364/OE.21.011257 PG 13 WC Optics SC Optics GA 143YW UT WOS:000318906500115 PM 23669983 ER PT J AU Zhu, LH Shao, MR Peng, RW Fan, RH Huang, XR Wang, M AF Zhu, Li-Hao Shao, Ming-Rui Peng, Ru-Wen Fan, Ren-Hao Huang, Xian-Rong Wang, Mu TI Broadband absorption and efficiency enhancement of an ultra-thin silicon solar cell with a plasmonic fractal SO OPTICS EXPRESS LA English DT Article ID LIMIT; PHOTOVOLTAICS; ARRAYS AB We report in this work that quantum efficiency can be significantly enhanced in an ultra-thin silicon solar cell coated by a fractal-like pattern of silver nano cuboids. When sunlight shines this solar cell, multiple antireflection bands are achieved mainly due to the self-similarity in the fractal-like structure. Actually, several kinds of optical modes exist in the structure. One is cavity modes, which come from Fabry-Perot resonances at the longitudinal and transverse cavities, respectively; the other is surface plasmon (SP) modes, which propagate along the silicon-silver interface. Due to the fact that several feature sizes distribute in a fractal-like structure, both low-index and high-index SP modes are simultaneously excited. As a whole effect, broadband absorption is achieved in this solar cell. Further by considering the ideal process that the lifetime of carriers is infinite and the recombination loss is ignored, we demonstrate that external quantum efficiency of the solar cell under this ideal condition is significantly enhanced. This theoretical finding contributes to high-performance plasmonic solar cells and can be applied to designing miniaturized compact photovoltaic devices. (C) 2013 Optical Society of America C1 [Zhu, Li-Hao; Shao, Ming-Rui; Peng, Ru-Wen; Fan, Ren-Hao; Wang, Mu] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China. [Zhu, Li-Hao; Shao, Ming-Rui; Peng, Ru-Wen; Fan, Ren-Hao; Wang, Mu] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. [Huang, Xian-Rong] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Zhu, LH (reprint author), Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China. EM rwpeng@nju.edu.cn FU Ministry of Science and Technology of China [2012CB921502, 2010CB630705]; National Science Foundation of China [11034005, 61077023, 11021403]; Ministry of Education of China [20100091110029]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work has been supported by the Ministry of Science and Technology of China (Grant Nos. 2012CB921502 and 2010CB630705), the National Science Foundation of China (Grant Nos. 11034005, 61077023, and 11021403), and partly by the Ministry of Education of China (20100091110029). XRH was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 33 TC 26 Z9 28 U1 3 U2 67 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD MAY 6 PY 2013 VL 21 IS 9 BP A313 EP A323 DI 10.1364/OE.21.00A313 PG 11 WC Optics SC Optics GA 143YW UT WOS:000318906500002 PM 24104419 ER PT J AU Chen, G Zwart, PH Li, DS AF Chen, Gang Zwart, Peter H. Li, Dongsheng TI Component Particle Structure in Heterogeneous Disordered Ensembles Extracted from High-Throughput Fluctuation X-Ray Scattering SO PHYSICAL REVIEW LETTERS LA English DT Article ID PROTEIN AB The ring angular correlation function is a characteristic feature determined by the particle structure. Averaging over a large number of ring angular correlation functions calculated from x-ray diffraction patterns will cancel out the cross correlations between different particles and converge to the autocorrelation functions of single particles. Applied on heterogeneous disordered ensembles, the retrieved function is a linear combination of a single-particle autocorrelation function multiplied by the molar ratios in a heterogeneous system. Using this relation, the ring angular correlation functions of the individual component particles in the heterogeneous system can be retrieved through the high throughput fluctuation x-ray scattering technique. This method is demonstrated with a simulated heterogeneous system composed of nanorods, nanoprism, and nanorice. C1 [Chen, Gang] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China. [Chen, Gang] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Zwart, Peter H.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Li, Dongsheng] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. RP Chen, G (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China. EM chengang@sinap.ac.cn; phzwart@lbl.gov; dongsheng.li@pnnl.gov FU Hundred Talents project of the Chinese Academy of Sciences; Laboratory Directed Research and Development (LDRD) funding from Lawrence Berkeley National Laboratory; Office of Science, of the U.S. Department of Energy [DE-AC02-05CH11231]; LDRD; U.S. Department of Energy; Battelle [DE-AC06-76RL01830] FX G. C. acknowledges the support from the Hundred Talents project of the Chinese Academy of Sciences. P. H. Z. was supported by Laboratory Directed Research and Development (LDRD) funding from Lawrence Berkeley National Laboratory, provided by the Director, Office of Science, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. D. L. acknowledges the support from the LDRD-funded Chemical Imaging Initiative at Pacific Northwest National Laboratory, operated for the U.S. Department of Energy by Battelle under Contract No. DE-AC06-76RL01830. NR 18 TC 10 Z9 10 U1 1 U2 23 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 6 PY 2013 VL 110 IS 19 AR 195501 DI 10.1103/PhysRevLett.110.195501 PG 5 WC Physics, Multidisciplinary SC Physics GA 137ZB UT WOS:000318476100006 PM 23705716 ER PT J AU Crawford, MK Smalley, RJ Cohen, G Hogan, B Wood, B Kumar, SK Melnichenko, YB He, L Guise, W Hammouda, B AF Crawford, M. K. Smalley, R. J. Cohen, G. Hogan, B. Wood, B. Kumar, S. K. Melnichenko, Y. B. He, L. Guise, W. Hammouda, B. TI Chain Conformation in Polymer Nanocomposites with Uniformly Dispersed Nanoparticles SO PHYSICAL REVIEW LETTERS LA English DT Article ID MONTE-CARLO; REINFORCEMENT; SIMULATIONS; DIMENSIONS; PARTICLES AB The effect of nanoparticles (NP) on chain dimensions in polymer melts has been the source of considerable theoretical and experimental controversy. We exploit our ability to ensure a spatially uniform dispersion of 13 nm silica NPs miscible in polystyrene melts, together with neutron scattering, x-ray scattering, and transmission electron microscopy, to show that there is no measurable change in the polymer size in miscible mixtures, regardless of the relative sizes of the chains and the nanoparticles, and for NP loadings as high as 32.7 vol%. Our results provide a firm basis from which to understand the properties of polymer nanocomposites. C1 [Crawford, M. K.; Smalley, R. J.; Cohen, G.; Hogan, B.; Wood, B.; Guise, W.] DuPont Co Inc, Cent Res & Dev, Wilmington, DE 19880 USA. [Kumar, S. K.] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA. [Melnichenko, Y. B.; He, L.] Oak Ridge Natl Lab, Biol & Soft Matter Div, Oak Ridge, TN 37831 USA. [Guise, W.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Hammouda, B.] NIST, Ctr Neutron Res, Gaithersburg, MD 20879 USA. RP Crawford, MK (reprint author), DuPont Co Inc, Cent Res & Dev, E400-5424, Wilmington, DE 19880 USA. OI He, Lilin/0000-0002-9560-8101 FU Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy; U.S. DOE [DE-AC02-06CH11357]; National Science Foundation [DMR-1006514, DMR-0944772] FX A portion of this research at Oak Ridge National Laboratory's High Flux Isotope Reactor was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. S. K. thanks the National Science Foundation (Grant No. DMR-1006514) for partial support of this research. We acknowledge the support of the National Institute of Standards and Technology, U.S. Department of Commerce, in providing some of the neutron research facilities used in this work. This work utilized facilities supported in part by the National Science Foundation under Grant No. DMR-0944772. The identification of commercial products does not imply endorsement by the National Institute of Standards and Technology nor does it imply that these are the best for the purpose. NR 29 TC 35 Z9 35 U1 7 U2 112 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 6 PY 2013 VL 110 IS 19 AR 196001 DI 10.1103/PhysRevLett.110.196001 PG 5 WC Physics, Multidisciplinary SC Physics GA 137ZB UT WOS:000318476100008 PM 23705720 ER PT J AU Thomason, JWG Garoby, R Gilardoni, S Jenner, LJ Pasternak, J AF Thomason, J. W. G. Garoby, R. Gilardoni, S. Jenner, L. J. Pasternak, J. TI Proton driver scenarios at CERN and Rutherford Appleton Laboratory SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article AB The concept of sharing a high-power proton accelerator (proton driver) between neutrino production and other facilities such as a high-energy collider or a spallation neutron source is an attractive, cost-effective solution which is being studied in site-specific cases as part of accelerator upgrade plans at CERN and at the ISIS facility at the Rutherford Appleton Laboratory. Descriptions of these proton-driver scenarios will be given primarily in the context of the Neutrino Factory, but other neutrino production plans at CERN will also be noted. C1 [Thomason, J. W. G.; Pasternak, J.] STFC ISIS, Didcot OX11 0QX, Oxon, England. [Garoby, R.; Gilardoni, S.] CERN, Geneva, Switzerland. [Jenner, L. J.] Univ London Imperial Coll Sci Technol & Med, London SW7 2BW, England. [Jenner, L. J.; Pasternak, J.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Thomason, JWG (reprint author), STFC ISIS, Didcot OX11 0QX, Oxon, England. FU European Community under the European Commission Framework Programme 7 Design Study: EUROnu [212372] FX We acknowledge the financial support of the European Community under the European Commission Framework Programme 7 Design Study: EUROnu, Project No. 212372. We also thank colleagues from the International Design Study (IDS-NF) collaboration for fruitful discussions concerning this work. NR 19 TC 4 Z9 4 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD MAY 6 PY 2013 VL 16 IS 5 AR 054801 DI 10.1103/PhysRevSTAB.16.054801 PG 7 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 137ZD UT WOS:000318476400003 ER PT J AU Roehling, JD Batenburg, KJ Swain, FB Moule, AJ Arslan, I AF Roehling, John D. Batenburg, K. Joost Swain, F. Benjamin Moule, Adam J. Arslan, Ilke TI Three-Dimensional Concentration Mapping of Organic Blends SO ADVANCED FUNCTIONAL MATERIALS LA English DT Article DE bulk-heterojunction; morphology; miscibility; tomography; endohedral fullerenes ID POLYMER SOLAR-CELLS; PHOTOVOLTAIC DEVICES; NANOSCALE ORGANIZATION; ENDOHEDRAL FULLERENES; ELECTRON-MICROSCOPY; MORPHOLOGY; EFFICIENCY; MISCIBILITY; POLY(3-HEXYLTHIOPHENE); FILMS AB The three-dimensional morphology of mixed organic layers are quantitatively measured using high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) with electron tomography for the first time. The mixed organic layers used for organic photovoltaic applications have not been previously imaged using STEM tomography as there is insufficient contrast between donor and acceptor components. Contrast is generated by substituting fullerenes with endohedral fullerenes that contain a Lu3N cluster within the fullerene cage. The high contrast and signal-to-noise ratio, in combination with use of the discrete algebraic reconstruction technique (DART), allows generation of the most detailed and accurate three-dimensional map of BHJ morphology to date. From the STEM-tomography reconstructions it is determined that three distinct material phases are present within the BHJs. By observing changes to morphology and mixing ratio during thermal and solvent annealing, the effects of mutual solubility and fullerene crystallization on morphology and long term stability are determined. This material/technique combination shows itself as a powerful tool for examining morphology in detail and allows for observation of nanoscopic changes in local concentration. C1 [Roehling, John D.; Moule, Adam J.] Univ Calif Davis, Davis, CA 95616 USA. [Batenburg, K. Joost] Ctr Wiskunde & Informat, NL-1090 GB Amsterdam, Netherlands. [Batenburg, K. Joost] Univ Antwerp, Vis Lab, B-2610 Antwerp, Belgium. [Swain, F. Benjamin] Luna Innovat Inc, Danville, VA 24541 USA. [Arslan, Ilke] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Roehling, JD (reprint author), Univ Calif Davis, 1 Shields Ave Davis, Davis, CA 95616 USA. EM amoule@ucdavis.edu; ilke.arslan@pnnl.gov OI Moule, Adam/0000-0003-1354-3517 FU Nigel Browning; UC Lab; The National Science Foundation Energy for Sustainability Program [0933435]; Laboratory Directed Research & Development program at PNNL; US Department of Energy [DE-AC05-76RL01830]; Netherlands Organisation for Scientific Research (NWO) [639.072.005] FX J.D.R. and A.J.M. wrote the manuscript, J.D.R. performed the STEM imaging, 3D reconstructions and analysis. K.J.B. developed the DART algorithm assisted with its implementation. F. B. S. synthesized the endohedral fullerenes used in the study. I. A. supervised the STEM tomography imaging, reconstructions, and analysis and A.J.M. supervised the sample preparation and materials science interpretation and calculations. We thank Luna Innovations, Inc. for donating the endohedral fullerenes used in this study and Plextronics for the P3HT. We also thank Wim van Aarle for coding the DART algorithm and assisting with its implementation. We gratefully acknowledge Nigel Browning and the UC Lab Fee for financially supporting the work and The National Science Foundation Energy for Sustainability Program, Award No. 0933435. This research was supported in part by the Laboratory Directed Research & Development program at PNNL. The Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy under contract DE-AC05-76RL01830. K.J.B. was supported by the Netherlands Organisation for Scientific Research (NWO), programme 639.072.005. NR 56 TC 30 Z9 30 U1 1 U2 91 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 1616-301X J9 ADV FUNCT MATER JI Adv. Funct. Mater. PD MAY 6 PY 2013 VL 23 IS 17 BP 2115 EP 2122 DI 10.1002/adfm.201202190 PG 8 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 135VD UT WOS:000318315800003 ER PT J AU Kornobis, K Kumar, N Lodowski, P Jaworska, M Piecuch, P Lutz, JJ Wong, BM Kozlowski, PM AF Kornobis, Karina Kumar, Neeraj Lodowski, Piotr Jaworska, Maria Piecuch, Piotr Lutz, Jesse J. Wong, Bryan M. Kozlowski, Pawel M. TI Electronic structure of the S1 state in methylcobalamin: Insight from CASSCF/MC-XQDPT2, EOM-CCSD, and TD-DFT calculations SO JOURNAL OF COMPUTATIONAL CHEMISTRY LA English DT Article DE excited states; B12 cofactors; complete active space self-consistent field; second-order multiconfigurational quasi-degenerate perturbation theory; equation-of-motion coupled-cluster singles and doubles; time-dependent density functional theory; methylcobalamin ID GENERALIZED-GRADIENT-APPROXIMATION; DENSITY-FUNCTIONAL THEORY; COUPLED-CLUSTER METHODS; CO-C BOND; 2ND-ORDER PERTURBATION-THEORY; PRIMARY PHOTOLYSIS MECHANISM; SYMMETRY-ADAPTED-CLUSTER; FREE-BASE PORPHIN; EXCITED-STATES; B-12 COENZYMES AB The methylcobalamin cofactor (MeCbl), which is one of the biologically active forms of vitamin B12, has been the subject of many spectroscopic and theoretical investigations. Traditionally, the lowest-energy part of the photoabsorption spectrum of MeCbl (the so-called / band) has been interpreted as an S0S1 electronic transition dominated by * excitations associated with the CC stretching of the corrin ring. However, a more quantitative band-shape analysis of the / spectral region, along with circular dichroism (CD), magnetic CD, and resonance Raman data, has revealed the presence of a second electronic transition that involves the CoCMe bond weakening. Conversely, the lowest-energy excitations based on transient absorption spectroscopy measurements have been interpreted as metal-to-ligand charge transfer (MLCT) transitions. To resolve the existing controversy about the interpretation of the S1 state of MeCbl, calculations have been performed using two independent ab initio wavefunction-based methods. These include the modified variant of the second-order multiconfigurational quasi-degenerate perturbation theory (MC-XQDPT2), using complete active space self-consistent field orbitals, and the equation-of-motion coupled-cluster singles and doubles (EOM-CCSD) approach using restricted HartreeFock orbitals. It is shown that both ab initio methods provide a consistent description of the S1 state as having an MLCT character. In addition, the performance of different types of functionals, including hybrid (B3LYP, MPW1PW91, TPSSh), generalized-gradient-approximation-type (GGA-type) (BP86, BLYP, MPWPW91), meta-GGA (TPSS), and range-separated (CAM-B3LYP, LC-BLYP) approaches, has been examined and the results of the corresponding time-dependent density functional theory calculations have been benchmarked against the MC-XQDPT2 and EOM-CCSD data. The hybrid functionals support the interpretation in which the S1 state represents a * transition localized on corrin, while pure GGA, meta-GGA, and LC-BLYP functionals produce results consistent with the MLCT assignment. (c) 2013 Wiley Periodicals, Inc. C1 [Kornobis, Karina; Kumar, Neeraj; Kozlowski, Pawel M.] Univ Louisville, Dept Chem, Louisville, KY 40292 USA. [Lodowski, Piotr; Jaworska, Maria] Univ Silesia, Inst Chem, PL-40006 Katowice, Poland. [Piecuch, Piotr; Lutz, Jesse J.] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA. [Wong, Bryan M.] Sandia Natl Labs, Dept Chem Mat, Livermore, CA 94551 USA. RP Kornobis, K (reprint author), Univ Louisville, Dept Chem, 2320 South Brook St, Louisville, KY 40292 USA. EM piecuch@chemistry.msu.edu; pawel@louisville.edu RI Kumar, Neeraj/E-4256-2013; Wong, Bryan/B-1663-2009; Piecuch, Piotr/C-4435-2011; Kumar, Neeraj/M-3279-2015 OI Wong, Bryan/0000-0002-3477-8043; Kumar, Neeraj/0000-0001-6713-2129 FU Academic Computer Centre CYFRONET of the University of Science and Technology in Cracow, ACC CYFRONET AGH, Krakow, Poland [MNiSW/SGI3700/USlaski/111/2007, MNiSW/IBM_BC_HS21/USlaski/111/2007] FX The authors would like to acknowledge the Cardinal Research Cluster (Supercomputing Facilities at the University of Louisville) for providing computational resources. The TURBOMOLE calculations were carried out in the Academic Computer Centre CYFRONET of the University of Science and Technology in Cracow, ACC CYFRONET AGH, Krakow, Poland, http://www.cyfronet.pl, under grant No. MNiSW/SGI3700/USlaski/111/2007 and MNiSW/IBM_BC_HS21/USlaski/111/2007. NR 122 TC 24 Z9 24 U1 8 U2 79 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0192-8651 J9 J COMPUT CHEM JI J. Comput. Chem. PD MAY 5 PY 2013 VL 34 IS 12 BP 987 EP 1004 DI 10.1002/jcc.23204 PG 18 WC Chemistry, Multidisciplinary SC Chemistry GA 119FB UT WOS:000317082100001 PM 23335227 ER PT J AU Chen, ZH Jiang, XW Li, JB Li, SS Wang, LW AF Chen, Zhanghui Jiang, Xiangwei Li, Jingbo Li, Shushen Wang, Linwang TI PDECO: Parallel differential evolution for clusters optimization SO JOURNAL OF COMPUTATIONAL CHEMISTRY LA English DT Article DE clusters; optimization; parallel differential evolution; platinum ID LENNARD-JONES CLUSTERS; LATTICE SEARCHING METHOD; INITIO MOLECULAR-DYNAMICS; GENETIC ALGORITHM; GLOBAL OPTIMIZATION; STRUCTURAL OPTIMIZATION; GEOMETRY OPTIMIZATION; PLATINUM CLUSTERS; STRUCTURE PREDICTION; CONSTRUCTED CORE AB The optimization of the atomic and molecular clusters with a large number of atoms is a very challenging topic. This article proposes a parallel differential evolution (DE) optimization scheme for large-scale clusters. It combines a modified DE algorithm with improved genetic operators and a parallel strategy with a migration operator to address the problems of numerous local optima and large computational demanding. Results of LennardJones (LJ) clusters and Gupta-potential Co clusters show the performance of the algorithm surpasses those in previous researches in terms of successful rate, convergent speed, and global searching ability. The overall performance for large or challenging LJ clusters is enhanced significantly. The average number of local minimizations per hit of the global minima for Co clusters is only about 34% of that in previous methods. Some global optima for Co are also updated. We then apply the algorithm to optimize the Pt clusters with Gupta potential from the size 3 to 130 and analyze their electronic properties by density functional theory calculation. The clusters with 13, 38, 54, 75, 108, and 125 atoms are extremely stable and can be taken as the magic numbers for Pt systems. It is interesting that the more stable structures, especially magic-number ones, tend to have a larger energy gap between the highest occupied molecular orbital and the lowest unoccupied molecular orbital. It is also found that the clusters are gradually close to the metal bulk from the size N > 80 and Pt38 is expected to be more active than Pt75 in catalytic reaction. (c) 2013 Wiley Periodicals, Inc. C1 [Chen, Zhanghui; Jiang, Xiangwei; Li, Jingbo; Li, Shushen] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China. [Wang, Linwang] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Chen, ZH (reprint author), Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, POB 912, Beijing 100083, Peoples R China. EM jbli@semi.ac.cn FU National Science Fund for Distinguished Young Scholar [60925016]; National Basic Research Program of China [2011CB921901]; National Natural Science Foundation of China [61106091]; Office of Science, Office of Basic Energy Sciences, Materials Science and Engineering Division, of the U.S. Department of Energy (DOE) [DEAC02-05CH11231]; China Scholarship Council FX Contract/grant sponsor: National Science Fund for Distinguished Young Scholar (to J.L.); Contract/grant numbers: 60925016; Contract/grant sponsor: National Basic Research Program of China; Contract/grant numbers: 2011CB921901; Contract/grant sponsor: National Natural Science Foundation of China (X.W.J.); Contract/grant number: 61106091; Contract/grant sponsor: Director, Office of Science, Office of Basic Energy Sciences, Materials Science and Engineering Division, of the U.S. Department of Energy (DOE) (to L. W. W.); Contract/grant number: DEAC02-05CH11231.; Z.H. Chen acknowledges the financial support of China Scholarship Council. We acknowledge the computing resources provided by the Supercomputing Center, Computer Network Information Center, Chinese Academy of Sciences. NR 93 TC 16 Z9 17 U1 5 U2 50 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0192-8651 EI 1096-987X J9 J COMPUT CHEM JI J. Comput. Chem. PD MAY 5 PY 2013 VL 34 IS 12 BP 1046 EP 1059 DI 10.1002/jcc.23235 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA 119FB UT WOS:000317082100006 PM 23483577 ER PT J AU Chung, D Cha, M Farkas, J Westpheling, J AF Chung, Daehwan Cha, Minseok Farkas, Joel Westpheling, Janet TI Construction of a Stable Replicating Shuttle Vector for Caldicellulosiruptor Species: Use for Extending Genetic Methodologies to Other Members of This Genus SO PLOS ONE LA English DT Article ID BESCII DSM 6725; PLANT BIOMASS; ANAEROCELLUM-THERMOPHILUM; SP-NOV.; CELLULOLYTIC BACTERIUM; ANAEROBIC BACTERIUM; PLASMID; TRANSFORMATION; ENZYMES; DECONSTRUCTION AB The recalcitrance of plant biomass is the most important barrier to its economic conversion by microbes to products of interest. Thermophiles have special advantages for biomass conversion and members of the genus Caldicellulosiruptor are the most thermophilic cellulolytic microbes known. In this study, we report the construction of a replicating shuttle vector for Caldicellulosiruptor species based on pBAS2, the smaller of two native C. bescii plasmids. The entire plasmid was cloned into an E. coli cloning vector containing a pSC101 origin of replication and an apramycin resistance cassette for selection in E. coli. The wild-type C. bescii pyrF locus was cloned under the transcriptional control of the regulatory region of the ribosomal protein S30EA (Cbes2105), and the resulting vector was transformed into a new spontaneous deletion mutant in the pyrFA locus of C. bescii that allowed complementation with the pyrF gene alone. Plasmid DNA was methylated in vitro with a recently described cognate methyltransferase, M. CbeI, and transformants were selected for uracil prototrophy. The plasmid was stably maintained in low copy with selection but rapidly lost without selection. There was no evidence of DNA rearrangement during transformation and replication in C. bescii. A similar approach was used to screen for transformability of other members of this genus using M. CbeI to overcome restriction as a barrier and was successful for transformation of C. hydrothermalis, an attractive species for many applications. Plasmids containing a carbohydrate binding domain (CBM) and linker region from the C. bescii celA gene were maintained with selection and were structurally stable through transformation and replication in C. bescii and E. coli. C1 [Chung, Daehwan; Cha, Minseok; Farkas, Joel; Westpheling, Janet] Univ Georgia, Dept Genet, Athens, GA 30602 USA. [Chung, Daehwan; Cha, Minseok; Farkas, Joel; Westpheling, Janet] Oak Ridge Natl Lab, Dept Energy, BioEnergy Sci Ctr, Oak Ridge, TN USA. RP Westpheling, J (reprint author), Univ Georgia, Dept Genet, Athens, GA 30602 USA. EM janwest@uga.edu FU United States Department of Energy Bioenergy Research Center; Office of Biological and Environmental Research in the DOE Office of Science; predoctoral Graduate Training in Genetics grant [NIH 5T32GM007103-30] FX The BioEnergy Science Center supported by a United States Department of Energy Bioenergy Research Center supported by the Office of Biological and Environmental Research in the DOE Office of Science. JF was supported in part by a predoctoral Graduate Training in Genetics grant (NIH 5T32GM007103-30) to the Genetics Department of the University of Georgia. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 38 TC 20 Z9 20 U1 0 U2 25 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD MAY 3 PY 2013 VL 8 IS 5 AR e62881 DI 10.1371/journal.pone.0062881 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 175AS UT WOS:000321202100044 PM 23658781 ER PT J AU Wang, YL Liu, YY Lu, J Zhang, PJ Wang, YS Xu, YY Wang, ZR Mao, JH Wei, GW AF Wang, Yuli Liu, Yueyong Lu, Jing Zhang, Pengju Wang, Yunshan Xu, Yangyang Wang, Zeran Mao, Jian-Hua Wei, Guangwei TI Rapamycin inhibits FBXW7 loss-induced epithelial-mesenchymal transition and cancer stem cell-like characteristics in colorectal cancer cells SO BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS LA English DT Article DE Fbxw7; Epithelial-mesenchymal transition; Cell migration and invasion; Cancer stem cell; Colorectal cancer ID INDUCED TUMOR-DEVELOPMENT; UBIQUITIN LIGASE; AURORA-A; FBW7; PROGRESSION; INSTABILITY; DEGRADATION; METASTASIS; SUPPRESSOR; MTOR AB Increased cell migration and invasion lead to cancer metastasis and are crucial to cancer prognosis. In this study, we explore whether FBXW7 plays any role in metastatic process. We show that depletion of FBXW7 induces epithelial-mesenchymal transition (EMT) in human colon cancer cells along with the increase in cell migration and invasion. Moreover, FBXW7 deficiency promotes the generation of colon cancer stem-like cells in tumor-sphere culture. mTOR inhibition by rapamycin suppresses FBXW7 loss-driven EMT, invasion and stemness. Our results define the FBXW7/mTOR axis as a novel EMT pathway that mediates cancer invasion. Published by Elsevier Inc. C1 [Wang, Yuli; Lu, Jing; Wang, Yunshan; Xu, Yangyang; Wei, Guangwei] Shandong Univ, Sch Med, Dept Anat, Minist Educ, Jinan 250012, Shandong, Peoples R China. [Wang, Yuli; Lu, Jing; Wang, Yunshan; Xu, Yangyang; Wei, Guangwei] Shandong Univ, Sch Med, Minist Educ, Key Lab Expt Teratol, Jinan 250012, Shandong, Peoples R China. [Liu, Yueyong; Zhang, Pengju; Wang, Zeran; Mao, Jian-Hua; Wei, Guangwei] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. [Zhang, Pengju] Shandong Univ, Sch Med, Dept Biochem & Mol Biol, Jinan 250012, Shandong, Peoples R China. RP Wei, GW (reprint author), Shandong Univ, Sch Med, Dept Anat, Minist Educ, Bldg 1,POB 68,44 Wenhua Xi Rd, Jinan 250012, Shandong, Peoples R China. EM JHMao@lbl.gov; gwwei@yahoo.com FU National Natural Science Foundation of China [81172528, 31271461]; Ministry of Education of China [20110131110035]; Shandong Provincial Natural Science Foundation, China [ZR2011HM034]; National Institutes of Health, National Cancer Institute grant [R01 CA116481]; Low Dose Scientific Focus Area, Office of Biological & Environmental Research, US Department of Energy [DE-AC02-05CH11231]; Laboratory Directed Research & Development Program (LDRD) FX We thank Dr. Bert Vogelstein for providing HCT116 and DLD-1 and their derivative FBXW7-/- cell lines. This work was supported by National Natural Science Foundation of China (grant numbers 81172528, 31271461 to G. W.); Doctoral Fund of Ministry of Education of China (grant number 20110131110035 to G. W.); Shandong Provincial Natural Science Foundation, China (grant number ZR2011HM034 to G. W.); by the National Institutes of Health, National Cancer Institute grant (grant number R01 CA116481 to J. H.M.); the Low Dose Scientific Focus Area, Office of Biological & Environmental Research, US Department of Energy (grant number DE-AC02-05CH11231 to J. H.M.); and Laboratory Directed Research & Development Program (LDRD) (to J. H.M.). NR 23 TC 20 Z9 20 U1 0 U2 9 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0006-291X J9 BIOCHEM BIOPH RES CO JI Biochem. Biophys. Res. Commun. PD MAY 3 PY 2013 VL 434 IS 2 BP 352 EP 356 DI 10.1016/j.bbrc.2013.03.077 PG 5 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA 146NW UT WOS:000319098800029 PM 23558291 ER PT J AU Aaltonen, T Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, JA Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Bae, T Barbaro-Galtieri, A Barnes, VE Barnett, BA Barria, P Bartos, P Bauce, M Bedeschi, F Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Bhatti, A Bland, KR Blumenfeld, B Bocci, A Bodek, A Bortoletto, D Boudreau, J Boveia, A Brigliadori, L Bromberg, C Brucken, E Budagov, J Budd, HS Burkett, K Busetto, G Bussey, P Butti, P Buzatu, A Calamba, A Camarda, S Campanelli, M Canelli, F Carls, B Carlsmith, D Carosi, R Carrillo, S Casal, B Casarsa, M Castro, A Catastini, P Cauz, D Cavaliere, V Cavalli-Sforza, M Cerri, A Cerrito, L Chen, YC Chertok, M Chiarelli, G Chlachidze, G Cho, K Chokheli, D Ciocci, MA Clark, A Clarke, C Convery, ME Conway, J Corbo, M Cordelli, M Cox, CA Cox, DJ Cremonesi, M Cruz, D Cuevas, J Culbertson, R d'Ascenzo, N Datta, M De Barbaro, P Demortier, L Deninno, M Devoto, F d'Errico, M Di Canto, A Di Ruzza, B Dittmann, JR D'Onofrio, M Donati, S Dorigo, M Driutti, A Ebina, K Edgar, R Elagin, A Erbacher, R Errede, S Esham, B Eusebi, R Farrington, S Ramos, JPF Field, R Flanagan, G Forrest, R Franklin, M Freeman, JC Frisch, H Funakoshi, Y Garfinkel, AF Garosi, P Gerberich, H Gerchtein, E Giagu, S Giakoumopoulou, V Gibson, K Ginsburg, CM Giokaris, N Giromini, P Giurgiu, G Glagolev, V Glenzinski, D Gold, M Goldin, D Golossanov, A Gomez, G Gomez-Ceballos, G Goncharov, M Lopez, OG Gorelov, I Goshaw, AT Goulianos, K Gramellini, E Grinstein, S Grosso-Pilcher, C Group, RC da Costa, JG Hahn, SR Han, JY Happacher, F Hara, K Hare, M Harr, RF Harrington-Taber, T Hatakeyama, K Hays, C Heinrich, J Herndon, M Hocker, A Hong, Z Hopkins, W Hou, S Hughes, RE Husemann, U Hussein, M Huston, J Introzzi, G Iori, M Ivanov, A James, E Jang, D Jayatilaka, B Jeon, EJ Jindariani, S Jones, M Joo, KK Jun, SY Junk, TR Kambeitz, M Kamon, T Karchin, PE Kasmi, A Kato, Y Ketchum, W Keung, J Kilminster, B Kim, DH Kim, HS Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kim, YJ Kimura, N Kirby, M Knoepfel, K Kondo, K Kong, DJ Konigsberg, J Kotwal, AV Kreps, M Kroll, J Kruse, M Kuhr, T Kurata, M Laasanen, AT Lammel, S Lancaster, M Lannon, K Latino, G Lee, HS Lee, JS Leo, S Leone, S Lewis, JD Limosani, A Lipeles, E Liu, H Liu, Q Liu, T Lockwitz, S Loginov, A Lucchesi, D Lueck, J Lujan, P Lukens, P Lungu, G Lys, J Lysak, R Madrak, R Maestro, P Malik, S Manca, G Manousakis-Katsikakis, A Margaroli, F Marino, P Martinez, M Matera, K Mattson, ME Mazzacane, A Mazzanti, P McNulty, R Mehta, A Mehtala, P Mesropian, C Miao, T Mietlicki, D Mitra, A Miyake, H Moed, S Moggi, N Moon, CS Moore, R Morello, MJ Mukherjee, A Muller, T Murat, P Mussini, M Nachtman, J Nagai, Y Naganoma, J Nakano, I Napier, A Nett, J Neu, C Nigmanov, T Nodulman, L Noh, SY Norniella, O Oakes, L Oh, SH Oh, YD Oksuzian, I Okusawa, T Orava, R Ortolan, L Pagliarone, C Palencia, E Palni, P Papadimitriou, V Parker, W Pauletta, G Paulini, M Paus, C Phillips, TJ Piacentino, G Pianori, E Pilot, J Pitts, K Plager, C Pondrom, L Poprocki, S Potamianos, K Prokoshin, F Pranko, A Ptohos, F Punzi, G Ranjan, N Fernandez, IR Renton, P Rescigno, M Riddick, T Rimondi, F Ristori, L Robson, A Rodriguez, T Rolli, S Ronzani, M Roser, R Rosner, JL Ruffini, F Ruiz, A Russ, J Rusu, V Safonov, A Sakumoto, WK Sakurai, Y Santi, L Sato, K Saveliev, V Savoy-Navarro, A Schlabach, P Schmidt, EE Schwarz, T Scodellaro, L Scuri, F Seidel, S Seiya, Y Semenov, A Sforza, F Shalhout, SZ Shears, T Shepard, PF Shimojima, M Shochet, M Shreyber-Tecker, I Simonenko, A Sinervo, P Sliwa, K Smith, JR Snider, FD Sorin, V Song, H Stancari, M Denis, RS Stelzer, B Stelzer-Chilton, O Stentz, D Strologas, J Sudo, Y Sukhanov, A Suslov, I Takemasa, K Takeuchi, Y Tang, J Tecchio, M Teng, PK Thom, J Thomson, E Thukral, V Toback, D Tokar, S Tollefson, K Tomura, T Tonelli, D Torre, S Torretta, D Totaro, P Trovato, M Ukegawa, F Uozumi, S Vazquez, F Velev, G Vellidis, C Vernieri, C Vidal, M Vilar, R Vizan, J Vogel, M Volpi, G Wagner, P Wallny, R Wang, SM Warburton, A Waters, D Wester, WC Whiteson, D Wicklund, AB Wilbur, S Williams, HH Wilson, JS Wilson, P Winer, BL Wittich, P Wolbers, S Wolfe, H Wright, T Wu, X Wu, Z Yamamoto, K Yamato, D Yang, T Yang, UK Yang, YC Yao, WM Yeh, GP Yi, K Yoh, J Yorita, K Yoshida, T Yu, GB Yu, I Zanetti, AM Zeng, Y Zhou, C Zucchelli, S AF Aaltonen, T. Amerio, S. Amidei, D. Anastassov, A. Annovi, A. Antos, J. Apollinari, G. Appel, J. A. Arisawa, T. Artikov, A. Asaadi, J. Ashmanskas, W. Auerbach, B. Aurisano, A. Azfar, F. Badgett, W. Bae, T. Barbaro-Galtieri, A. Barnes, V. E. Barnett, B. A. Barria, P. Bartos, P. Bauce, M. Bedeschi, F. Behari, S. Bellettini, G. Bellinger, J. Benjamin, D. Beretvas, A. Bhatti, A. Bland, K. R. Blumenfeld, B. Bocci, A. Bodek, A. Bortoletto, D. Boudreau, J. Boveia, A. Brigliadori, L. Bromberg, C. Brucken, E. Budagov, J. Budd, H. S. Burkett, K. Busetto, G. Bussey, P. Butti, P. Buzatu, A. Calamba, A. Camarda, S. Campanelli, M. Canelli, F. Carls, B. Carlsmith, D. Carosi, R. Carrillo, S. Casal, B. Casarsa, M. Castro, A. Catastini, P. Cauz, D. Cavaliere, V. Cavalli-Sforza, M. Cerri, A. Cerrito, L. Chen, Y. C. Chertok, M. Chiarelli, G. Chlachidze, G. Cho, K. Chokheli, D. Ciocci, M. A. Clark, A. Clarke, C. Convery, M. E. Conway, J. Corbo, M. Cordelli, M. Cox, C. A. Cox, D. J. Cremonesi, M. Cruz, D. Cuevas, J. Culbertson, R. d'Ascenzo, N. Datta, M. De Barbaro, P. Demortier, L. Deninno, M. Devoto, F. d'Errico, M. Di Canto, A. Di Ruzza, B. Dittmann, J. R. D'Onofrio, M. Donati, S. Dorigo, M. Driutti, A. Ebina, K. Edgar, R. Elagin, A. Erbacher, R. Errede, S. Esham, B. Eusebi, R. Farrington, S. Fernandez Ramos, J. P. Field, R. Flanagan, G. Forrest, R. Franklin, M. Freeman, J. C. Frisch, H. Funakoshi, Y. Garfinkel, A. F. Garosi, P. Gerberich, H. Gerchtein, E. Giagu, S. Giakoumopoulou, V. Gibson, K. Ginsburg, C. M. Giokaris, N. Giromini, P. Giurgiu, G. Glagolev, V. Glenzinski, D. Gold, M. Goldin, D. Golossanov, A. Gomez, G. Gomez-Ceballos, G. Goncharov, M. Gonzalez Lopez, O. Gorelov, I. Goshaw, A. T. Goulianos, K. Gramellini, E. Grinstein, S. Grosso-Pilcher, C. Group, R. C. Costa, J. Guimaraes da Hahn, S. R. Han, J. Y. Happacher, F. Hara, K. Hare, M. Harr, R. F. Harrington-Taber, T. Hatakeyama, K. Hays, C. Heinrich, J. Herndon, M. Hocker, A. Hong, Z. Hopkins, W. Hou, S. Hughes, R. E. Husemann, U. Hussein, M. Huston, J. Introzzi, G. Iori, M. Ivanov, A. James, E. Jang, D. Jayatilaka, B. Jeon, E. J. Jindariani, S. Jones, M. Joo, K. K. Jun, S. Y. Junk, T. R. Kambeitz, M. Kamon, T. Karchin, P. E. Kasmi, A. Kato, Y. Ketchum, W. Keung, J. Kilminster, B. Kim, D. H. Kim, H. S. Kim, J. E. Kim, M. J. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, Y. J. Kimura, N. Kirby, M. Knoepfel, K. Kondo, K. Kong, D. J. Konigsberg, J. Kotwal, A. V. Kreps, M. Kroll, J. Kruse, M. Kuhr, T. Kurata, M. Laasanen, A. T. Lammel, S. Lancaster, M. Lannon, K. Latino, G. Lee, H. S. Lee, J. S. Leo, S. Leone, S. Lewis, J. D. Limosani, A. Lipeles, E. Liu, H. Liu, Q. Liu, T. Lockwitz, S. Loginov, A. Lucchesi, D. Lueck, J. Lujan, P. Lukens, P. Lungu, G. Lys, J. Lysak, R. Madrak, R. Maestro, P. Malik, S. Manca, G. Manousakis-Katsikakis, A. Margaroli, F. Marino, P. Martinez, M. Matera, K. Mattson, M. E. Mazzacane, A. Mazzanti, P. McNulty, R. Mehta, A. Mehtala, P. Mesropian, C. Miao, T. Mietlicki, D. Mitra, A. Miyake, H. Moed, S. Moggi, N. Moon, C. S. Moore, R. Morello, M. J. Mukherjee, A. Muller, Th. Murat, P. Mussini, M. Nachtman, J. Nagai, Y. Naganoma, J. Nakano, I. Napier, A. Nett, J. Neu, C. Nigmanov, T. Nodulman, L. Noh, S. Y. Norniella, O. Oakes, L. Oh, S. H. Oh, Y. D. Oksuzian, I. Okusawa, T. Orava, R. Ortolan, L. Pagliarone, C. Palencia, E. Palni, P. Papadimitriou, V. Parker, W. Pauletta, G. Paulini, M. Paus, C. Phillips, T. J. Piacentino, G. Pianori, E. Pilot, J. Pitts, K. Plager, C. Pondrom, L. Poprocki, S. Potamianos, K. Prokoshin, F. Pranko, A. Ptohos, F. Punzi, G. Ranjan, N. Redondo Fernandez, I. Renton, P. Rescigno, M. Riddick, T. Rimondi, F. Ristori, L. Robson, A. Rodriguez, T. Rolli, S. Ronzani, M. Roser, R. Rosner, J. L. Ruffini, F. Ruiz, A. Russ, J. Rusu, V. Safonov, A. Sakumoto, W. K. Sakurai, Y. Santi, L. Sato, K. Saveliev, V. Savoy-Navarro, A. Schlabach, P. Schmidt, E. E. Schwarz, T. Scodellaro, L. Scuri, F. Seidel, S. Seiya, Y. Semenov, A. Sforza, F. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shochet, M. Shreyber-Tecker, I. Simonenko, A. Sinervo, P. Sliwa, K. Smith, J. R. Snider, F. D. Sorin, V. Song, H. Stancari, M. Denis, R. St. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Sudo, Y. Sukhanov, A. Suslov, I. Takemasa, K. Takeuchi, Y. Tang, J. Tecchio, M. Teng, P. K. Thom, J. Thomson, E. Thukral, V. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Trovato, M. Ukegawa, F. Uozumi, S. Vazquez, F. Velev, G. Vellidis, C. Vernieri, C. Vidal, M. Vilar, R. Vizan, J. Vogel, M. Volpi, G. Wagner, P. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Wester, W. C., III Whiteson, D. Wicklund, A. B. Wilbur, S. Williams, H. H. Wilson, J. S. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, H. Wright, T. Wu, X. Wu, Z. Yamamoto, K. Yamato, D. Yang, T. Yang, U. K. Yang, Y. C. Yao, W. -M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Zanetti, A. M. Zeng, Y. Zhou, C. Zucchelli, S. TI Measurement of the top quark forward-backward production asymmetry and its dependence on event kinematic properties SO PHYSICAL REVIEW D LA English DT Article ID CHARGE ASYMMETRY; ROOT-S=7 TEV; COLLISIONS; DETECTOR AB We present new measurements of the inclusive forward-backward t (y) over bar production asymmetry, A(FB), and its dependence on several properties of the t (t) over bar system. The measurements are performed with the full Tevatron data set recorded with the CDF II detector during p (p) over bar collisions at root s = 1.96 TeV, corresponding to an integrated luminosity of 9.4 fb(-1). We measure the asymmetry using the rapidity difference Delta y = y(t) - y((t) over bar) Parton-level results are derived, yielding an inclusive asymmetry of 0.164 +/- 0.047(stat + syst). We establish an approximately linear dependence of AFB on the top-quark pair mass M-t (t) over bar and the rapidity difference vertical bar Delta y vertical bar at detector and parton levels. Assuming the standard model, the probabilities to observe the measured values or larger for the detector-level dependencies are 7.4 x 10(-3) and 2.2 x 10(-3) for M-tt and vertical bar Delta y vertical bar respectively. Lastly, we study the dependence of the asymmetry on the transverse momentum of the t (t) over bar system at the detector level. These results are consistent with previous lower-precision measurements and provide additional quantification of the functional dependencies of the asymmetry. C1 [Chen, Y. C.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan. [Auerbach, B.; Nodulman, L.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA. [Giakoumopoulou, V.; Giokaris, N.; Manousakis-Katsikakis, A.] Univ Athens, GR-15771 Athens, Greece. [Camarda, S.; Cavalli-Sforza, M.; Grinstein, S.; Martinez, M.; Ortolan, L.; Sorin, V.] Univ Autonoma Barcelona, ICREA, Inst Fis Altes Energies, E-08193 Bellaterra, Barcelona, Spain. [Bland, K. R.; Dittmann, J. R.; Hatakeyama, K.; Kasmi, A.; Wu, Z.] Baylor Univ, Waco, TX 76798 USA. [Brigliadori, L.; Castro, A.; Deninno, M.; Mazzacane, A.; Mussini, M.; Rimondi, F.; Zucchelli, S.] Ist Nazl Fis Nucl, I-40127 Bologna, Italy. [Brigliadori, L.; Castro, A.; Mussini, M.; Zucchelli, S.] Univ Bologna, I-40127 Bologna, Italy. [Chertok, M.; Conway, J.; Cox, C. A.; Cox, D. J.; Erbacher, R.; Forrest, R.; Ivanov, A.; Shalhout, S. Z.; Smith, J. R.] Univ Calif Davis, Davis, CA 95616 USA. [Plager, C.; Wallny, R.] Univ Calif Los Angeles, Los Angeles, CA 90024 USA. [Casal, B.; Cuevas, J.; Gomez, G.; Palencia, E.; Ruiz, A.; Scodellaro, L.; Vilar, R.; Vizan, J.] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain. [Calamba, A.; Jang, D.; Jun, S. Y.; Paulini, M.; Russ, J.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Boveia, A.; Canelli, F.; Frisch, H.; Grosso-Pilcher, C.; Ketchum, W.; Kim, Y. K.; Rosner, J. L.; Tang, J.; Wilbur, S.; Yang, U. K.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Antos, J.; Bartos, P.; Lysak, R.; Tokar, S.] Comenius Univ, Bratislava 84248, Slovakia. [Antos, J.; Bartos, P.; Lysak, R.; Tokar, S.] Slovak Acad Sci, Inst Expt Phys, Kosice 04001, Slovakia. [Artikov, A.; Budagov, J.; Chokheli, D.; Glagolev, V.; Prokoshin, F.; Semenov, A.; Simonenko, A.; Suslov, I.] Joint Inst Nucl Res, RU-141980 Dubna, Russia. [Benjamin, D.; Bocci, A.; Goshaw, A. T.; Kotwal, A. V.; Kruse, M.; Limosani, A.; Oh, S. H.; Phillips, T. J.; Yu, G. B.; Zeng, Y.; Zhou, C.] Duke Univ, Durham, NC 27708 USA. [Anastassov, A.; Apollinari, G.; Appel, J. A.; Ashmanskas, W.; Badgett, W.; Behari, S.; Beretvas, A.; Burkett, K.; Canelli, F.; Chlachidze, G.; Convery, M. E.; Corbo, M.; Culbertson, R.; d'Ascenzo, N.; Datta, M.; Di Ruzza, B.; Flanagan, G.; Freeman, J. C.; Gerchtein, E.; Golossanov, A.; Group, R. C.; Hahn, S. R.; Harrington-Taber, T.; Hocker, A.; James, E.; Jayatilaka, B.; Jindariani, S.; Junk, T. R.; Kilminster, B.; Kirby, M.; Knoepfel, K.; Lammel, S.; Lewis, J. D.; Liu, T.; Lukens, P.; Madrak, R.; Mazzacane, A.; Miao, T.; Moed, S.; Moon, C. S.; Moore, R.; Mukherjee, A.; Murat, P.; Nachtman, J.; Papadimitriou, V.; Poprocki, S.; Ristori, L.; Roser, R.; Rusu, V.; Saveliev, V.; Savoy-Navarro, A.; Schlabach, P.; Schmidt, E. E.; Snider, F. D.; Stancari, M.; Stentz, D.; Sukhanov, A.; Thom, J.; Tonelli, D.; Torretta, D.; Velev, G.; Vellidis, C.; Wester, W. C., III; Wilson, P.; Wittich, P.; Wolbers, S.; Yang, T.; Yeh, G. P.; Yi, K.; Yoh, J.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Carrillo, S.; Field, R.; Konigsberg, J.; Vazquez, F.] Univ Florida, Gainesville, FL 32611 USA. [Annovi, A.; Cordelli, M.; Giromini, P.; Happacher, F.; Kim, M. J.; Ptohos, F.; Torre, S.; Volpi, G.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Clark, A.; Wu, X.] Univ Geneva, CH-1211 Geneva 4, Switzerland. [Bussey, P.; Buzatu, A.; Robson, A.; Denis, R. 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A.; Cremonesi, M.; Di Canto, A.; Donati, S.; Introzzi, G.; Maestro, P.; Marino, P.; Morello, M. J.; Piacentino, G.; Punzi, G.; Ristori, L.] Ist Nazl Fis Nucl, I-56127 Pisa, Italy. [Bellettini, G.; Butti, P.; Di Canto, A.; Donati, S.; Punzi, G.; Ronzani, M.; Sforza, F.] Univ Pisa, I-56127 Pisa, Italy. [Barria, P.; Ciocci, M. A.; Garosi, P.; Maestro, P.] Univ Siena, I-56127 Pisa, Italy. [Marino, P.; Morello, M. J.; Trovato, M.; Vernieri, C.] Scuola Normale Super Pisa, I-56127 Pisa, Italy. [Introzzi, G.] Ist Nazl Fis Nucl, I-27100 Pavia, Italy. [Introzzi, G.] Univ Pavia, I-27100 Pavia, Italy. [Boudreau, J.; Gibson, K.; Nigmanov, T.; Shepard, P. F.; Song, H.] Univ Pittsburgh, Pittsburgh, PA 15260 USA. [Barnes, V. E.; Bortoletto, D.; Garfinkel, A. F.; Jones, M.; Laasanen, A. T.; Liu, Q.; Ranjan, N.; Vidal, M.] Purdue Univ, W Lafayette, IN 47907 USA. [Bodek, A.; Budd, H. S.; De Barbaro, P.; Han, J. Y.; Sakumoto, W. K.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Demortier, L.; Goulianos, K.; Lungu, G.; Malik, S.; Mesropian, C.] Rockefeller Univ, New York, NY 10065 USA. [Iori, M.; Margaroli, F.; Rescigno, M.] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy. [Iori, M.] Univ Roma La Sapienza, I-00185 Rome, Italy. [Asaadi, J.; Aurisano, A.; Cruz, D.; Elagin, A.; Eusebi, R.; Goldin, D.; Hong, Z.; Kamon, T.; Nett, J.; Safonov, A.; Thukral, V.; Toback, D.] Texas A&M Univ, College Stn, TX 77843 USA. [Casarsa, M.; Cauz, D.; Dorigo, M.; Pauletta, G.; Santi, L.; Zanetti, A. M.] Ist Nazl Fis Nucl Trieste Udine, I-34127 Trieste, Italy. [Dorigo, M.; Pauletta, G.; Santi, L.] Univ Trieste, I-34127 Trieste, Italy. [Pagliarone, C.] Univ Udine, I-33100 Udine, Italy. [Hara, K.; Kim, S. H.; Kurata, M.; Miyake, H.; Nagai, Y.; Sato, K.; Shimojima, M.; Sudo, Y.; Takemasa, K.; Tomura, T.; Ukegawa, F.] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan. [Hare, M.; Napier, A.; Rolli, S.; Sliwa, K.] Tufts Univ, Medford, MA 02155 USA. [Liu, H.; Neu, C.; Okusawa, T.] Univ Virginia, Charlottesville, VA 22906 USA. [Arisawa, T.; Ebina, K.; Funakoshi, Y.; Kimura, N.; Kondo, K.; Naganoma, J.; Sakurai, Y.; Yorita, K.] Waseda Univ, Tokyo 169, Japan. [Clarke, C.; Harr, R. F.; Karchin, P. E.; Mattson, M. E.] Wayne State Univ, Detroit, MI 48201 USA. [Bellinger, J.; Carlsmith, D.; Herndon, M.; Parker, W.; Pondrom, L.] Univ Wisconsin, Madison, WI 53706 USA. [Husemann, U.; Lockwitz, S.; Loginov, A.] Yale Univ, New Haven, CT 06520 USA. RP Aaltonen, T (reprint author), Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland. RI vilar, rocio/P-8480-2014; ciocci, maria agnese /I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Prokoshin, Fedor/E-2795-2012; Introzzi, Gianluca/K-2497-2015; Piacentino, Giovanni/K-3269-2015; Marino, Pietro/N-7030-2015; song, hao/I-2782-2012; Gorelov, Igor/J-9010-2015; Russ, James/P-3092-2014; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Robson, Aidan/G-1087-2011; maestro, paolo/E-3280-2010; Chiarelli, Giorgio/E-8953-2012; Lysak, Roman/H-2995-2014; Moon, Chang-Seong/J-3619-2014; Scodellaro, Luca/K-9091-2014; Punzi, Giovanni/J-4947-2012; Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; OI ciocci, maria agnese /0000-0003-0002-5462; Prokoshin, Fedor/0000-0001-6389-5399; Introzzi, Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924; Marino, Pietro/0000-0003-0554-3066; song, hao/0000-0002-3134-782X; Gorelov, Igor/0000-0001-5570-0133; Russ, James/0000-0001-9856-9155; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; maestro, paolo/0000-0002-4193-1288; Chiarelli, Giorgio/0000-0001-9851-4816; Moon, Chang-Seong/0000-0001-8229-7829; Scodellaro, Luca/0000-0002-4974-8330; Punzi, Giovanni/0000-0002-8346-9052; Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Group, Robert/0000-0002-4097-5254; iori, maurizio/0000-0002-6349-0380; Vidal Marono, Miguel/0000-0002-2590-5987; Hays, Chris/0000-0003-2371-9723; Farrington, Sinead/0000-0001-5350-9271; Robson, Aidan/0000-0002-1659-8284; Dorigo, Mirco/0000-0002-0681-6946; Brucken, Jens Erik/0000-0001-6066-8756; Torre, Stefano/0000-0002-7565-0118; Toback, David/0000-0003-3457-4144; Jun, Soon Yung/0000-0003-3370-6109; Latino, Giuseppe/0000-0002-4098-3502; Margaroli, Fabrizio/0000-0002-3869-0153; Simonenko, Alexander/0000-0001-6580-3638; Lancaster, Mark/0000-0002-8872-7292; Casarsa, Massimo/0000-0002-1353-8964 FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A. P. Sloan Foundation; Bundesministerium fur Bildung und Forschung, Germany; Korean World Class University Program; National Research Foundation of Korea; Science and Technology Facilities Council; Royal Society, UK; Russian Foundation for Basic Research; Ministerio de Ciencia e Innovacion; Programa Consolider-Ingenio, Spain; Slovak RD Agency; Academy of Finland; Australian Research Council (ARC) FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium fur Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC). NR 43 TC 41 Z9 41 U1 3 U2 31 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 3 PY 2013 VL 87 IS 9 AR 092002 DI 10.1103/PhysRevD.87.092002 PG 23 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 145FG UT WOS:000318999600002 ER PT J AU Pathak, AK Paudyal, D Mudryk, Y Gschneidner, KA Pecharsky, VK AF Pathak, Arjun K. Paudyal, D. Mudryk, Y. Gschneidner, K. A., Jr. Pecharsky, V. K. TI Anomalous Schottky Specific Heat and Structural Distortion in Ferromagnetic PrAl2 SO PHYSICAL REVIEW LETTERS LA English DT Article ID 4 DEGREES K; CONDUCTION-ELECTRON-EXCHANGE; INTERMETALLIC COMPOUNDS; MAGNETIC-PROPERTIES; SINGLE-CRYSTALS; FIELD; METAL; TRANSITION; GADOLINIUM; ANISOTROPY AB Unique from other rare earth dialuminides, PrAl2 undergoes a cubic to tetragonal distortion below T = 30 K in a zero magnetic field, but the system recovers its cubic symmetry upon the application of an external magnetic field of 10 kOe via a lifting of the 4f crystal field splitting. The nuclear Schottky specific heat in PrAl2 is anomalously high compared to that of pure Pr metal. First principles calculations reveal that the 4f crystal field splitting in the tetragonally distorted phase of PrAl2 underpins the observed unusual low temperature phenomena. C1 [Pathak, Arjun K.; Paudyal, D.; Mudryk, Y.; Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, US Dept Energy, Ames Lab, Ames, IA 50011 USA. [Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. RP Pathak, AK (reprint author), Iowa State Univ, US Dept Energy, Ames Lab, Ames, IA 50011 USA. EM pathak138@ameslab.gov FU Office of Basic Energy Sciences, Division of Material Sciences and Engineering of the U.S. Department of Energy [DE-AC02-07CH11358]; Iowa State University FX This work was supported by the Office of Basic Energy Sciences, Division of Material Sciences and Engineering of the U.S. Department of Energy under Contract No. DE-AC02-07CH11358 with Iowa State University. NR 47 TC 13 Z9 13 U1 2 U2 34 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 3 PY 2013 VL 110 IS 18 AR 186405 DI 10.1103/PhysRevLett.110.186405 PG 5 WC Physics, Multidisciplinary SC Physics GA 145MU UT WOS:000319021100010 PM 23683228 ER PT J AU Wu, M Beckham, GT Larsson, AM Ishida, T Kim, S Payne, CM Himmel, ME Crowley, MF Horn, SJ Westereng, B Igarashi, K Samejima, M Stahlberg, J Eijsink, VGH Sandgren, M AF Wu, Miao Beckham, Gregg T. Larsson, Anna M. Ishida, Takuya Kim, Seonah Payne, Christina M. Himmel, Michael E. Crowley, Michael F. Horn, Svein J. Westereng, Bjorge Igarashi, Kiyohiko Samejima, Masahiro Stahlberg, Jerry Eijsink, Vincent G. H. Sandgren, Mats TI Crystal Structure and Computational Characterization of the Lytic Polysaccharide Monooxygenase GH61D from the Basidiomycota Fungus Phanerochaete chrysosporium SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID CARBOHYDRATE-BINDING MODULE; GLYCOSIDE HYDROLASE FAMILY; PROTEIN-STRUCTURE REFINEMENT; CELLOBIOSE DEHYDROGENASE; LIGNOCELLULOSIC BIOMASS; TRICHODERMA-REESEI; SERRATIA-MARCESCENS; ANGSTROM RESOLUTION; CELLULOSE; ENZYMES AB Carbohydrate structures are modified and degraded in the biosphere by a myriad of mostly hydrolytic enzymes. Recently, lytic polysaccharide mono-oxygenases (LPMOs) were discovered as a new class of enzymes for cleavage of recalcitrant polysaccharides that instead employ an oxidative mechanism. LPMOs employ copper as the catalytic metal and are dependent on oxygen and reducing agents for activity. LPMOs are found in many fungi and bacteria, but to date no basidiomycete LPMO has been structurally characterized. Here we present the three-dimensional crystal structure of the basidiomycete Phanerochaete chrysosporium GH61D LPMO, and, for the first time, measure the product distribution ofLPMOaction on a lignocellulosic substrate. The structure reveals a copper-bound active site common to LPMOs, a collection of aromatic and polar residues near the binding surface that may be responsible for regioselectivity, and substantial differences in loop structures near the binding face compared with other LPMO structures. The activity assays indicate that this LPMO primarily produces aldonic acids. Last, molecular simulations reveal conformational changes, including the binding of several regions to the cellulose surface, leading to alignment of three tyrosine residues on the binding face of the enzyme with individual cellulose chains, similar to what has been observed for family 1 carbohydrate-binding modules. A calculated potential energy surface for surface translation indicates that P. chrysosporium GH61D exhibits energy wells whose spacing seems adapted to the spacing of cellobiose units along a cellulose chain. C1 [Wu, Miao; Larsson, Anna M.; Stahlberg, Jerry; Sandgren, Mats] Swedish Univ Agr Sci, Dept Mol Biol, SE-75007 Uppsala, Sweden. [Beckham, Gregg T.; Kim, Seonah] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Payne, Christina M.; Himmel, Michael E.; Crowley, Michael F.] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. [Beckham, Gregg T.] Colorado Sch Mines, Dept Chem Engn, Golden, CO 80401 USA. [Ishida, Takuya; Igarashi, Kiyohiko; Samejima, Masahiro] Univ Tokyo, Grad Sch Agr & Life Sci, Dept Biomat Sci, Bunkyo Ku, Tokyo 1138657, Japan. [Payne, Christina M.] Univ Kentucky, Dept Chem & Mat Engn, Lexington, KY 40506 USA. [Horn, Svein J.; Westereng, Bjorge] Norwegian Univ Life Sci, Dept Chem Biotechnol & Food Sci, N-1432 As, Norway. RP Beckham, GT (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. EM gregg.beckham@nrel.gov; mats.sandgren@slu.se RI crowley, michael/A-4852-2013; Horn, Svein Jarle/C-6258-2008; Stahlberg, Jerry/D-4163-2013; Payne, Christina/C-7338-2011; Igarashi, Kiyohiko/E-6799-2016; Westereng, Bjorge/A-1688-2013 OI crowley, michael/0000-0001-5163-9398; Horn, Svein Jarle/0000-0002-1590-9001; Stahlberg, Jerry/0000-0003-4059-8580; Payne, Christina/0000-0001-5264-0964; Igarashi, Kiyohiko/0000-0001-5152-7177; Westereng, Bjorge/0000-0002-5141-7231 FU Faculty for Natural Resources and Agriculture at the Swedish University of Agricultural Sciences through the research program MicroDrivE; Japan Society for the Promotion of Science (JSPS); Department of Energy Office of the Biomass Program; Norwegian Research Council [218425, 193817, 196885, 214613]; Advanced Low Carbon Technology Research and Development Program of the Japan Science and Technology Agency FX This work was supported in part by the Faculty for Natural Resources and Agriculture at the Swedish University of Agricultural Sciences through the research program MicroDrivE and by the Japan Society for the Promotion of Science (JSPS) through a fellowship (to T.I.).; Supported by the Department of Energy Office of the Biomass Program.; Supported by Norwegian Research Council Grant 218425.; Supported in part by Norwegian Research Council Grants 193817, 196885, and 214613.; Supported by the Advanced Low Carbon Technology Research and Development Program of the Japan Science and Technology Agency. NR 73 TC 54 Z9 55 U1 5 U2 98 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA SN 0021-9258 J9 J BIOL CHEM JI J. Biol. Chem. PD MAY 3 PY 2013 VL 288 IS 18 BP 12828 EP 12839 DI 10.1074/jbc.M113.459396 PG 12 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 139AZ UT WOS:000318555100038 PM 23525113 ER PT J AU Kohzuma, K Dal Bosco, C Meurer, J Kramer, DM AF Kohzuma, Kaori Dal Bosco, Cristina Meurer, Joerg Kramer, David M. TI Light- and Metabolism-related Regulation of the Chloroplast ATP Synthase Has Distinct Mechanisms and Functions SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID COUPLING FACTOR ACTIVITY; CYCLIC ELECTRON FLOW; GAMMA-SUBUNIT; ARABIDOPSIS-THALIANA; INVERSE REGULATION; THIOL MODULATION; IN-VIVO; PHOTOSYNTHESIS; MUTATION; PLANTS AB The chloroplast CF0-CF1-ATP synthase (ATP synthase) is activated in the light and inactivated in the dark by thioredoxin-mediated redox modulation of a disulfide bridge on its gamma subunit. The activity of the ATP synthase is also fine-tuned during steady-state photosynthesis in response to metabolic changes, e.g. altering CO2 levels to adjust the thylakoid proton gradient and thus the regulation of light harvesting and electron transfer. The mechanism of this fine-tuning is unknown. We test here the possibility that it also involves redox modulation. We found that modifying the Arabidopsis thaliana gamma subunit by mutating three highly conserved acidic amino acids, D211V, E212L, and E226L, resulted in a mutant, termed mothra, in which ATP synthase which lacked light-dark regulation had relatively small effects on maximal activity in vivo. In situ equilibrium redox titrations and thiol redox-sensitive labeling studies showed that the gamma subunit disulfide/sulfhydryl couple in the modified ATP synthase has a more reducing redox potential and thus remains predominantly oxidized under physiological conditions, implying that the highly conserved acidic residues in the gamma subunit influence thiol redox potential. In contrast to its altered light-dark regulation, mothra retained wild-type fine-tuning of ATP synthase activity in response to changes in ambient CO2 concentrations, indicating that the light-dark- and metabolic-related regulation occur through different mechanisms, possibly via small molecule allosteric effectors or covalent modification. C1 [Kohzuma, Kaori; Kramer, David M.] Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA. [Dal Bosco, Cristina; Meurer, Joerg] Univ Munich, Dept Biol 1, D-82152 Planegg Martinsried, Germany. [Dal Bosco, Cristina] Univ Freiburg, Fac Biol, Inst Biol Bot 2, D-79104 Freiburg, Germany. RP Kramer, DM (reprint author), Michigan State Univ, MSU DOE Plant Res Lab, 612 Wilson Rd,Rm S220, E Lansing, MI 48824 USA. EM kramerd8@msu.edu RI Kohzuma, Kaori/N-6161-2014; Meurer, Jorg/F-8479-2010; OI Meurer, Jorg/0000-0003-2973-9514; Dal Bosco, Cristina/0000-0002-0280-5369 FU United States Department of Energy, Office of Science, Basic Energy Sciences Program [DE-FG02-91ER20021]; Deutsche Forschungsgemeinschaft; Deutsche Forschungsgemeinschaft [SFB TR1] FX This work was supported by United States Department of Energy, Office of Science, Basic Energy Sciences Program DE-FG02-91ER20021 (to K. K. and D. M. K.), the Deutsche Forschungsgemeinschaft (to C. D. B.), and Deutsche Forschungsgemeinschaft (SFB TR1) (to J. M.). NR 42 TC 19 Z9 19 U1 1 U2 27 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA SN 0021-9258 J9 J BIOL CHEM JI J. Biol. Chem. PD MAY 3 PY 2013 VL 288 IS 18 BP 13156 EP 13163 DI 10.1074/jbc.M113.453225 PG 8 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 139AZ UT WOS:000318555100065 PM 23486473 ER PT J AU Rusev, G Jandel, M Krticka, M Bredeweg, TA Couture, A Taddeucci, TN Ullmann, JL AF Rusev, G. Jandel, M. Krticka, M. Bredeweg, T. A. Couture, A. Taddeucci, T. N. Ullmann, J. L. TI gamma-ray cascade transitions in Cd-112 and Cd-114 following resonance capture of epithermal neutrons SO PHYSICAL REVIEW C LA English DT Article ID GIANT-DIPOLE RESONANCE; DANCE ARRAY; NUCLEI; WIDTH; FLUCTUATIONS; SCATTERING; SIMULATION AB Cascades of gamma-ray transitions in Cd-112 and Cd-114 have been studied in a neutron-capture experiment at the Los Alamos Neutron Science Center using a highly segmented and highly efficient gamma-ray calorimeter-Detector for Advanced Neutron Capture Experiments. Intensity distributions of two-, three-, and multifold coincidence gamma-ray transitions de-exciting resonances with known angular momenta and terminating at the ground state and at the first excited levels have been obtained. The results are compared with statistical-model calculations using the code DICEBOX for the two theoretical models of electric-dipole photon-strength functions, the standard Lorentzian and the model of Kadmenskii, Markushev, and Furman. It has been found that a combination of the two models reproduces the data best. Adding resonance structures, such as the scissors mode and the pygmy resonance, to the photon-strength function do not improve the description of the gamma-ray spectra. C1 [Rusev, G.; Jandel, M.; Bredeweg, T. A.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Krticka, M.] Charles Univ Prague, Fac Math & Phys, CR-18000 Prague 8, Czech Republic. [Couture, A.; Taddeucci, T. N.; Ullmann, J. L.] Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. RP Rusev, G (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA. OI Rusev, Gencho/0000-0001-7563-1518 FU NNSA Office of Nonproliferation and Verification Research and Development under the US Department of Energy [DE-AC52-06NA25396]; Czech Science Foundation [13-07117S]; Ministry of Education [MSM 0021620859] FX This work benefited from the use of the LANSCE facility and the Manuel J. Lujan, Jr. Neutron Scattering Center. The work has been supported by the NNSA Office of Nonproliferation and Verification Research and Development performed under the US Department of Energy Contract No. DE-AC52-06NA25396. M. K. acknowledges the support from the Czech Science Foundation under Grant No. 13-07117S and research plan No. MSM 0021620859 of the Ministry of Education. NR 48 TC 8 Z9 8 U1 0 U2 10 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD MAY 3 PY 2013 VL 87 IS 5 AR 054603 DI 10.1103/PhysRevC.87.054603 PG 14 WC Physics, Nuclear SC Physics GA 138RZ UT WOS:000318527400003 ER PT J AU Dahal, HP Bedell, KS AF Dahal, Hari P. Bedell, Kevin S. TI Effective spin diffusion in spin-polarized equilibrium and quasiequilibrium Fermi liquids SO PHYSICAL REVIEW B LA English DT Article ID BOSE-EINSTEIN CONDENSATION; ATOMS; GAS; ECHOES; WAVES; HE-3; HE3 AB We calculate the effective spin diffusion coefficient of weak ferromagnet and quasiequilibrium paramagnetic systems using Landau Fermi liquid theory. We find that the behavior of the diffusion coefficient of the quasiequilibrium system is determined primarily by the internal magnetic field, which, in turn, depends upon the nonequilibrium magnetization and the antisymmetric Landau parameters. We also show that this is qualitatively similar to the diffusion coefficient of the weak ferromagnetic system. We discuss its implication for the spin-polarized state created in cold atom systems. C1 [Dahal, Hari P.; Bedell, Kevin S.] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA. [Dahal, Hari P.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Dahal, Hari P.] Los Alamos Natl Lab, CINT, Los Alamos, NM 87544 USA. RP Dahal, HP (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA. NR 18 TC 1 Z9 1 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 3 PY 2013 VL 87 IS 17 AR 174406 DI 10.1103/PhysRevB.87.174406 PG 5 WC Physics, Condensed Matter SC Physics GA 138LE UT WOS:000318509300003 ER PT J AU Karrasch, C Schuricht, D AF Karrasch, C. Schuricht, D. TI Dynamical phase transitions after quenches in nonintegrable models SO PHYSICAL REVIEW B LA English DT Article ID DENSITY-MATRIX RENORMALIZATION; MAGNETIC-FIELD; ANNNI MODEL; ISING-MODEL; STATES; ENERGY AB We investigate the dynamics following sudden quenches across quantum critical points belonging to different universality classes. Specifically, we use matrix product state methods to study the quantum Ising chain in the presence of two additional terms which break integrability. We find that in all models the rate function for the return probability to the initial state becomes a nonanalytic function of time in the thermodynamic limit. This so-called "dynamical phase transition" was first observed in a recent work by Heyl, Polkovnikov, and Kehrein [Phys. Rev. Lett. 110, 135704 (2013)] for the exactly-solvable quantum Ising chain, which can be mapped to free fermions. Our results for "interacting theories" indicate that nonanalytic dynamics is a generic feature of sudden quenches across quantum critical points. We discuss potential connections to the dynamics of the order parameter. C1 [Karrasch, C.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 95720 USA. [Karrasch, C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Schuricht, D.] Rhein Westfal TH Aachen, Inst Theory Stat Phys, D-52056 Aachen, Germany. [Schuricht, D.] JARA Fundamentals Future Informat Technol, D-52056 Aachen, Germany. RP Karrasch, C (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 95720 USA. RI Schuricht, Dirk /B-5549-2012; Karrasch, Christoph/S-5716-2016 OI Schuricht, Dirk /0000-0002-5255-780X; Karrasch, Christoph/0000-0002-6475-3584 FU DFG [KA 3360-1/1]; Emmy-Noether program [SCHU 2333/2-1]; Nanostructured Thermoelectrics program of LBNL FX We thank Fabian Essler, Markus Heyl, Stefan Kehrein, Volker Meden, and Giuseppe Mussardo for useful comments and discussions. This work was supported by the DFG via KA 3360-1/1 (C.K.) and the Emmy-Noether program under SCHU 2333/2-1 (D.S.) as well as by the Nanostructured Thermoelectrics program of LBNL (C.K.). NR 49 TC 40 Z9 40 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 3 PY 2013 VL 87 IS 19 AR 195104 DI 10.1103/PhysRevB.87.195104 PG 8 WC Physics, Condensed Matter SC Physics GA 138OZ UT WOS:000318519300002 ER PT J AU Zhang, ZF Wierschem, K Yap, I Kato, Y Batista, CD Sengupta, P AF Zhang, Zhifeng Wierschem, Keola Yap, Ian Kato, Yasuyuki Batista, Cristian D. Sengupta, Pinaki TI Phase diagram and magnetic excitations of anisotropic spin-one magnets SO PHYSICAL REVIEW B LA English DT Article ID FIELD-THEORY; QUANTUM; Y2BANIO5; SYSTEMS; STATE; ANTIFERROMAGNET; THERMODYNAMICS; DEFECTS; CHAINS; MODEL AB We use a generalized spin-wave approach and large-scale quantum Monte Carlo (QMC) simulations to study the quantum phase diagram and quasiparticle excitations of the S = 1 Heisenberg model with an easy-plane single-ion anisotropy in dimensions d = 2 and 3. We consider two alternative approximations for describing the quantum paramagnetic state: the standard Holstein-Primakoff approximation and a modified treatment in which the local constraint (finite dimension of the local Hilbert space) is enforced by introducing a Lagrange multiplier. While both approximations produce qualitatively similar results, the latter approach is the only one that is in good quantitative agreement with the quantum phase diagram and the quasiparticle dispersions obtained with QMC. This result is very important for low-temperature studies of quantum paramagnets in magnetic fields because it shows that a simple modification of the standard analytical approach should produce much better quantitative agreement between theory and experiment. C1 [Zhang, Zhifeng; Wierschem, Keola; Yap, Ian; Sengupta, Pinaki] Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 639798, Singapore. [Kato, Yasuyuki; Batista, Cristian D.] Los Alamos Natl Lab, Div T, Los Alamos, NM 87545 USA. [Kato, Yasuyuki; Batista, Cristian D.] Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA. [Kato, Yasuyuki] RIKEN Ctr Emergent Matter Sci, Wako, Saitama 3510198, Japan. RP Zhang, ZF (reprint author), Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 639798, Singapore. RI Sengupta, Pinaki/B-6999-2011; Batista, Cristian/J-8008-2016 FU Office of Science of the US Department of Energy [DE-AC02-05CH11231] FX The numerical results were obtained in part using the computational resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the US Department of Energy under Contract No. DE-AC02-05CH11231. NR 57 TC 15 Z9 15 U1 0 U2 16 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 3 PY 2013 VL 87 IS 17 AR 174405 DI 10.1103/PhysRevB.87.174405 PG 11 WC Physics, Condensed Matter SC Physics GA 138LE UT WOS:000318509300002 ER PT J AU Cao, W Song, CY Lanier, TE Singh, R O'Hara, JF Dennis, WM Zhao, YP Zhang, WL AF Cao, Wei Song, Chunyuan Lanier, Thomas E. Singh, Ranjan O'Hara, John F. Dennis, William M. Zhao, Yiping Zhang, Weili TI Tailoring terahertz plasmons with silver nanorod arrays SO SCIENTIFIC REPORTS LA English DT Article ID TRANSMISSION PROPERTIES; PULSES; THZ; METAMATERIAL; SPECTROSCOPY; TECHNOLOGY; SENSITIVITY; GENERATION; THIN AB Plasmonic materials that strongly interact with light are ideal candidates for designing subwavelength photonic devices. We report on direct coupling of terahertz waves in metallic nanorods by observing the resonant transmission of surface plasmon polariton waves through lithographically patterned films of silver nanorod (100 nm in diameter) micro-hole arrays. The best enhancement in surface plasmon resonant transmission is obtained when the nanorods are perfectly aligned with the electric field direction of the linearly polarized terahertz wave. This unique polarization-dependent propagation of surface plasmons in structures fabricated from nanorod films offers promising device applications. We conclude that the anisotropy of nanoscale metallic rod arrays imparts a material anisotropy relevant at the microscale that may be utilized for the fabrication of plasmonic and metamaterial based devices for operation at terahertz frequencies. C1 [Cao, Wei; O'Hara, John F.; Zhang, Weili] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA. [Song, Chunyuan; Lanier, Thomas E.; Dennis, William M.; Zhao, Yiping] Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA. [Singh, Ranjan] Los Alamos Natl Lab, AOT HPE, Los Alamos, NM 87545 USA. RP Zhang, WL (reprint author), Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA. EM weili.zhang@okstate.edu RI Singh, Ranjan/B-4091-2010; Zhao, Yiping/A-4968-2008; Song, Chunyuan/E-5489-2013; Zhang, Weili/C-5416-2011 OI Singh, Ranjan/0000-0001-8068-7428; Zhang, Weili/0000-0002-8591-0200 FU National Science Foundation [ECCS-1232081, ECCS-1029609]; National Science Foundation of China [61028011] FX This work is partially supported by the National Science Foundation (Grant No. ECCS-1232081) and the National Science Foundation of China (Grant No. 61028011). CYS and YPZ thank the support from National Science Foundation (Grant No. ECCS-1029609). NR 42 TC 14 Z9 14 U1 5 U2 84 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2045-2322 J9 SCI REP-UK JI Sci Rep PD MAY 3 PY 2013 VL 3 AR 1766 DI 10.1038/srep01766 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 136BI UT WOS:000318334000003 ER PT J AU Wu, HM Stern, LA Chen, JH Huth, M Schwalb, CH Winhold, M Porrati, F Gonzalez, CM Timilsina, R Rack, PD AF Wu, H. M. Stern, L. A. Chen, J. H. Huth, M. Schwalb, C. H. Winhold, M. Porrati, F. Gonzalez, C. M. Timilsina, R. Rack, P. D. TI Synthesis of nanowires via helium and neon focused ion beam induced deposition with the gas field ion microscope SO NANOTECHNOLOGY LA English DT Article ID REPAIR; LITHOGRAPHY; PLATINUM AB The ion beam induced nanoscale synthesis of platinum nanowires using the trimethyl (methylcyclopentadienyl)platinum(IV). ((MeCpPtMe3)-Me-IV) precursor is investigated using helium and neon ion beams in the gas field ion microscope. The He+ beam induced deposition resembles material deposited by electron beam induced deposition with very small platinum nanocrystallites suspended in a carbonaceous matrix. The He+ deposited material composition was estimated to be 16% Pt in a matrix of amorphous carbon with a large room-temperature resistivity (similar to 3.5 x 10(4)-2.2 x 10(5) mu Omega cm) and temperature-dependent transport behavior consistent with a granular material in the weak intergrain tunnel coupling regime. The Ne+ deposited material has comparable composition (17%), however a much lower room-temperature resistivity (similar to 600-3.0 x 10(3) mu Omega cm) and temperature-dependent electrical behavior representative of strong intergrain coupling. The Ne+ deposited nanostructure has larger platinum nanoparticles and is rationalized via Monte Carlo ion-solid simulations which show that the neon energy density deposited during growth is much larger due to the smaller ion range and is dominated by nuclear stopping relative to helium which has a larger range and is dominated by electronic stopping. C1 [Wu, H. M.; Stern, L. A.] Ion Microscopy Innovat Ctr LLC, Carl Zeiss Microscopy, Peabody, MA 01960 USA. [Chen, J. H.; Rack, P. D.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Huth, M.; Schwalb, C. H.; Winhold, M.; Porrati, F.] Goethe Univ Frankfurt, Dept Phys, Inst Phys, D-60438 Frankfurt, Germany. [Gonzalez, C. M.; Timilsina, R.; Rack, P. D.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. RP Wu, HM (reprint author), Ion Microscopy Innovat Ctr LLC, Carl Zeiss Microscopy, 1 Corp Way, Peabody, MA 01960 USA. EM prack@utk.edu RI Huth, Michael/D-1218-2009; Schwalb, Christian/G-9947-2011; Chen, Jihua/F-1417-2011; OI Huth, Michael/0000-0001-7415-465X; Chen, Jihua/0000-0001-6879-5936; Rack, Philip/0000-0002-9964-3254 FU Semiconductor Research Corporation; Oak Ridge National Laboratory by the Division of Scientific User Facilities, US Department of Energy; Beilstein-Institut, Frankfurt/M., within the research collaboration NanoBiC FX PDR CG and RT would like to acknowledge support of the Semiconductor Research Corporation (Bob Havemann, program manager). PDR, HW, JC and LS also acknowledge that a portion of this research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, US Department of Energy.; MH and FP would like to acknowledge financial support by the Beilstein-Institut, Frankfurt/M., within the research collaboration NanoBiC. NR 34 TC 10 Z9 10 U1 2 U2 50 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0957-4484 EI 1361-6528 J9 NANOTECHNOLOGY JI Nanotechnology PD MAY 3 PY 2013 VL 24 IS 17 AR 175302 DI 10.1088/0957-4484/24/17/175302 PG 8 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 123LC UT WOS:000317390100006 PM 23548767 ER PT J AU Orozco, JJ Back, T Kenoyer, A Balkin, ER Hamlin, DK Wilbur, DS Fisher, DR Frayo, SL Hylarides, MD Green, DJ Gopal, AK Press, OW Pagel, JM AF Orozco, Johnnie J. Baeck, Tom Kenoyer, Aimee Balkin, Ethan R. Hamlin, Donald K. Wilbur, D. Scott Fisher, Darrell R. Frayo, Shani L. Hylarides, Mark D. Green, Damian J. Gopal, Ajay K. Press, Oliver W. Pagel, John M. TI Anti-CD45 radioimmunotherapy using At-211 with bone marrow transplantation prolongs survival in a disseminated murine leukemia model SO BLOOD LA English DT Article ID ACUTE MYELOID-LEUKEMIA; TOTAL-BODY IRRADIATION; ALPHA-PARTICLE THERAPY; MONOCLONAL-ANTIBODIES; PRETARGETED RADIOIMMUNOTHERAPY; LONG-TERM; PHASE-I; MYELODYSPLASTIC SYNDROME; CELL TRANSPLANTATION; CYCLOPHOSPHAMIDE AB Despite aggressive chemotherapy combined with hematopoietic stem cell transplantation (HSCT), many patients with acute myeloid leukemia (AML) relapse. Radioimmunotherapy (RIT) using monoclonal antibodies labeled with beta-emitting radionuclides has been explored to reduce relapse. beta emitters are limited by lower energies and nonspecific cytotoxicity from longer path lengths compared with a emitters such as At-211, which has a higher energy profile and shorter path length. We evaluated the efficacy and toxicity of anti-CD45 RIT using At-211-anti-CD45 At in a disseminated murine AML model. Biodistribution studies in leukemic SJL/J mice showed excellent localization of At-211-anti-CD45 At-anti-murine CD45 mAb (30F11) to marrow and spleen within 24 hours (18% and 79% injected dose per gram of tissue [ID/g], respectively), with lower kidney and lung uptake (8.4% and 14% ID/g, respectively). In syngeneic HSCT studies, At-211-anti-CD45 At-B10-30F11 RIT improved the median survival of leukemic mice in a dose-dependent fashion (123, 101, 61, and 37 days given 24, 20, 12, and 0 mu Ci, respectively). This approach had minimal toxicity with nadir white blood cell counts >2.7 K/mL 2 weeks after HSCT and recovery by 4 weeks. These data suggest that At-211-anti-CD45 RIT in conjunction with HSCT may be a promising therapeutic option for AML. C1 [Orozco, Johnnie J.; Kenoyer, Aimee; Frayo, Shani L.; Hylarides, Mark D.; Green, Damian J.; Gopal, Ajay K.; Press, Oliver W.; Pagel, John M.] Fred Hutchinson Canc Res Ctr, Div Clin Res, Seattle, WA 98109 USA. [Orozco, Johnnie J.] Univ Washington, Dept Med, Div Hematol, Seattle, WA 98195 USA. [Baeck, Tom] Univ Gothenburg, Sahlgrenska Acad, Dept Radiat Phys, Gothenburg, Sweden. [Balkin, Ethan R.; Hamlin, Donald K.; Wilbur, D. Scott] Univ Washington, Seattle, WA 98195 USA. [Fisher, Darrell R.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Green, Damian J.; Gopal, Ajay K.; Press, Oliver W.; Pagel, John M.] Univ Washington, Dept Med, Seattle, WA USA. RP Pagel, JM (reprint author), Fred Hutchinson Canc Res Ctr, 1100 Fairview Ave North,M-S D3-190, Seattle, WA 98109 USA. EM jpagel@fhcrc.org OI Back, Tom/0000-0002-3375-9473 FU National Institutes of Health [R01 CA138720, R01 CA109663, R01 CA076287, R01 CA136639, P01 CA044991]; National Institutes of Health (Lymphoma Research Foundation); Damon Runyon Cancer Foundation; Leukemia and Lymphoma Society; American Society of Blood and Marrow Transplantation FX This work was supported by the National Institutes of Health (R01 CA138720, R01 CA109663, R01 CA076287, R01 CA136639, P01 CA044991 and awards from the Lymphoma Research Foundation (O.W.P and J.M.P), Damon Runyon Cancer Foundation (J.M.P.), Leukemia and Lymphoma Society (O.W.P., J.M.P., A.K.G., and J.J.O.), and the American Society of Blood and Marrow Transplantation (J.J.O.), as well as Frederick Kullman (J.M.P.) and the Penny E. Petersen Endowed Chair (O.W.P.), funded by James and Sherry Raisbeck. NR 35 TC 13 Z9 14 U1 0 U2 8 PU AMER SOC HEMATOLOGY PI WASHINGTON PA 2021 L ST NW, SUITE 900, WASHINGTON, DC 20036 USA SN 0006-4971 J9 BLOOD JI Blood PD MAY 2 PY 2013 VL 121 IS 18 BP 3759 EP 3767 DI 10.1182/blood-2012-11-467035 PG 9 WC Hematology SC Hematology GA 184EG UT WOS:000321870000031 PM 23471305 ER PT J AU Harris, JW Kharzeev, D Ullrich, T AF Harris, John W. Kharzeev, Dmitri Ullrich, Thomas TI Proceedings of the XXIII International Conference on Ultrarelativistic Nucleus-Nucleus Collisions Washington DC USA August 13-18, 2012 Preface SO NUCLEAR PHYSICS A LA English DT Editorial Material C1 [Harris, John W.] Yale Univ, New Haven, CT 06520 USA. [Kharzeev, Dmitri] SUNY Stony Brook, Stony Brook, NY USA. [Ullrich, Thomas] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Harris, JW (reprint author), Yale Univ, New Haven, CT 06520 USA. NR 0 TC 0 Z9 0 U1 2 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP VII EP VIII DI 10.1016/j.nuclphysa.2013.01.035 PG 2 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100001 ER PT J AU Sakaguchi, T AF Sakaguchi, Takao CA PHENIX Collaboration TI PHENIX Highlights SO NUCLEAR PHYSICS A LA English DT Article ID COLLISIONS AB PHENIX reports on electromagnetic and hadronic observables in large data sets of p+p, d+Au and Au+Au collisions at various cms energies. Initial state effects in cold nuclear matter are quantified by centrality dependent pi(0), eta, reconstructed jets and psi' measurements. Using the first run of the new EBIS ion source at RHIC, we report first results for particle flow (nu(1)and V-2) and quarkonium production in U+U and Cu+Au collisions. Hot matter created in Au+Au is characterized using event-plane dependent HBT and dielectrons. Parton-medium interactions are investigated using high P-T single hadrons, gamma-hadron correlations and heavy flavor decay electrons identified with the newly installed VTX detector. C1 [Sakaguchi, Takao; PHENIX Collaboration] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Sakaguchi, T (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. FU Office of Nuclear Physics in the Office of Science of the Department of Energy (U.S.A); National Science Foundation (U.S.A); Abilene Christian University Research Council (U.S.A); Research Foundation of SUNY (U.S.A); Ministry of Education, Culture, Sports, Science, and Technology (Japan); Japan Society for the Promotion of Science (Japan); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Brazil); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil); Natural Science Foundation of China (P. R. China); Ministry of Education, Youth and Sports (Czech Republic); Centre National de la Recherche Scientifique (France); Commissariat l'Energie Atomique (France); Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung (Germany); Deutscher Akademischer Austausch Dienst (Germany); Alexander von Humboldt Stiftung (Germany); Hungarian National Science Fund, OTKA (Hungary); Department of Atomic Energy (India); Department of Science and Technology (India); Israel Science Foundation (Israel); National Research Foundation (Korea); WCU program of the Ministry Education Science and Technology (Korea); Ministry of Education and Science (Russia); Russian Academy of Sciences (Russia); Federal Agency of Atomic Energy (Russia); VR Foundation (Sweden); Wallenberg Foundation (Sweden); U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union; US-Israel Binational Science Foundation FX We thank the staff of the Collider-Accelerator and Physics Departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (U.S.A), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil), Natural Science Foundation of China (P. R. China), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat l'Energie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France), Bundesministerium fur Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), Hungarian National Science Fund, OTKA (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), National Research Foundation and WCU program of the Ministry Education Science and Technology (Korea), Ministry of Education and Science, Russian Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and Wallenberg Foundation (Sweden), the U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, and the US-Israel Binational Science Foundation. NR 7 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 11C EP 18C DI 10.1016/j.nuclphysa.2013.01.039 PG 8 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100003 ER PT J AU Dong, X AF Dong, Xin CA STAR Collaboration TI Highlights from STAR SO NUCLEAR PHYSICS A LA English DT Article AB In these proceedings, I highlight some selected results from the STAR experiment that were presented in the Quark Matter 2012 conference. C1 [Dong, Xin; STAR Collaboration] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Dong, X (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, MS70R0319,1 Cyclotron Rd, Berkeley, CA 94720 USA. RI Dong, Xin/G-1799-2014 OI Dong, Xin/0000-0001-9083-5906 FU RHIC Operations Group at BNL; RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium; Office of NP within the U.S. DOE Office of Science; Office of HEP within the U.S. DOE Office of Science; U.S. NSF; Sloan Foundation; CNRS/IN2P3; FAPESP CNPq of Brazil; Ministry of Ed. and Sci. of the Russian Federation; NNSFC of China; CAS of China; MoST of China; MoE of China; GA of the Czech Republic; MSMT of the Czech Republic; FOM of the Netherlands; NWO of the Netherlands; DAE of India; DST of India; CSIR of India; Polish Ministry of Sci. and Higher Ed.; National Research Foundation [NRF-2012004024]; Ministry of Sci., Ed. and Sports of the Rep. of Croatia; RosAtom of Russia FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Offices of NP and HEP within the U.S. DOE Office of Science, the U.S. NSF, the Sloan Foundation, CNRS/IN2P3, FAPESP CNPq of Brazil, Ministry of Ed. and Sci. of the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST, and CSIR of India, Polish Ministry of Sci. and Higher Ed., National Research Foundation (NRF-2012004024), Ministry of Sci., Ed. and Sports of the Rep. of Croatia, and RosAtom of Russia. NR 15 TC 18 Z9 18 U1 2 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 19C EP 26C DI 10.1016/j.nuclphysa.2013.01.040 PG 8 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100004 ER PT J AU Dumitru, A AF Dumitru, Adrian TI Review of Recent Developments in the CGC SO NUCLEAR PHYSICS A LA English DT Review ID GLUON DISTRIBUTION-FUNCTIONS; LARGE NUCLEI; SMALL-X; EVOLUTION; QCD; ENERGY; QUARK AB I review recent developments in the CGC approach to high-energy collisions. The focus is on topics related to the Quark Matter conference, specifically on predictions for the upcoming p+Pb run at the LHC; as an added bonus some of these predictions are confronted with preliminary data taken during the p+Pb machine performance test at the LHC performed in september 2012. I also highlight recent work related to particle production fluctuations, suppression of nuclear modification factors in p+A from rcBK evolution, (partial) NLO corrections in forward production, and photon-hadron as well as di-hadron correlations. C1 [Dumitru, Adrian] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA. [Dumitru, Adrian] CUNY Bernard M Baruch Coll, Dept Nat Sci, New York, NY 10010 USA. RP Dumitru, A (reprint author), Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA. FU DOE Office of Nuclear Physics [DE-FG02-09ER41620]; City University of New York through the PSC-CUNY Research Award Program [65041-0043] FX I thank Quark Matter 2012 for the opportunity to present recent developments in this field. I also thank all of my collaborators for their contributions and B. Schenke, H. Mantysaari for providing custom versions of the plots shown in figs. 3 and 6, respectively. This work is supported by the DOE Office of Nuclear Physics through Grant No. DE-FG02-09ER41620 and by The City University of New York through the PSC-CUNY Research Award Program, grant 65041-0043. NR 47 TC 1 Z9 1 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 51C EP 58C DI 10.1016/j.nuclphysa.2013.01.044 PG 8 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100008 ER PT J AU Wysocki, MG AF Wysocki, Matthew G. CA PHENIX Collaboration TI Cold Nuclear Matter Effects at PHENIX SO NUCLEAR PHYSICS A LA English DT Article ID LARGE TRANSVERSE-MOMENTUM; COLLISIONS AB While the study of the quark-gluon plasma has been the primary focus of the RHIC experiments, much work has also been done to understand so-called cold nuclear matter (CNM) effects through d+Au collisions where no hot plasma is produced. Effects such as nuclear shadowing, Cronin enhancement, and initial-state parton energy loss, among others, are not only interesting in their own right, but have direct implications on QGP-related measurements in A+A collisions. Recently PHENIX has measured CNM effects at midrapidity in root sNN = 200 GeV d+Au collisions. Measurements of reconstructed jets reveal the centrality dependence of both jet suppression and broadening of the away-side jet. Meanwhile, single electrons from heavy flavor decays exhibit enhancement, increasing with centrality, over a broad p(T) range. J/psi and psi' modification have also been measured and are quite different in magnitude, in contrast with our expectations. The above results are presented here and compared to our present understanding of CNM effects. C1 [Wysocki, Matthew G.; PHENIX Collaboration] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Wysocki, MG (reprint author), Oak Ridge Natl Lab, MS 6373, Oak Ridge, TN 37831 USA. FU Office of Nuclear Physics in the Office of Science of the Department of Energy (U.S.A); National Science Foundation (U.S.A); Abilene Christian University Research Council (U.S.A); Research Foundation of SUNY (U.S.A); Ministry of Education, Culture, Sports, Science, and Technology (Japan); Japan Society for the Promotion of Science (Japan); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Brazil); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil); Natural Science Foundation of China (P. R. China); Ministry of Education, Youth and Sports (Czech Republic); Centre National de la Recherche Scientifique (France); Commissariat l'Energie Atomique (France); Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung (Germany); Deutscher Akademischer Austausch Dienst (Germany); Alexander von Humboldt Stiftung (Germany); Hungarian National Science Fund, OTKA (Hungary); Department of Atomic Energy (India); Department of Science and Technology (India); Israel Science Foundation (Israel); National Research Foundation (Korea); WCU program of the Ministry Education Science and Technology (Korea); Ministry of Education and Science (Russia); Russian Academy of Sciences (Russia); Federal Agency of Atomic Energy (Russia); VR Foundation (Sweden); Wallenberg Foundation (Sweden); U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union; US-Israel Binational Science Foundation FX We thank the staff of the Collider-Accelerator and Physics Departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (U.S.A), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil), Natural Science Foundation of China (P. R. China), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat a l'Energie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France), Bundesministerium fur Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), Hungarian National Science Fund, OTKA (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), National Research Foundation and WCU program of the Ministry Education Science and Technology (Korea), Ministry of Education and Science, Russian Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and Wallenberg Foundation (Sweden), the U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, and the US-Israel Binational Science Foundation. NR 19 TC 2 Z9 2 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 67C EP 74C DI 10.1016/j.nuclphysa.2013.01.046 PG 8 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100010 ER PT J AU Steinberg, P AF Steinberg, Peter CA ATLAS Collaboration TI Photon and Z production, and gamma/Z-jet correlations in lead-lead collisions at the LHC with ATLAS SO NUCLEAR PHYSICS A LA English DT Article AB ATLAS results on the production of photons and Z bosons in lead-lead collisions at the LHC are presented. Their production rates are found to scale with the number of binary collisions, as expected from QCD factorization at large transverse momentum. This makes them an ideal tool for probing the modification of jets which balance their transverse momentum. Despite the large differences in available statistics, both channels show a strong modification of the energy of the recoil jets, which increases with centrality. C1 [Steinberg, Peter; ATLAS Collaboration] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Steinberg, P (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. FU ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil; NSERC, Canada; NRC, Canada; CFI, Canada; CERN; CONICYT, Chile; CAS, China; MOST, China; NSFC, China; COLCIENCIAS, Colombia; MSMT CR, Czech Republic; MPO CR, Czech Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark; Lundbeck Foundation, Denmark; EPLANET, European Union; ERC, European Union; IN2P3-CNRS, France; CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, Germany; DFG, Germany; HGF, Germany; MPG, Germany; AvH Foundation, Germany; GSRT, Greece; ISF, Israel; MINERVA, Israel; GIF, Israel; DIP, Israel; Benoziyo Center, Israel; INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco; FOM, Netherlands; NWO, Netherlands; BRF, Norway; RCN, Norway; MNiSW, Poland; GRICES, Portugal; FCT, Portugal; MERYS (MECTS), Romania; MES of Russia, Russian Federation; ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS, Slovenia; MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC, Sweden; Wallenberg Foundation, Sweden; SER, Switzerland; SNSF, Switzerland; Cantons of Bern, Switzerland; Cantons of Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, United Kingdom; Royal Society, United Kingdom; Leverhulme Trust, United Kingdom; DOE, United States of America; NSF, United States of America FX We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. NR 16 TC 1 Z9 1 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 233C EP 240C DI 10.1016/j.nuclphysa.2013.01.064 PG 8 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100031 ER PT J AU O'Brien, E AF O'Brien, Edward CA PHENIX Collaboration TI Recent PHENIX Results from the RHIC Energy Scan SO NUCLEAR PHYSICS A LA English DT Article AB The PHENIX experiment has analyzed data produced in beam energy scans performed by the Relativistic Heavy Ion Collider at Brookhaven National Laboratory, that cover an energy range of root s(NN) = 7.7 GeV to 200 GeV. Analyses search for signatures of the onset of sQGP formation and the QCD critical point by examining the evolution of event characteristics versus centrality as root s(NN) is varied. Results from excitation studies of global variables and their fluctuations, parton energy loss, J/psi R-AA and anisotropic flow are presented. C1 [O'Brien, Edward; PHENIX Collaboration] Brookhaven Natl Lab, Upton, NY 11764 USA. RP O'Brien, E (reprint author), Brookhaven Natl Lab, Upton, NY 11764 USA. FU Office of Nuclear Physics in the Office of Science of the Department of Energy; National Science Foundation (U.S.A); Abilene Christian University Research Council (U.S.A); Research Foundation of SUNY (U.S.A); Ministry of Education, Culture, Sports, Science (Japan); Japan Society for the Promotion of Science (Japan); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Brazil); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil); Natural Science Foundation of China (P. R. China); Ministry of Education, Youth and Sports (Czech Republic); Centre National de la Recherche Scientifique (France); Commissariat a l'Energie Atomique (France); Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung (Germany); Deutscher Akademischer Austausch Dienst (Germany); Alexander von Humboldt Stiftung (Germany); Hungarian National Science Fund, OTKA (Hungary); Department of Atomic Energy (India); Department of Science and Technology (India); Israel Science Foundation (Israel); National Research Foundation (Korea); WCU program of the Ministry Education Science and Technology (Korea); Ministry of Education and Science (Russia); Russian Academy of Sciences (Russia); Federal Agency of Atomic Energy (Russia); VR (Sweden); Wallenberg Foundation (Sweden); U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union; US-Israel Binational Science Foundation FX We thank the staff of the Collider-Accelerator and Physics Departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (U.S.A), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil), Natural Science Foundation of China (P. R. China), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat a l'Energie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France), Bundesministerium fur Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), Hungarian National Science Fund, OTKA (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), National Research Foundation and WCU program of the Ministry Education Science and Technology (Korea), Ministry of Education and Science, Russian Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and Wallenberg Foundation (Sweden), the U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, and the US-Israel Binational Science Foundation. NR 9 TC 6 Z9 6 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 264C EP 269C DI 10.1016/j.nuclphysa.2013.01.071 PG 6 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100035 ER PT J AU Yee, HU AF Yee, Ho-Ung TI Recent Theoretical Developments in Strongly Coupled QCD SO NUCLEAR PHYSICS A LA English DT Article ID HIGH-ENERGY SCATTERING; BFKL POMERON; COLLISIONS; ADS/CFT AB Heavy-ion collisions involve strongly coupled dynamics of QCD in the entire history of time evolution. We review recent theoretical efforts to meet this challenge, focusing on the two approaches that the speaker has contributed to: 1) Holography or AdS/CFT correspondence, and 2) Symmetry protected phenomena such as those originating from triangle anomaly. The presentation is oriented to non-experts on these fields, and hence relies on intuitive pictures of the methods and the results, without going into specific details. C1 [Yee, Ho-Ung] Univ Illinois, Dept Phys, Chicago, IL 60607 USA. [Yee, Ho-Ung] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. RP Yee, HU (reprint author), Univ Illinois, Dept Phys, Chicago, IL 60607 USA. NR 49 TC 2 Z9 2 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 310C EP 317C DI 10.1016/j.nuclphysa.2013.01.077 PG 8 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100041 ER PT J AU Gale, C Ruan, LJ AF Gale, Charles Ruan, Lijuan TI Heavy Flavor, Quarkonia, and Electroweak Probes at Quark Matter 2012 SO NUCLEAR PHYSICS A LA English DT Article ID COLLISIONS AB We summarize and discuss some of the experimental and theoretical results on heavy flavor, quarkonia, and electro-weak probes presented at Quark Matter 2012. C1 [Gale, Charles] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Ruan, Lijuan] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Gale, C (reprint author), McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada. FU Natural Sciences and Engineering Research Council of Canada; U. S. Department of Energy [DE-AC02-98CH10886] FX The work of CG is supported in part by the Natural Sciences and Engineering Research Council of Canada, and the work of of LR is supported in part by the U. S. Department of Energy under Contract No. DE-AC02-98CH10886. NR 25 TC 4 Z9 4 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 334C EP 341C DI 10.1016/j.nuclphysa.2013.01.080 PG 8 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100044 ER PT J AU Luzum, M Ollitrault, JY AF Luzum, Matthew Ollitrault, Jean-Yves TI Extracting the shear viscosity of the quark-gluon plasma from flow in ultra-central heavy-ion collisions SO NUCLEAR PHYSICS A LA English DT Article AB We propose a method for extracting the shear viscosity over entropy density ratio (eta/s) of the quark-gluon plasma from experimental data. We argue that uncertainty due to poor knowledge of the earliest stages of a heavy-ion collision is smallest for ultra-central events. The most precise value of eta/s can thus be obtained from a global fit to p(T)-integrated Fourier harmonics of azimuthal correlations. We further outline a method for quantifying the overall uncertainty in the extracted value. Only after a comprehensive and systematic accounting of all sources of uncertainty can a reliable measurement be claimed. In these proceedings we report preliminary results; full and final results will be presented in a separate publication. C1 [Luzum, Matthew; Ollitrault, Jean-Yves] CNRS, URA2306, Inst Phys Theor Saclay, F-91191 Gif Sur Yvette, France. [Luzum, Matthew] McGill Univ, Montreal, PQ H3A 2TS, Canada. [Luzum, Matthew] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Luzum, M (reprint author), CNRS, URA2306, Inst Phys Theor Saclay, F-91191 Gif Sur Yvette, France. RI Luzum, Matthew/C-4986-2015 OI Luzum, Matthew/0000-0002-0367-7055 NR 14 TC 26 Z9 26 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 377C EP 380C DI 10.1016/j.nuclphysa.2013.02.028 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100052 ER PT J AU Ryu, SW Jeon, SY Gale, C Schenke, B Young, C AF Ryu, Sangwook Jeon, Sangyong Gale, Charles Schenke, Bjoern Young, Clint TI MUSIC with the UrQMD Afterburner SO NUCLEAR PHYSICS A LA English DT Article ID HEAVY-ION COLLISIONS; FLOW AB As RHIC is entering the precision measurement era and the LHC is producing a copious amount of new data, the role of 3+1D event-by-event viscous hydrodynamics is more important than ever to understand the bulk data as well as providing the background for hard probes. For more meaningful comparison with the experimental data, it is also important that hydrodynamics be coupled to the hadronic afterburner. In this proceeding we report on preliminary results of coupling MUSIC with UrQMD. C1 [Ryu, Sangwook; Jeon, Sangyong; Gale, Charles; Young, Clint] McGill Univ, Montreal, PQ, Canada. [Schenke, Bjoern] Brookhaven Natl Lab, Upton, NY 11973 USA. [Young, Clint] Univ Minnesota, Minneapolis, MN USA. RP Ryu, SW (reprint author), McGill Univ, Montreal, PQ, Canada. FU Natural Sciences and Engineering Research Council of Canada; DOE [DE-AC02-98CH10886]; BNL Lab Directed Research and Development grant; Brookhaven Science Associates FX CG, SJ and SR are supported by the Natural Sciences and Engineering Research Council of Canada. BPS is supported under DOE Contract No.DE-AC02-98CH10886 and acknowledges support from a BNL Lab Directed Research and Development grant. BPS gratefully acknowledges a Goldhaber Distinguished Fellowship from Brookhaven Science Associates. We greatly appreciate computer time on the Guillimin cluster at the CLUMEQ HPC centre, a part of Compute Canada HPC facilities where bulk of these calculations were carried out. We also thank H. Petersen and P. Huovinen for helpful discussions. NR 29 TC 10 Z9 10 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 389C EP 392C DI 10.1016/j.nuclphysa.2013.02.031 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100055 ER PT J AU Kurosawa, M AF Kurosawa, Maki CA PHENIX Collaboration TI Higher harmonics flow measurement of charged hadrons and electrons in wide kinematic range with PHENIX VTX tracker SO NUCLEAR PHYSICS A LA English DT Article AB The silicon vertex tracker (VTX) was installed into the PHENIX experiment in 2010 and it successfully collected approximately 5 billion events of Au+Au collisions at 200 GeV in the 2011 RHIC run. The main function of the VTX is separation of heavy flavor hadrons, charm and bottom, with a measurement of Distance of Closest Approach (DCA) of single electrons from heavy flavor decays. By identifying electrons with PHENIX central detectors, the azimuthal anisotropy of electrons from heavy flavor decays can be determined over a broad PT range. In this paper, we will present measurement results on v(2) and v(3) of charged hadrons, and v(2) of single electron from charm decay. C1 [Kurosawa, Maki; PHENIX Collaboration] Brookhaven Natl Lab, Dept Phys, RIKEN BNL Res Ctr, Upton, NY 11973 USA. RP Kurosawa, M (reprint author), Brookhaven Natl Lab, Dept Phys, RIKEN BNL Res Ctr, Bldg 510A, Upton, NY 11973 USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 397C EP 400C DI 10.1016/j.nuclphysa.2013.02.033 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100057 ER PT J AU Gale, C Jeon, S Schenke, B Tribedy, P Venugopalan, R AF Gale, Charles Jeon, Sangyong Schenke, Bjoern Tribedy, Prithwish Venugopalan, Raju TI Initial state fluctuations and higher harmonic flow in heavy-ion collisions SO NUCLEAR PHYSICS A LA English DT Article ID NUCLEUS-NUCLEUS COLLISIONS AB A framework combining Yang-Mills dynamics of the pre-equilibrium glasma with relativistic viscous hydrodynamic evolution of the quark-gluon plasma and hadron gas phases is presented. Event-by-event fluctuations of nucleon positions and color charges are taken into account, leading to negative binomial fluctuations of gluon multiplicities. Experimental anisotropic flow coefficients v(2)-v(5) of charged hadron distributions in heavy-ion collisions at the Large Hadron Collider are well described. Furthermore, event-by-event distributions of v(2), v(3) and v(4) measured by the ATLAS collaboration are reproduced. C1 [Gale, Charles; Jeon, Sangyong] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Schenke, Bjoern; Venugopalan, Raju] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Tribedy, Prithwish] Ctr Variable Energy Cyclotron, Kolkata 700064, India. RP Gale, C (reprint author), McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada. FU DOE [DE-AC02-98CH10886]; BNL Lab Directed Research and Development grant; Natural Sciences and Engineering Research Council of Canada; Brookhaven Science Associates FX BPS and RV are supported under DOE Contract No.DE-AC02-98CH10886 and acknowledge support from a BNL Lab Directed Research and Development grant. CG and SJ are supported by the Natural Sciences and Engineering Research Council of Canada. We gratefully acknowledge computer time on the Guillimin cluster at the CLUMEQ HPC centre, a part of Compute Canada HPC facilities. BPS gratefully acknowledges a Goldhaber Distinguished Fellowship from Brookhaven Science Associates. NR 21 TC 12 Z9 12 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 409C EP 412C DI 10.1016/j.nuclphysa.2013.02.037 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100060 ER PT J AU Jia, JY AF Jia, Jiangyong CA ATLAS Collaboration TI Measurement of event-by-event flow harmonics in Pb-Pb Collisions at root s(NN)=2.76 TeV with the ATLAS detector SO NUCLEAR PHYSICS A LA English DT Article AB The event-by-event distributions of harmonic flow coefficients nu(n) for n=2-4 are measured in Pb-Pb collisions at root S-NN = 2.76 TeV, using charged particles with p(T) > 0.5 GeV and vertical bar eta vertical bar < 2.5. The shape of the nu(n) distributions is consistent with Gaussian fluctuations in central collisions for nu(2) and over the measured centrality range for nu(3) and nu(4). When these distributions are rescaled to the same , the resulting shapes are similar for p(T) > 1 GeV and 0.5 < p(T) < 1 GeV. The shape of the eccentricity distributions from Glauber and the MC-KLN models fail to describe the shape of the nu(n) distributions over the full centrality range. C1 [Jia, Jiangyong] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. Dept Phys, Brookhaven Natl Lab, Upton, NY 11796 USA. RP Jia, JY (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. RI Pacheco Pages, Andres/C-5353-2011 OI Pacheco Pages, Andres/0000-0001-8210-1734 FU ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil; NSERC, Canada; NRC, Canada; CFI, Canada; CERN; CONICYT, Chile; CAS, China; MOST, China; NSFC, China; COLCIENCIAS, Colombia; MSMT CR, Czech Republic; MPO CR, Czech Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark; Lundbeck Foundation, Denmark; EPLANET, European Union; ERC, European Union; IN2P3-CNRS, France; CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, Germany; DFG, Germany; HGF, Germany; MPG, Germany; AvH Foundation, Germany; GSRT, Greece; ISF, Israel; MINERVA, Israel; GIF, Israel; DIP, Israel; Benoziyo Center, Israel; INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco; FOM, Netherlands; NWO, Netherlands; BRF, Norway; RCN, Norway; MNiSW, Poland; GRICES, Portugal; FCT, Portugal; MERYS (MECTS), Romania; MES of Russia, Russian Federation; ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS, Slovenia; MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC Foundation, Sweden; Wallenberg Foundation, Sweden; SER, Switzerland; SNSF, Switzerland; Cantons of Bern, Switzerland; Cantons of Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, United Kingdom; Royal Society, United Kingdom; Leverhulme Trust, United Kingdom; DOE United States of America; NSF, United States of America FX We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. NR 9 TC 8 Z9 8 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 421C EP 424C DI 10.1016/j.nuclphysa.2013.02.039 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100063 ER PT J AU Gardim, FG Grassi, F Luzum, M Ollitrault, JY AF Gardim, Fernando G. Grassi, Frederique Luzum, Matthew Ollitrault, Jean-Yves TI Characterizing the hydrodynamic response to the initial conditions SO NUCLEAR PHYSICS A LA English DT Article AB In hydrodynamics, the momentum distribution of particles at the end of the evolution is completely determined by initial conditions. We study quantitatively to what extent anisotropic flow v is determined by predictors such as the initial eccentricity epsilon(n) in a set of realistic simulations, and we also show the importance of nonlinear terms in order to correctly predict v(4). This knowledge will be important for making a more direct link between experimental observables and hydrodynamic initial conditions, the latter being poorly constrained at present. C1 [Gardim, Fernando G.; Grassi, Frederique] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil. [Luzum, Matthew; Ollitrault, Jean-Yves] CNRS, URA2306, IPhT, Inst Phys Theor Saclay, F-91191 Gif Sur Yvette, France. [Luzum, Matthew] McGill Univ, Montreal, PQ H3A 2TS, Canada. [Luzum, Matthew] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Gardim, FG (reprint author), Univ Sao Paulo, Inst Fis, CP 66318, BR-05315970 Sao Paulo, Brazil. RI Gardim, Fernando/N-4365-2013; Luzum, Matthew/C-4986-2015; Grassi, Frederique/E-6374-2013 OI Gardim, Fernando/0000-0002-4838-1469; Luzum, Matthew/0000-0002-0367-7055; FU FAPESP [09/50180-0, 09/16860-3]; Agence Nationale de la Recherche [ANR-08-BLAN-0093-01]; Cofecub [Uc Ph 113/08, 2007.1.875.43.9] FX This work is funded by FAPESP under projects 09/50180-0 and 09/16860-3, by CNPq under project 301141/2010-0, by Agence Nationale de la Recherche under grant ANR-08-BLAN-0093-01, and by Cofecub under project Uc Ph 113/08;2007.1.875.43.9. NR 8 TC 4 Z9 4 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 503C EP 506C DI 10.1016/j.nuclphysa.2013.02.063 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100083 ER PT J AU Vujanovic, G Young, C Schenke, B Jeon, S Rapp, R Gale, C AF Vujanovic, G. Young, C. Schenke, B. Jeon, S. Rapp, R. Gale, C. TI Dilepton production in high energy heavy ion collisions with 3+1D relativistic viscous hydrodynamics SO NUCLEAR PHYSICS A LA English DT Article AB We present a first calculation of the dilepton yield and elliptic flow done with 3+1D viscous hydrodynamical simulations of relativistic heavy ion collisions at the top RHIC energy. A comparison with recent experimental data from the STAR collaboration is made. C1 [Vujanovic, G.; Young, C.; Jeon, S.; Gale, C.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Schenke, B.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Rapp, R.] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA. [Rapp, R.] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA. RP Vujanovic, G (reprint author), McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada. FU Natural Sciences and Engineering Research Council of Canada; US National Science Foundation [PHY-0969394]; A.-v.-Humboldt foundation FX We thank I. Kozlov, J.-F. Paquet, L. Ruan, J. Zhao, and R. Vogt for helpful discussions. This work was supported in part by the Natural Sciences and Engineering Research Council of Canada, in part by the US National Science Foundation under grant no. PHY-0969394, and in part by by the A.-v.-Humboldt foundation. NR 12 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 557C EP 560C DI 10.1016/j.nuclphysa.2013.02.075 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100095 ER PT J AU Huang, BC AF Huang, Bingchu CA STAR Collaboration TI Dielectron differential cross section in Au plus Au collisions at different beam energies at STAR SO NUCLEAR PHYSICS A LA English DT Article AB Dielectron invariant mass spectra have been measured at mid-rapidity by the STAR experiment at RHIC in Au+Au collisions at root s(NN)=19.6, 39, 62.4, and 200 GeV. The spectra exhibit excess yields for M-ee < 1.0 GeV/c(2), when compared to the expected contributions from known hadronic sources. The enhanced production rates can be consistently described by a broadened rho spectral function. In addition, the elliptic flow, nu(2), has been measured for dielectron invariant mass M-ee < 1.1 GeV/c(2) in Au+Au collisions at root s(NN)=200 GeV. C1 [Huang, Bingchu; STAR Collaboration] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Huang, BC (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. RI Huang, Bingchu/H-6343-2015 OI Huang, Bingchu/0000-0002-3253-3210 NR 17 TC 7 Z9 7 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 565C EP 568C DI 10.1016/j.nuclphysa.2013.02.077 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100097 ER PT J AU Bazavov, A Petreczky, P AF Bazavov, A. Petreczky, P. TI On static quark anti-quark potential at non-zero temperature SO NUCLEAR PHYSICS A LA English DT Article ID SPECTRAL FUNCTIONS AB We study Wilson loops at non-zero temperature and extract the static quark potential from them. The extracted potentials are larger than the singlet free energies and do not show screening for T < 190 MeV. C1 [Bazavov, A.; Petreczky, P.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11793 USA. RP Bazavov, A (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11793 USA. NR 15 TC 10 Z9 10 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 599C EP 602C DI 10.1016/j.nuclphysa.2013.02.085 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100105 ER PT J AU Ding, HT AF Ding, Heng-Tong TI Momentum dependences of charmonium properties from lattice QCD SO NUCLEAR PHYSICS A LA English DT Article ID J-PSI-SUPPRESSION; SPECTRAL FUNCTIONS AB Charmonia produced in initial hard parton scatterings during heavy ion collisions move with respect to the medium rather than flow with the medium. Lattice studies suggest that charmonium bound states at the rest are dissociated at T greater than or similar to 1.5 T-c. We present results on momentum dependences of charmonium properties in a hot medium from lattice QCD Monte Carlo simulations. The dispersion relation of the screening mass and the change of correlation and spectral functions at various temperatures and momenta are discussed. C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Ding, HT (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. OI Ding, Heng-Tong/0000-0003-0590-081X NR 17 TC 3 Z9 3 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 619C EP 622C DI 10.1016/j.nuclphysa.2013.02.092 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100110 ER PT J AU Nouicer, R AF Nouicer, Rachid CA PHENIX Collaboration TI Probing Hot and Dense Matter with Charm and Bottom Measurements with PHENIX VTX Tracker SO NUCLEAR PHYSICS A LA English DT Article AB We present the first measurements of the nuclear modification factor (R-AA) for flavor-separated b, c-quark electrons in Au+Au collisions at root s(NN) = 200 GeV. The newly installed Silicon Vertex Tracker is used to measure the distance of closest approach distributions of electrons at midrapidity (vertical bar eta vertical bar < 0.35) over the transverse momentum range 1 e/(c -> e+b -> e) ratio is in good agreement with the data. In Au+Au, the data imply a large suppression of b -> e or a large modification of B meson p(T) distributions, which implies very interesting physics of B mesons in Au+Au collisions. C1 [Nouicer, Rachid; PHENIX Collaboration] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Nouicer, R (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. FU Office of Nuclear Physics in the Office of Science of the Department of Energy (U.S.A); National Science Foundation (U.S.A); Abilene Christian University Research Council (U.S.A); Research Foundation of SUNY (U.S.A); Ministry of Education, Culture, Sports, Science, and Technology (Japan); Japan Society for the Promotion of Science (Japan); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Brazil); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil); Natural Science Foundation of China (P. R. China); Ministry of Education, Youth and Sports (Czech Republic); Centre National de la Recherche Scientifique (France); Commissariat l'Energie Atomique (France); Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung (Germany); Deutscher Akademischer Austausch Dienst (Germany); Alexander von Humboldt Stiftung (Germany); Hungarian National Science Fund, OTKA (Hungary); Department of Atomic Energy (India); Department of Science and Technology (India); Israel Science Foundation (Israel); National Research Foundation (Korea); WCU program of the Ministry Education Science and Technology (Korea); Ministry of Education and Science (Russia); Russian Academy of Sciences (Russia); Federal Agency of Atomic Energy (Russia); VR Foundation (Sweden); Wallenberg Foundation (Sweden); U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union; US-Israel Binational Science Foundation FX We thank the staff of the Collider-Accelerator and Physics Departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (U.S.A), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil), Natural Science Foundation of China (P. R. China), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat a l'Energie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France), Bundesministerium fur Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), Hungarian National Science Fund, OTKA (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), National Research Foundation and WCU program of the Ministry Education Science and Technology (Korea), Ministry of Education and Science, Russian Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and Wallenberg Foundation (Sweden), the U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, and the US-Israel Binational Science Foundation. NR 8 TC 3 Z9 3 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 647C EP 652C DI 10.1016/j.nuclphysa.2013.02.099 PG 6 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100117 ER PT J AU Sakai, S AF Sakai, Shingo CA ALICE Collaboration TI Measurement of R-AA and v(2) of electrons from heavy-flavour decays in Pb-Pb collisions at root s(NN)=2.76 TeV with ALICE SO NUCLEAR PHYSICS A LA English DT Article ID MATTER AB We present measurements of the nuclear modification factor (R-AA) and azimuthal anisotropy (v(2)) of heavy-flavour decay electrons by the ALICE Collaboration at central rapidity in Pb-Pb collisions at root s(NN) = 2.76 TeV. A strong suppression of heavy-flavour decay electron production at high p(T) is observed in central Pb-Pb collisions, while non-zero v(2) is seen at low p(T) in semicentral collisions. C1 [Sakai, Shingo; ALICE Collaboration] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Sakai, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. FU State Committee of Science, Armenia; Calouste Gulbenkian Foundation from Lisbon, Armenia; Swiss Fonds Kidagan, Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq); Financiadora de Estudos e Projetos (FINEP); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); National Natural Science Foundation of China (NSFC); Chinese Ministry of Education (CMOE); Ministry of Science and Technology of China (MSTC); Ministry of Education and Youth of the Czech Republic; Danish Natural Science Research Council; Carlsberg Foundation; Danish National Research Foundation; European Research Council under the European Community's Seventh Framework Programme; Helsinki Institute of Physics of Finland; Academy of Finland; French CNRS-IN2P3, France; 'Region Pays de Loire', France; 'Region Alsace', France; 'Region Auvergne', France; CEA, France; German BMBF; Helmholtz Association; General Secretariat for Research and Technology, Ministry of Development, Greece; Hungarian OTKA; National Office for Research and Technology (NKTH); Department of Atomic Energy of the Government of India; Department of Science and Technology of the Government of India; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi", Italy; MEXT, Japan; Joint Institute for Nuclear Research, Dubna; National Research Foundation of Korea (NRF); CONACYT, Mexico; DGAPA, Mexico; ALFA-EC; HELEN Program (High-Energy physics Latin-American-European Network); Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; Research Council of Norway (NFR); Polish Ministry of Science and Higher Education; National Authority for Scientific Research - NASR (Autoritatea Nationala pentru Cercetare Stiintifica - ANCS); Ministry of Education and Science of Russian Federation; International Science and Technology Center; Russian Academy of Sciences; Russian Federal Agency of Atomic Energy; Russian Federal Agency for Science and Innovations; CERN-INTAS; Ministry of Education of Slovakia; Department of Science and Technology, South Africa; CIEMAT,EELA, Ministerio de Educacion y Ciencia of Spain; Xunta de Galicia (Conselleria de Educacion); CEA-DEN; Cubaenergia, Cuba; IAEA (International Atomic Energy Agency); Swedish Research Council (VR); Knut & Alice Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science; United Kingdom Science and Technology Facilities Council (STFC); United States Department of Energy; United States National Science Foundation; State of Texas; State of Ohio FX The ALICE collaboration would like to thank all its engineers and technicians for their invaluable contributions to the construction of the experiment and the CERN accelerator teams for the outstanding performance of the LHC complex. The ALICE collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: State Committee of Science, Calouste Gulbenkian Foundation from Lisbon and Swiss Fonds Kidagan, Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); National Natural Science Foundation of China (NSFC), the Chinese Ministry of Education (CMOE) and the Ministry of Science and Technology of China (MSTC); Ministry of Education and Youth of the Czech Republic; Danish Natural Science Research Council, the Carlsberg Foundation and the Danish National Research Foundation; The European Research Council under the European Community's Seventh Framework Programme; Helsinki Institute of Physics and the Academy of Finland; French CNRS-IN2P3, the 'Region Pays de Loire', 'Region Alsace', 'Region Auvergne' and CEA, France; German BMBF and the Helmholtz Association; General Secretariat for Research and Technology, Ministry of Development, Greece; Hungarian OTKA and National Office for Research and Technology (NKTH); Department of Atomic Energy and Department of Science and Technology of the Government of India; Istituto Nazionale di Fisica Nucleare (INFN) and Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi", Italy; MEXT Grant-in-Aid for Specially Promoted Research, Japan; Joint Institute for Nuclear Research, Dubna; National Research Foundation of Korea (NRF); CONACYT, DGAPA, Mexico, ALFA-EC and the HELEN Program (High-Energy physics Latin-American-European Network); Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; Research Council of Norway (NFR); Polish Ministry of Science and Higher Education; National Authority for Scientific Research - NASR (Autoritatea Nationala pentru Cercetare Stiintifica - ANCS); Ministry of Education and Science of Russian Federation, International Science and Technology Center, Russian Academy of Sciences, Russian Federal Agency of Atomic Energy, Russian Federal Agency for Science and Innovations and CERN-INTAS; Ministry of Education of Slovakia; Department of Science and Technology, South Africa; CIEMAT, EELA, Ministerio de Educacion y Ciencia of Spain, Xunta de Galicia (Conselleria de Educacion), CEA-DEN, Cubaenergia, Cuba, and IAEA (International Atomic Energy Agency); Swedish Research Council (VR) and Knut & Alice Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science; United Kingdom Science and Technology Facilities Council (STFC); The United States Department of Energy, the United States National Science Foundation, the State of Texas, and the State of Ohio. NR 11 TC 26 Z9 26 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 661C EP 664C DI 10.1016/j.nuclphysa.2013.02.102 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100120 ER PT J AU Vitev, I AF Vitev, Ivan TI Electroweak Boson-Tagged Jet Event Asymmetries at the Large Hadron Collider SO NUCLEAR PHYSICS A LA English DT Article AB Tagged jet measurements provide a promising experimental channel to quantify the similarities and differences in the mechanisms of jet production in proton-proton and nucleus-nucleus collisions. We present the first calculation of the transverse momentum asymmetry of Z(0)/gamma*-tagged jet events and the momentum imbalance of gamma-tagged jet events in root s = 2.76 TeV reactions at the LHC. Our results combine the O(GF alpha(2)(s)), O(GF alpha(2)(s)) perturbative cross sections with the radiative and collisional processes that modify patron showers in the presence of dense QCD matter. We find that strong asymmetry momentum and imbalance, respectively, are generated in central Pb+Pb reactions that have little sensitivity to the fluctuations of the underlying soft hadronic background. We present theoretical model predictions for their shape and magnitude. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA. RP Vitev, I (reprint author), Los Alamos Natl Lab, Div Theoret, Mail Stop B283, Los Alamos, NM 87544 USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 701C EP 704C DI 10.1016/j.nuclphysa.2013.02.111 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100129 ER PT J AU Zhang, BW He, YC Wang, EK AF Zhang, Ben-Wei He, Yuncun Wang, Enke TI Jet probes of QCD matter: single jets and dijets in heavy-ion collisions SO NUCLEAR PHYSICS A LA English DT Article ID MULTIPLE PARTON SCATTERING; ENERGY-LOSS; NUCLEI AB Modifications of jets in the existence of a hot and dense QCD medium have recently attracted a lot of attentions. In this talk, we demonstrate how jet-medium interactions change the behavior of jets by offering examples of inclusive jet and dijet productions at O(alpha(3)(s)) in heavy ion collisions including initial-state cold nuclear effects and especially the final-state parton energy loss effect. The suppression of inclusive jet spectrum varying with jet radii and a flatter dijet momentum imbalance as compared those in hadron-hadron collisions are observed in high-energy nuclear collisions. C1 [Zhang, Ben-Wei; He, Yuncun; Wang, Enke] Cent China Normal Univ, Key Lab Quark & Lepton Phys, MOE, Wuhan 430079, Peoples R China. [Zhang, Ben-Wei; He, Yuncun; Wang, Enke] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. [Zhang, Ben-Wei] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Zhang, BW (reprint author), Cent China Normal Univ, Key Lab Quark & Lepton Phys, MOE, Wuhan 430079, Peoples R China. FU US Department of Energy, Office of Science; MOE of China [NCET-09-0411]; NSF of China [11075062, 11221504]; CCNU FX This research is supported by the US Department of Energy, Office of Science, and by the MOE of China with the Program NCET-09-0411, by NSF of China with Project Nos. 11075062 and 11221504, and in party by CCNU self-determined fundings. NR 20 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 799C EP 802C DI 10.1016/j.nuclphysa.2013.02.137 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100153 ER PT J AU Pang, LG Wang, Q Wang, XN AF Pang, Longgang Wang, Qun Wang, Xin-Nian TI Effect of longitudinal fluctuation in event-by-event (3+1)D hydrodynamics SO NUCLEAR PHYSICS A LA English DT Article ID NUCLEAR COLLISIONS; MODEL AB Hadron spectra and elliptic flow in relativistic heavy-ion collisions are studied in event-by-event (3+1)D ideal hydrodynamic simulations with fluctuating initial conditions given by the AMPT Monte Carlo model. Both the coherent soft gluon production from wounded nucleons and incoherent mini-jet production in semi-hard parton scatterings are considered. These partons take part in parton cascade and are assumed to be locally thermalized. They provide the fluctuating initial conditions for hydrodynamic simulations with a Gaussian smearing. Effects of both transverse and longitudinal fluctuations are studied. The initial fluctuations along rapidity direction lead to expanding hot spots in longitudinal direction, which will reduce elliptic flow and the yield of particles at high transverse momentum. The intrinsic correlation introduced in the fluctuating initial conditions is also found to influence the di-hadron correlation of the final hadrons. C1 [Pang, Longgang; Wang, Xin-Nian] Cent China Normal Univ, Key Lab Quarks & Lepton Phys MOE, Wuhan 430079, Peoples R China. [Pang, Longgang; Wang, Xin-Nian] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. [Pang, Longgang; Wang, Qun] Univ Sci & Technol China, Interdisciplinaiy Ctr Theoret Study, Hefei 230026, Peoples R China. [Pang, Longgang; Wang, Qun] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China. [Pang, Longgang; Wang, Xin-Nian] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Pang, LG (reprint author), Cent China Normal Univ, Key Lab Quarks & Lepton Phys MOE, Wuhan 430079, Peoples R China. OI Wang, Xin-Nian/0000-0002-9734-9967 NR 6 TC 7 Z9 7 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 811C EP 814C DI 10.1016/j.nuclphysa.2013.02.140 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100156 ER PT J AU Dusling, K Epelbaum, T Gelis, F Venugopalan, R AF Dusling, Kevin Epelbaum, Thomas Gelis, Francois Venugopalan, Raju TI Quantum chaos in the quantum fluid: spectrum of initial fluctuations in the little bang SO NUCLEAR PHYSICS A LA English DT Article ID COLOR GLASS CONDENSATE; GLUON DISTRIBUTION-FUNCTIONS; TRANSVERSE-MOMENTUM; NUCLEAR COLLISIONS; THERMALIZATION; EVOLUTION; PLASMA; QUARK; FIELD AB We outline how unstable quantum fluctuations decohere classical fields in heavy ion collisions, leading to an equation of state and hydrodynamics. Explicit numerical realization of this framework in a scalar phi(4) theory demonstrates that anomalously low values of eta/s can be generated. C1 [Dusling, Kevin] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA. [Epelbaum, Thomas; Gelis, Francois] CEA, DSM Saclay, CNRS, Inst Phys Theor,URA 2306, F-91191 Gif Sur Yvette, France. [Venugopalan, Raju] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Dusling, K (reprint author), N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA. OI Dusling, Kevin/0000-0001-9598-0416 FU DOE [FG02-03ER41260, DE-ACO2-98CH10886]; Agence Nationale de la Recherche [11-BSO4-015-01] FX K.D and R.V are respectivey supported under DOE Contract Nos.DE-FG02-03ER41260 and DE-ACO2-98CH10886. F.G and T.E are supported by Agence Nationale de la Recherche project no. 11-BSO4-015-01. NR 35 TC 2 Z9 2 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 819C EP 822C DI 10.1016/j.nuclphysa.2013.02.142 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100158 ER PT J AU Blaizot, JP Gelis, F Liao, JF McLerran, L Venugopalan, R AF Blaizot, Jean-Paul Gelis, Francois Liao, Jinfeng McLerran, Larry Venugopalan, Raju TI Themialization and Bose-Einstein Condensation in Overpopulated Glasma SO NUCLEAR PHYSICS A LA English DT Article DE quark-gluon plasma; Glasma; heavy ion collision; Bose-Einstein Condensation ID THERMALIZATION AB We report recent progress on understanding the thermalization of the quark-gluon plasma during the early stage in a heavy ion collision. The initially high overpopulation in the far-fromequilibrium gluonic matter ("Glasma") is shown to play a crucial role. The strongly interacting nature (and thus fast evolution) naturally arises as an emergent property of this pre-equilibrium matter where the intrinsic coupling is weak but the highly occupied gluon states coherently amplify the scattering. A possible transient Bose-Einstein Condensate is argued to form dynamically on a rather general ground. We develop a kinetic approach for describing its evolution toward thermalization as well as the onset of condensation. C1 [Blaizot, Jean-Paul; Gelis, Francois] CEA, DSM Saclay, Inst Phys Theor, CNRS,URA 2306, F-91191 Gif Sur Yvette, France. [Liao, Jinfeng] Indiana Univ, Dept Phys, Bloomington, IN 47408 USA. [Liao, Jinfeng] Indiana Univ, CEEM, Bloomington, IN 47408 USA. [McLerran, Larry; Venugopalan, Raju] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Liao, Jinfeng; McLerran, Larry] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. RP Blaizot, JP (reprint author), CEA, DSM Saclay, Inst Phys Theor, CNRS,URA 2306, F-91191 Gif Sur Yvette, France. NR 15 TC 13 Z9 13 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 829C EP 832C DI 10.1016/j.nuclphysa.2013.02.144 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100160 ER PT J AU Stasto, A Xiao, BW Zaslavsky, D AF Stasto, Anna Xiao, Bo-Wen Zaslavsky, David TI Drell-Yan Lepton-Pair-Jet Correlation in pA Collisions SO NUCLEAR PHYSICS A LA English DT Article ID HIGH-ENERGY SCATTERING AB Determining the dipole model unintegrated gluon distribution (UGD) is a problem of significant interest in small-x physics. Here we relate the dipole gluon distribution to the angular correlation function of the process pA -> l (l) over bar pi X-0, which provides a clean probe of the nuclear structure, and compute numerical predictions for the correlation function based on three models for the UGD: the GBW model, and BK evolution with fixed and running coupling. With all three models, the correlation exhibits an interesting double-peak structure, but the BK evolution is necessary to reproduce the near-side emission peak. C1 [Stasto, Anna; Xiao, Bo-Wen; Zaslavsky, David] Penn State Univ, Dept Phys, University Pk, PA 16802 USA. [Stasto, Anna] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Stasto, Anna] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, Krakow, Poland. RP Stasto, A (reprint author), Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA. EM astasto@phys.psu.edu; bux10@psu.edu; dzaslavs@phys.psu.edu OI Zaslavsky, David/0000-0002-6404-2205 NR 10 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 837C EP 840C DI 10.1016/j.nuclphysa.2013.02.146 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100162 ER PT J AU Chirilli, G Xiao, BW Yuan, F AF Chirilli, Giovanni Xiao, Bo-Wen Yuan, Feng TI The NLO inclusive forward hadron production in pA collisions SO NUCLEAR PHYSICS A LA English DT Article ID COLOR GLASS CONDENSATE; DEUTERON-GOLD COLLISIONS; SATURATION PHYSICS; LARGE NUCLEI; SMALL-X; SCATTERING; QCD AB Recently, the one-loop factorization for inclusive hadron productions in pA collisions in the saturation formalism has been established via the complete next-to-leading order calculation. The differential cross section is written into a factorization form in the coordinate space at the next-to-leading order, while the naive form of the convolution in the transverse momentum space does not hold. The rapidity divergence with small-x dipole gluon distribution of the nucleus is factorized into the energy evolution of the dipole gluon distribution function, which is known as the Balitsky-Kovchegov equation. Furthermore, the collinear divergences associated with the incoming parton distribution of the nucleon and the outgoing fragmentation function of the final state hadron are factorized into the splittings of the associated parton distribution and fragmentation functions, which allows us to reproduce the well-known DGLAP equation. The hard coefficient function, which is finite and free of divergence of any kind, is evaluated at one-loop order. This result is important, not only for the phenomenological applications to the inclusive hadron production in p-A collisions at RHIC and future LHC experiment, but also for theoretically promoting the rigorous developments towards factorizations in small-x physics. C1 [Chirilli, Giovanni; Yuan, Feng] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Xiao, Bo-Wen] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. [Xiao, Bo-Wen] Penn State Univ, Dept Phys, University Pk, PA 16802 USA. RP Chirilli, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RI Yuan, Feng/N-4175-2013 NR 29 TC 1 Z9 1 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 841C EP 844C DI 10.1016/j.nuclphysa.2013.02.147 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100163 ER PT J AU Xiao, BW Yuan, F AF Xiao, Bo-Wen Yuan, Feng TI Two Particle Correlation to Map the Phase Structure of Cold Nuclear Matter SO NUCLEAR PHYSICS A LA English DT Article ID LOW-X; COLLISIONS; SATURATION AB We demonstrated that the two-particle correlations in pA and eA collisions can be used to investigate the phase structure of the cold nuclear matter at small-x. C1 [Xiao, Bo-Wen] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. [Xiao, Bo-Wen; Yuan, Feng] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Xiao, BW (reprint author), Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. RI Yuan, Feng/N-4175-2013 FU U.S. Department of Energy [DE-AC02-05CH11231] FX In summary, we have demonstrated that the two-particle correlations in p A collisions can be used to map out the phase structure of cold nuclear matter. A rough estimate of one data point in the saturation region was draw from the experimental observations at RHIC. Future experiments at both RHIC and LHC shall help to extend to a wider kinematic region. This work was supported in part by the U.S. Department of Energy under the contracts DE-AC02-05CH11231. NR 24 TC 0 Z9 0 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 845C EP 848C DI 10.1016/j.nuclphysa.2013.02.148 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100164 ER PT J AU Ratti, C Borsanyi, S Endrodi, G Fodor, Z Katz, SD Krieg, S Schroeder, C Szabo, KK AF Ratti, Claudia Borsanyi, Szabolcs Endrodi, Gergely Fodor, Zoltan Katz, Sandor D. Krieg, Stefan Schroeder, Chris Szabo, Kalman K. TI Lattice QCD thermodynamics in the presence of the charm quark SO NUCLEAR PHYSICS A LA English DT Article ID TEMPERATURE AB We present an update on the 2+1 flavor QCD equation of state of the Wuppertal-Budapest Collaboration, extending our previous studies to finer lattice spacings and providing a continuum extrapolation of the trace anomaly. A Symanzik improved gauge and a stout-link improved staggered fermion action is utilized. We also present preliminary results for the fully dynamical charmed equation of state. C1 [Ratti, Claudia] Univ Turin, Dipartimento Fis, I-10125 Turin, Italy. [Ratti, Claudia] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Borsanyi, Szabolcs; Fodor, Zoltan; Katz, Sandor D.; Krieg, Stefan; Schroeder, Chris; Szabo, Kalman K.] Berg Univ Wuppertal, D-42119 Wuppertal, Germany. [Endrodi, Gergely] Univ Regensburg, D-93040 Regensburg, Germany. [Fodor, Zoltan; Krieg, Stefan] Forschungszentrum Julich, Julich Supercomp Ctr, IAS, D-52425 Julich, Germany. [Fodor, Zoltan; Katz, Sandor D.] Eotvos Lorand Univ, Inst Theoret Phys, H-1117 Budapest, Hungary. [Schroeder, Chris] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Ratti, C (reprint author), Univ Turin, Dipartimento Fis, I-10125 Turin, Italy. RI Katz, Sandor/A-4154-2011; OI Krieg, Stefan/0000-0002-8417-9823 FU Deutsche Forschungsgemeinschaft [SFB- TR 55]; EU/ERC [208740]; Italian Ministry of Education, Universities and Research [RBFR0814TT] FX Computations were carried out at the universities Wuppertal and Budapest on GPU [21] clusters, on the Wuppertal QPACE machine and at Forschungszentrum Juelich. This work is supported in part by the Deutsche Forschungsgemeinschaft grant SFB- TR 55 and by the EU (FP7/2007-2013)/ERC no. 208740. The work of C. R. is supported by funds provided by the Italian Ministry of Education, Universities and Research under the Firb Research Grant RBFR0814TT. NR 21 TC 8 Z9 8 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 869C EP 872C DI 10.1016/j.nuclphysa.2013.02.153 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100169 ER PT J AU Mukherjee, S AF Mukherjee, Swagato TI Freeze-out Conditions from Lattice QCD SO NUCLEAR PHYSICS A LA English DT Article AB We describe a procedure for determination of freeze-out parameters of heavy-ion. collisions' through direct comparisons between experimentally measured higher order cumulants of charge fluctuations and first principle (lattice) QCD calculations. C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Mukherjee, S (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. OI Mukherjee, Swagato/0000-0002-3824-1008 FU U.S. Department of Energy [DE-AC02-98CH10886] FX The author is supported by contract DE-AC02-98CH10886 with the U.S. Department of Energy. NR 4 TC 0 Z9 0 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 873C EP 876C DI 10.1016/j.nuclphysa.2013.02.154 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100170 ER PT J AU Bazavov, A AF Bazavov, Alexei CA HotQCD Collaboration TI The QCD equation of state with 2+1 flavors of Highly Improved Staggered Quarks (HISQ) SO NUCLEAR PHYSICS A LA English DT Article AB One of the fundamental properties of the quark-gluon plasma (QGP), the equation of state, is a subject of extensive studies in lattice QCD and an essential requirement for the correct hydrodynamic modeling of heavy-ion collisions. Lattice QCD provides first-principle calculations for the physics in the non-perturbative regime. In this contribution, we report on recent progress by the HotQCD collaboration in studying the 2+1 flavor equation of state on lattices with the temporal extent N-tau = 6, 8, 10 and 12 in Highly Improved Staggered Quarks (HISQ) discretization scheme. Comparisons with equation of state calculations with different fermion actions are also discussed. C1 [Bazavov, Alexei; HotQCD Collaboration] Brookhaven Natl Lab, Upton, NY 11793 USA. RP Bazavov, A (reprint author), Brookhaven Natl Lab, Upton, NY 11793 USA. NR 5 TC 6 Z9 6 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 877C EP 880C DI 10.1016/j.nuclphysa.2013.02.155 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100171 ER PT J AU Das, S AF Das, Sabita CA STAR Collaboration TI Centrality dependence of freeze-out parameters from the beam energy scan at STAR SO NUCLEAR PHYSICS A LA English DT Article ID PHASE-DIAGRAM; COLLISIONS AB The STAR experiment at RHIC has a unique capability of measuring identified hadrons over a wide range of pseudorapidity (eta), transverse momentum (p(T)), and azimuthal angle (phi) acceptance. The data collected (root s(NN) = 7.7, 11.5, and 39 GeV) in its beam energy scan (BES) program provide a chance to investigate the final hadronic state freeze-out conditions of ultrarelativistic Au+Au collisions. The particle ratios are used to compare to a statistical model calculation using both grand canonical and strangeness canonical ensembles to extract the chemical freeze-out parameters. The P-T distributions are fitted to calculations using a blast-wave model to obtain the kinetic freeze-out parameters. We discuss the centrality dependence of the extracted chemical and kinetic freeze-out parameters at these lower energies. C1 [Das, Sabita] Brookhaven Natl Lab, Upton, NY 11973 USA. [Das, Sabita] Inst Phys, Bhubaneswar 751005, Orissa, India. RP Das, S (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. FU RHIC Operations Group at BNL; RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium; Office of NP within the U.S. DOE Office of Science; Office of HEP within the U.S. DOE Office of Science; U.S. NSF; Sloan Foundation; CNRS/IN2P3; FAPESP CNPq of Brazil; Ministry of Ed. and Sci. of the Russian Federation; NNSFC of China; CAS of China; MoST of China; MoE of China; MSMT of the Czech Republic; FOM of the Netherlands; NWO of the Netherlands; DAE of India; DST of India; CSIR of India; Polish Ministry of Sci. and Higher Ed.; National Research Foundation [NRF-2012004024]; Ministry of Sci., Ed. and Sports of the Rep. of Croatia; RosAtom of Russia; GA of the Czech Republic FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Offices of NP and HEP within the U.S. DOE Office of Science, the U.S. NSF, the Sloan Foundation, CNRS/IN2P3, FAPESP CNPq of Brazil, Ministry of Ed. and Sci. of the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST, and CSIR of India, Polish Ministry of Sci. and Higher Ed., National Research Foundation (NRF-2012004024), Ministry of Sci., Ed. and Sports of the Rep. of Croatia, and RosAtom of Russia. NR 13 TC 15 Z9 15 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 891C EP 894C DI 10.1016/j.nuclphysa.2013.02.158 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100174 ER PT J AU Mitchell, JT AF Mitchell, Jeffery T. CA Collaboration, P TI The RHIC Beam Energy Scan Program: Results from the PHENIX Experiment SO NUCLEAR PHYSICS A LA English DT Article ID HEAVY-ION COLLISIONS; FLUCTUATIONS AB The PHENIX Experiment at RHIC has conducted a beam energy scan at several collision energies in order to search for signatures of the QCD critical point and the onset of deconfinement. PHENIX has conducted measurements of transverse energy production, muliplicity fluctuations, and the skewness and kurtosis of net charge distributions. The data analyzed to date show no significant indications of the presence of the critical point. C1 [Mitchell, Jeffery T.; Collaboration, P] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Mitchell, JT (reprint author), Brookhaven Natl Lab, Bldg 510C,POB 5000, Upton, NY 11973 USA. FU Office of Nuclear Physics in the Office of Science of the Department of Energy (U.S.A); National Science Foundation (U.S.A); Abilene Christian University Research Council (U.S.A); Research Foundation of SUNY (U.S.A); Ministry of Education, Culture, Sports, Science, and Technology (Japan); Japan Society for the Promotion of Science (Japan); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Brazil); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil); Natural Science Foundation of China (P. R. China); Ministry of Education, Youth and Sports (Czech Republic); Centre National de la Recherche Scientifique (France); Commissariat l'Energie Atomique (France); Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung (Germany); Deutscher Akademischer Austausch Dienst (Germany); Alexander von Humboldt Stiftung (Germany); Hungarian National Science Fund, OTKA (Hungary); Department of Atomic Energy (India); Department of Science and Technology (India); Israel Science Foundation (Israel); National Research Foundation (Korea); WCU program of the Ministry Education Science and Technology (Korea); Ministry of Education and Science (Russia); Russian Academy of Sciences (Russia); Federal Agency of Atomic Energy (Russia); VR Foundation (Sweden); Wallenberg Foundation (Sweden); U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union; US-Israel Binational Science Foundation FX We thank the staff of the Collider-Accelerator and Physics Departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (U.S.A), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil), Natural Science Foundation of China (P. R. China), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat a l'Energie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France), Bundesministerium fur Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), Hungarian National Science Fund, OTKA (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), National Research Foundation and WCU program of the Ministry Education Science and Technology (Korea), Ministry of Education and Science, Russian Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and Wallenberg Foundation (Sweden), the U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, and the US-Israel Binational Science Foundation. NR 8 TC 15 Z9 15 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 903C EP 906C DI 10.1016/j.nuclphysa.2013.02.161 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100177 ER PT J AU Haggerty, JS AF Haggerty, John S. CA PHENIX Collaboration TI The sPHENIX Barrel Upgrade: Jet Physics and Beyond SO NUCLEAR PHYSICS A LA English DT Article AB The past decade of heavy ion physics at RHIC has produced many surprising discoveries and puzzles. Currently the experiments at the LHC are providing a first look at things to come: a burgeoning program for studying the quark-gluon plasma with reconstructed jets. The PHENIX collaboration has developed a long term plan involving a series of upgrades designed to expand the physics capabilities and make use of the full enhanced luminosity at RHIC. With increased coverage and the addition of hadronic calorimetry, we demonstrate that the sPHENIX upgrade will be well positioned to provide a broad and exciting program of jet probe measurements. Sampling 50 billion Au+Au events annually, we will collect 10 million jets with transverse energy above 20 GeV and 100 thousand jets above 40 GeV. With the addition of new tracking layers and an EM preshower, a crucial program of upsilon measurements, as well as neutral pion measurements with a 40 GeV/c reach, can be made in a flexible accelerator facility capable of providing a diverse range of collision systems across many beam energies. And, ultimately, the sPHENIX detector will provide the base for staging a future electron-ion collider detector at eRHIC. C1 [Haggerty, John S.; PHENIX Collaboration] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Haggerty, JS (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 925C EP 928C DI 10.1016/j.nuclphysa.2013.02.166 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100182 ER PT J AU Seele, J AF Seele, Joseph CA PHENIX Collaboration TI The sPHENIX Forward Upgrade (and ePHENIX) SO NUCLEAR PHYSICS A LA English DT Article AB PHENIX is planning a large upgrade for the next decade, sPHENIX, to answer many of the questions spurred by our discoveries during the last decade. This sPHENIX upgrade includes replacing the central arm spectrometers with an open geometry solenoid surrounded by electromagnetic and hadronic calorimetry. With this new open geometry, we plan to upgrade our detector at forward rapidities with additional calorimetry and tracking. The larger acceptance will improve our access to low-x distributions in heavy nuclei, extend our measurements of quarkonia in p+p, d+A, and A+A to more forward rapidities, and allow for measurements away from the Bjorken plateau expanding the study of the high energy heavy ion environment. In addition to heavy ion and cold nuclear matter measurements, the envisioned forward rapidity upgrade will allow for a more systematic approach to understanding the large transverse spin measurements seen at RHIC as well as serve as the baseline detector for a future eRHIC detector, ePHENIX. C1 [Seele, Joseph; PHENIX Collaboration] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. RP Seele, J (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. NR 5 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 933C EP 936C DI 10.1016/j.nuclphysa.2013.02.168 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100184 ER PT J AU Lee, JH AF Lee, J. H. TI Exploring Gluonic Matter with Electron-Ion Collisions SO NUCLEAR PHYSICS A LA English DT Article ID COLOR GLASS CONDENSATE; SATURATION AB Light and heavy nuclei probed in deep inelastic scattering and diffractive processes in the high-energy regime open a new precision window into fundamental questions in QCD. The proposed Electron-Ion Collider (EIC) is a new high-energy and high-luminosity electron-ion machine. The design offers unprecedented access to explore the nature of QCD matter and strong color fields. In particular, the new collider will allow us to reach and explore the regime where the gluon density saturates, one of the fundamental outstanding questions in QCD, and test the validity of the Color Glass Condensate approach. Selected key measurements in electron-ion collisions with an emphasis on probing and characterizing the gluonic matter are discussed. C1 Brookhaven Natl Lab, Upton, NY 11973 USA. RP Lee, JH (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. NR 13 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 949C EP 952C DI 10.1016/j.nuclphysa.2013.02.172 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100188 ER PT J AU Pisarski, RD Kashiwa, K Skokov, V AF Pisarski, Robert D. Kashiwa, Koji Skokov, Vladimir TI Quasi-particle and matrix models of the semi Quark Gluon Plasma SO NUCLEAR PHYSICS A LA English DT Article AB We make a simple observation about two models used to treat the region near the critical temperature of QCD, quasiparticle and matrix models. While they appear very different, we show how these two models might be related. We also present results for the temperature dependence of the ratio of the shear viscosity to the entropy in a matrix model, and suggest that quasi-particle models may behave similarly. C1 [Pisarski, Robert D.; Skokov, Vladimir] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Pisarski, Robert D.; Kashiwa, Koji] Brookhaven Natl Lab, RIKEN BNL, Upton, NY 11973 USA. RP Pisarski, RD (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. OI Skokov, Vladimir/0000-0001-7619-1796 NR 14 TC 4 Z9 4 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 973C EP 976C DI 10.1016/j.nuclphysa.2013.02.177 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100193 ER PT J AU Lin, S Erdmenger, J Hoyos, C AF Lin, Shu Erdmenger, Johanna Hoyos, Carlos TI Evolution of singularities in unequal time correlator in thermalization of quark gluon plasma SO NUCLEAR PHYSICS A LA English DT Article AB We studied thermalization of strongly coupled gauge theory using a gravitational collapse model. In particular, we studied unequal time correlator for the glue ball operator. We found singularities of the correlator for zero momentum sector is consistent with a geometric optics picture in the gravitational theory. The singularities of the correlator indicates strong temporal correlation, thus the time after which the singularities disappear provides a measure of the temporal decoherence in the thermalization process. C1 [Lin, Shu] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. RP Lin, S (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. RI Hoyos Badajoz, Carlos/A-9181-2017 NR 8 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 977C EP 980C DI 10.1016/j.nuclphysa.2013.02.178 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100194 ER PT J AU Ovanesyan, G AF Ovanesyan, Grigory TI Medium-induced splitting kernels from SCETG SO NUCLEAR PHYSICS A LA English DT Article ID COLLINEAR EFFECTIVE THEORY AB Using the framework of soft-collinear effective theory with Glauber gluons (SCETG), we evaluate medium-induced splitting kernels. Because of the power counting of the effective theory, our results are valid for arbitrary, not necessarily small values of the energy fraction x taken by the emitted parton. In this framework we prove the factorization from the hard process and gauge invariance of the splitting kernels, we also show how nuclear recoil and the phase space cuts can be implemented into the phenomenology. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA. RP Ovanesyan, G (reprint author), Los Alamos Natl Lab, Div Theoret, Mail Stop B283, Los Alamos, NM 87544 USA. NR 14 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 981C EP 984C DI 10.1016/j.nuclphysa.2013.02.179 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100195 ER PT J AU Basar, G Dunne, GV Kharzeev, DE AF Basar, Goekce Dunne, Gerald V. Kharzeev, Dmitri E. TI Instantons and Sphalerons in a Magnetic Field SO NUCLEAR PHYSICS A LA English DT Article AB I study the properties of the Euclidean Dirac equation for.a light fermion in the presence of both a constant abelian magnetic field and an SU(2) instanton. In particular, I analyze the zero modes analytically in various limits, in order to compare with recent lattice QCD results, and study the implications for the electric dipole moment of the instanton induced by the magnetic field. I also present a holographic computation of the sphaleron rate of a strongly coupled plasma in a the presence of a constant magnetic flux and discuss its physical implications on heavy ion collisions. C1 [Basar, Goekce; Kharzeev, Dmitri E.] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA. [Dunne, Gerald V.] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA. [Kharzeev, Dmitri E.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Basar, G (reprint author), SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA. RI Basar, Gokce/O-6277-2016 FU US Department of Energy [DE-FG02-92ER40716, DE-ACO2-98CH10886, DE-FG-88ER41723] FX This work was supported by the US Department of Energy under grants DE-FG02-92ER40716 (GB and GD) and DE-ACO2-98CH10886, DE-FG-88ER41723 (GB and DK). NR 13 TC 0 Z9 0 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD MAY 2 PY 2013 VL 904 BP 988C EP 991C DI 10.1016/j.nuclphysa.2013.02.181 PG 4 WC Physics, Nuclear SC Physics GA 165LT UT WOS:000320486100197 ER PT J AU Weis, CD Schenkel, T AF Weis, Christoph D. Schenkel, Thomas TI SOLID-STATE PHYSICS Single spins in silicon see the light SO NATURE LA English DT Editorial Material ID QUANTUM; SEMICONDUCTORS C1 [Weis, Christoph D.; Schenkel, Thomas] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Accelerator & Fus Res Div, Berkeley, CA 94720 USA. RP Weis, CD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Accelerator & Fus Res Div, Berkeley, CA 94720 USA. EM t_schenkel@lbl.gov NR 9 TC 0 Z9 0 U1 2 U2 26 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD MAY 2 PY 2013 VL 497 IS 7447 BP 46 EP 47 PG 3 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 134OK UT WOS:000318221500028 PM 23636392 ER PT J AU Zawadzki, P AF Zawadzki, Pawel TI Absorption Spectra of Trapped Holes in Anatase TiO2 SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID CHARGE-CARRIER DYNAMICS; DIFFUSE-REFLECTANCE SPECTROSCOPY; DENSITY-FUNCTIONAL THEORY; NANOCRYSTALLINE TIO2; SMALL POLARONS; FEMTOSECOND; ELECTRON; NANOPARTICLES; SEPARATION; PARTICLES AB Charge transport to surface reactive sites is a crucial step in any, photocatalytic process. In the most popular photocatalyst-the anatase TiO2-this step is complicated by the fact that photogenerated carriers can trap.. Studies of charge trapping and transfer, in anatase often employ transient absorption, spectroscopy (TAS), but the understanding of the optical absorption due to trapped carriers in TiO2 is incomplete. On the basis of the generalized Delta self-consistent field density functional theory (Delta-SCF DFT) calculations, we attribute the experimentally observed absorption band at 430-550 nm to the interpolaron transitions of the stable surface and subsurface O- centers and associate the blue shift of the spectra after the photoexcitation with holes migration to surfaces. We also suggest that subsurface hole trapping may contribute to generally lower photocatalytic performance of the anatase (101) surface compared to the (001) surface. C1 [Zawadzki, Pawel] Tech Univ Denmark, Dept Phys, Ctr Atom Scale Mat Design, DK-2800 Lyngby, Denmark. RP Zawadzki, P (reprint author), Natl Renewable Lab, Golden, CO 80401 USA. EM pawel.zawadzki@nrel.gov FU Danish Center for Scientific Computing; Danish Council for Technology and Innovation's FTP program; Danish Council for Strategic Research though the HyCycle Center [2104-07-0041] FX The author wishes to thank Dr. Jun Yan and Dr. Georgios Tritsaris for proofreading of the manuscript. This work was supported by the Danish Center for Scientific Computing. Support from the Danish Council for Technology and Innovation's FTP program and the Danish Council for Strategic Research though the HyCycle Center (No. 2104-07-0041) is acknowledged. NR 40 TC 10 Z9 10 U1 3 U2 69 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD MAY 2 PY 2013 VL 117 IS 17 BP 8647 EP 8651 DI 10.1021/jp400082u PG 5 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 138UX UT WOS:000318536600008 ER PT J AU He, QG Li, Q Khene, S Ren, XM Lopez-Suarez, FE Lozano-Castello, D Bueno-Lopez, A Wu, G AF He, Qinggang Li, Qing Khene, Samson Ren, Xiaoming Lopez-Suarez, Franz E. Lozano-Castello, Dolores Bueno-Lopez, Agustin Wu, Gang TI High-Loading Cobalt Oxide Coupled with Nitrogen-Doped Graphene for Oxygen Reduction in Anion-Exchange-Membrane Alkaline Fuel Cells SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID TRANSITION-METAL CHALCOGENIDES; ONION-LIKE CARBON; ELECTROCHEMICAL REDUCTION; METHANOL ELECTROOXIDATION; HEAT-TREATMENT; O-2 REDUCTION; CATALYSTS; ELECTROCATALYSTS; PERFORMANCE; NANOPARTICLES AB A new nanocomposite catalyst consisting of high loading cobalt oxide (CoO) on nitrogen doped reduced graphene oxide (rGO) for oxygen reduction reaction (ORR) was prepared in this work Its high activity for the ORR in alkaline electrolyte was determined using the rotating disk electrode technique, and further confirmed in real alkaline membrane fuel cells. A combination of physicochemical characterization (e.g., X-ray absorption and X-ray photoelectron spectra) and density functional theory (DFT) calculation suggests that cobalt(II) cations in the composite catalyst may coordinate with the pyridinic nitrogen atoms doped into graphene planes, most likely the active species for the ORR Especially, the DFT calculations indicate that a stable rGO(N)-Co(II)-O-Co(II)-rGO(N) structure can be formed in the nitrogen-doped graphene catalist. Kinetic parameter analysis shows a high selectivity of four electron reduction on the composite catalyst during the ORR with an average electron transfer number of 3.75. A synergistic effect between the rGO(N) and CoO may exist, yielding a much higher catalytic activity on the CoO/rGO(N) catalyst, compared to either rGO(N) or CoO controls. The novel synthesis procedure utilizing rGO(N) to further couple Co(II) yields a high loading of Co species (24.7 wt %). Thus, a relatively thinner cathode in fuel cell can accommodate more active Co species and facilitate O-2 transfer. Due to the high intrinsic activity and efficient mass transport, the CoO-rGO(N) ORR catalyst achieved approaching performance to state-of-the-art Pt/C cathodes in anion-exchange-membrane alkaline fuel cells. C1 [He, Qinggang] Univ Calif Los Angeles, Dept Mol & Med Pharmacol, Los Angeles, CA 90095 USA. [Li, Qing; Wu, Gang] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. [Khene, Samson] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa. [Ren, Xiaoming] USA, Res Lab, Adelphi, MD 20783 USA. [Lopez-Suarez, Franz E.; Lozano-Castello, Dolores; Bueno-Lopez, Agustin] Univ Alicante, Dept Inorgan Chem, E-03080 Alicante, Spain. RP He, QG (reprint author), Univ Calif Los Angeles, Dept Mol & Med Pharmacol, Los Angeles, CA 90095 USA. EM QHe@mednet.ucla.edu; wugang@lanl.gov RI Wu, Gang/E-8536-2010; Li, Qing/G-4502-2011; ren, xiaoming/F-3953-2011; He, Qinggang/O-7639-2014; OI Wu, Gang/0000-0003-4956-5208; Li, Qing/0000-0003-4807-030X; He, Qinggang/0000-0002-7693-8017; Lopez-Suarez, Franz E/0000-0003-2670-7509; Bueno Lopez, Agustin/0000-0002-5434-6459 FU Los Alamos National Laboratory Early Career Laboratory-Directed Research and Development (LDRD) Program FX We would like to thank B. Shyam and F. McLarnon for helpful comments and suggestions during preparation of this manuscript. The financial support from the Los Alamos National Laboratory Early Career Laboratory-Directed Research and Development (LDRD) Program for this work is gratefully acknowledged. NR 69 TC 93 Z9 93 U1 15 U2 300 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD MAY 2 PY 2013 VL 117 IS 17 BP 8697 EP 8707 DI 10.1021/jp401814f PG 11 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 138UX UT WOS:000318536600013 ER PT J AU Vecchietti, J Collins, S Xu, WQ Barrio, L Stacchiola, D Calatayud, M Tielens, F Delgada, JJ Bonivardi, A AF Vecchietti, Julia Collins, Sebastian Xu, Wenqian Barrio, Laura Stacchiola, Dario Calatayud, Monica Tielens, Frederik Jose Delgada, Juan Bonivardi, Adrian TI Surface Reduction Mechanism of Cerium-Gallium Mixed Oxides with Enhanced Redox Properties SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID INITIO MOLECULAR-DYNAMICS; GAS SHIFT REACTION; CATALYTIC-ACTIVITY; METAL-OXIDE; ULTRASOFT PSEUDOPOTENTIALS; NANOMETER LEVEL; BEHAVIOR; GOLD; TIO2; TRANSITION AB The doping of CeO2 with different types of cations has been recognized as a significant factor in controlling the oxygen vacancies and improving the oxygen mobility. Thus, the catalytic properties of these materials might be determined by modifying the redox properties of ceria. A combined experimental and theoretical study of the redox properties of gallium doped cerium dioxide is presented. Infrared spectroscopy and time resolved X-ray diffraction were used for temperature programmed reduction (H-2) and oxidation (with, O-2 and H2O) studies. Additionally, X-ray absorption near edge spectroscopy shows that only Ce4+ is reduced to Ce3+ in the ceria-gallia mixed oxides when annealed up to 623 K. The oxygen storage capacity (OSC) measurements show a, pronounced, enhancement on the reduction of ceria by gallium doping. Theoretical calculations by density functional theory (DFT) confirm the higher reducibility of gallium doped ceria oxides and give a molecular description of the stabilization of the doped material. On the basis of infrared spectroscopic measurements, a novel mechanism is proposed for the surface reduction of Ce4+ to Ce3+ where Ga-H species are suggested to be directly involved in the process. In addition, the reoxidation by H2O was precluded in the gallium doped ceria oxide. C1 [Vecchietti, Julia; Collins, Sebastian; Bonivardi, Adrian] Univ Nacl Litoral, Inst Desarrollo Tecnol Ind Quim, RA-3000 Santa Fe, Argentina. [Vecchietti, Julia; Collins, Sebastian; Bonivardi, Adrian] Consejo Nacl Invest Cient & Tecn, RA-3000 Santa Fe, Argentina. [Xu, Wenqian; Barrio, Laura; Stacchiola, Dario] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Calatayud, Monica] Univ Paris 06, Lab Chim Theor, F-75005 Paris, France. [Calatayud, Monica] CNRS, UMR 7616, F-75005 Paris, France. [Tielens, Frederik] Univ Paris 06, Lab React Surface, F-75005 Paris, France. [Tielens, Frederik] CNRS, UMR 7197, F-75005 Paris, France. [Jose Delgada, Juan] Univ Cadiz, Fac Ciencias, Dept Ciencias Mat Ingn Met & Quim Inorgan, E-11510 Puerto Real, Spain. RP Bonivardi, A (reprint author), Univ Nacl Litoral, Inst Desarrollo Tecnol Ind Quim, Guemes 3450, RA-3000 Santa Fe, Argentina. EM abonivar@santafe-conciet.gov.ar RI Tielens, Frederik/E-3176-2010; Barrio, Laura/A-9509-2008; Stacchiola, Dario/B-1918-2009; Xu, Wenqian/M-5906-2013; Calatayud, Monica/C-8308-2013; Delgado Jaen, Juan Jose/C-4086-2015 OI Tielens, Frederik/0000-0002-6760-6176; Barrio, Laura/0000-0003-3496-4329; Stacchiola, Dario/0000-0001-5494-3205; Calatayud, Monica/0000-0003-0555-8938; Delgado Jaen, Juan Jose/0000-0001-7956-1166 FU Eulanest [042]; PME [2006 311]; CAID [2009 J379]; MINCyT-ECOS [A09E01]; US DOE, Office of BES [DE-AC02-98CH10086]; HPC GENCI-CINES/IDRIS [2011-x2011082131] FX This work has been financed by Eulanest 042, PME 2006 311, CAID 2009 J379, and MINCyT-ECOS A09E01. The work at BNL was financed by the US DOE, Office of BES (DE-AC02-98CH10086). M.C. and F.T. are grateful to HPC GENCI-CINES/IDRIS (grant 2011-x2011082131) and the CCRE-DSI of Universite P. M. Curie for computational resources. NR 39 TC 12 Z9 12 U1 2 U2 57 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD MAY 2 PY 2013 VL 117 IS 17 BP 8822 EP 8831 DI 10.1021/jp400285b PG 10 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 138UX UT WOS:000318536600027 ER PT J AU Chen, ST Jenkins, SV Tao, J Zhu, YM Chen, JY AF Chen, Shutang Jenkins, Samir V. Tao, Jing Zhu, Yimei Chen, Jingyi TI Anisotropic Seeded Growth of Cu-M (M = Au, Pt, or Pd) Bimetallic Nanorods with Tunable Optical and Catalytic Properties SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID OXYGEN REDUCTION; PLASMONIC PROPERTIES; ALLOY NANOPARTICLES; METHANOL OXIDATION; AUCU3 NANOCRYSTALS; CO-REDUCTION; COPPER; CLUSTERS; NANODENDRITES; NANOCUBES AB A general strategy to synthesize Cu-M (M = Au, Pt, or, Pd) bimetallic nanorods has been demonstrated based on a seeded co-reduction method. In this approach, noble metal nanoparticles serve as seeds, and newly reduced Cu atoms are subsequently nucleated on one side of the seeds, resulting in Janus nanoparticles with an M-rich and a Cu-rich portion. The elongation of the particles originates from the site-specific deposition of Cu clusters on the Cu-rich side of these Janus nanoparticles by retarding reduction kinetics of Cu through galvanic replacement. Using this approach, Cu-M alloyed nanorods can be conveniently synthesized with tunable composition, crystal structure, and aspect ratio. These nanorods have also been demonstrated as a unique system for investigation of the structural and compositional effects on their optical and catalytic Properties. C1 [Chen, Shutang; Jenkins, Samir V.; Chen, Jingyi] Univ Arkansas, Dept Chem & Biochem, Fayetteville, AR 72701 USA. [Tao, Jing; Zhu, Yimei] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Chen, JY (reprint author), Univ Arkansas, Dept Chem & Biochem, Fayetteville, AR 72701 USA. EM chenj@uark.edu RI Chen, Jingyi/E-7168-2010 OI Chen, Jingyi/0000-0003-0012-9640 FU Ralph E. Powe Jr. Faculty Enhancement Award; Arkansas Bioscience Institute; University of Arkansas; U.S. Department of Energy (Basic Energy Sciences); U.S. Department of Energy Materials Science and Engineering Division [DE-AC02-98CH10886] FX This work was supported in part by the Ralph E. Powe Jr. Faculty Enhancement Award, funds from Arkansas Bioscience Institute, and startup funds from the University of Arkansas to J.C. The work at BNL was supported by the U.S. Department of Energy (Basic Energy Sciences) and by the Materials Science and Engineering Division under Contract DE-AC02-98CH10886 and through the use of CFN. NR 62 TC 38 Z9 38 U1 11 U2 156 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD MAY 2 PY 2013 VL 117 IS 17 BP 8924 EP 8932 DI 10.1021/jp4013653 PG 9 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 138UX UT WOS:000318536600039 ER PT J AU Tahir, N Karim, A Persson, KA Hussain, ST Cruz, AG Usman, M Naeem, M Qiao, RM Yang, WL Chuang, YD Hussain, Z AF Tahir, Nadeem Karim, Altaf Persson, Kristin A. Hussain, Syed Tajammul Cruz, Alejandro G. Usman, Muhammad Naeem, Muhammad Qiao, Ruimin Yang, Wanli Chuang, Yi-De Hussain, Zahid TI Surface Defects: Possible Source of Room Temperature Ferromagnetism in Co-Doped ZnO Nanorods SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID X-RAY-ABSORPTION; ELECTRONIC-STRUCTURE; MAGNETIC-PROPERTIES; LDA+U METHOD; SEMICONDUCTORS; NANOPARTICLES; SPECTROSCOPY; EXCHANGE; SPECTRA; METALS AB Contradicting results about the origin of room temperature ferromagnetism (RTFM) from measurements on different forms of transition metal (TM)-doped ZnO nanostructured materials lead to strong debates on whether. RTFM could be an intrinsic property to TM-doped ZnO or not. Through careful synthesis and extensive characterizations, we have excluded the extrinsic contaminations as the cause of RTFM. Our experimental study confirms that defects such as oxygen vacancies lie on surface of nanorods and are likely a source of RTFM. X-ray absorption and emission spectroscopy, (XAS and XES) suggest that the doped Co ions, primarily in the divalent state, replace the Zn ions inside the tetrahedral without introducing Co clustering or Zn-related defects. Band gap narrowing upon Co doping is observed in both optical reflectance and O K-edge XAS/XES and is in agreement with the presence of oxygen vacancies and strong sp-d hybridization. Furthermore, such a trend can be nicely, reproduced in GGA+U band structure calculations. Calculations also suggest that these oxygen vacancies are likely to congregate at low energy (101) and (100) surfaces, instead of inside the bulk. Our findings highlight the importance of using the nanocrystalline surfaces to enhance the impurity concentrations and stabilize the ferromagnetism without post sample annealing in an oxygen deficient environment C1 [Tahir, Nadeem; Cruz, Alejandro G.; Qiao, Ruimin; Yang, Wanli; Chuang, Yi-De; Hussain, Zahid] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Karim, Altaf; Persson, Kristin A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94704 USA. [Tahir, Nadeem] Univ Bialystok, Fac Phys, Bialystok, Poland. [Tahir, Nadeem; Hussain, Syed Tajammul] Natl Ctr Phys, Islamabad, Pakistan. [Usman, Muhammad] Quaid I Azam Univ, Dept Phys, Islamabad, Pakistan. [Naeem, Muhammad] Fed Urdu Univ Arts Sci & Technol, Dept Phys, Karachi, Pakistan. RP Karim, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94704 USA. EM Akarim@lbl.gov RI Qiao, Ruimin/E-9023-2013; Yang, Wanli/D-7183-2011; Usman, Muhammad/G-5227-2014 OI Yang, Wanli/0000-0003-0666-8063; Usman, Muhammad/0000-0002-2405-9133 FU Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX A. Karim and K. A. Persson are supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, of the U.S. Department of Energy, and work at ALS is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract DE-AC02-05CH11231. NR 48 TC 15 Z9 15 U1 1 U2 42 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD MAY 2 PY 2013 VL 117 IS 17 BP 8968 EP 8973 DI 10.1021/jp311012m PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 138UX UT WOS:000318536600044 ER PT J AU Abe, K Hayato, Y Iida, T Iyogi, K Kameda, J Koshio, Y Kozuma, Y Marti, L Miura, M Moriyama, S Nakahata, M Nakayama, S Obayashi, Y Sekiya, H Shiozawa, M Suzuki, Y Takeda, A Takenaga, Y Ueno, K Ueshima, K Yamada, S Yokozawa, T Ishihara, C Kaji, H Kajita, T Kaneyuki, K Lee, KP McLachlan, T Okumura, K Shimizu, Y Tanimoto, N Labarga, L Kearns, E Litos, M Raaf, JL Stone, JL Sulak, LR Goldhaber, M Bays, K Kropp, WR Mine, S Regis, C Renshaw, A Smy, MB Sobel, HW Ganezer, KS Hill, J Keig, WE Jang, JS Kim, JY Lim, IT Albert, JB Scholberg, K Walter, CW Wendell, R Wongjirad, TM Ishizuka, T Tasaka, S Learned, JG Matsuno, S Smith, SN Hasegawa, T Ishida, T Ishii, T Kobayashi, T Nakadaira, T Nakamura, K Nishikawa, K Oyama, Y Sakashita, K Sekiguchi, T Tsukamoto, T Suzuki, AT Takeuchi, Y Ikeda, M Minamino, A Nakaya, T Fukuda, Y Itow, Y Mitsuka, G Tanaka, T Jung, CK Lopez, GD Taylor, I Yanagisawa, C Ishino, H Kibayashi, A Mino, S Mori, T Sakuda, M Toyota, H Kuno, Y Yoshida, M Kim, SB Yang, BS Okazawa, H Choi, Y Nishijima, K Koshiba, M Yokoyama, M Totsuka, Y Martens, K Schuemann, J Vagins, MR Chen, S Heng, Y Yang, Z Zhang, H Kielczewska, D Mijakowski, P Connolly, K Dziomba, M Thrane, E Wilkes, RJ AF Abe, K. Hayato, Y. Iida, T. Iyogi, K. Kameda, J. Koshio, Y. Kozuma, Y. Marti, Ll. Miura, M. Moriyama, S. Nakahata, M. Nakayama, S. Obayashi, Y. Sekiya, H. Shiozawa, M. Suzuki, Y. Takeda, A. Takenaga, Y. Ueno, K. Ueshima, K. Yamada, S. Yokozawa, T. Ishihara, C. Kaji, H. Kajita, T. Kaneyuki, K. Lee, K. P. McLachlan, T. Okumura, K. Shimizu, Y. Tanimoto, N. Labarga, L. Kearns, E. Litos, M. Raaf, J. L. Stone, J. L. Sulak, L. R. Goldhaber, M. Bays, K. Kropp, W. R. Mine, S. Regis, C. Renshaw, A. Smy, M. B. Sobel, H. W. Ganezer, K. S. Hill, J. Keig, W. E. Jang, J. S. Kim, J. Y. Lim, I. T. Albert, J. B. Scholberg, K. Walter, C. W. Wendell, R. Wongjirad, T. M. Ishizuka, T. Tasaka, S. Learned, J. G. Matsuno, S. Smith, S. N. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, T. Nakamura, K. Nishikawa, K. Oyama, Y. Sakashita, K. Sekiguchi, T. Tsukamoto, T. Suzuki, A. T. Takeuchi, Y. Ikeda, M. Minamino, A. Nakaya, T. Fukuda, Y. Itow, Y. Mitsuka, G. Tanaka, T. Jung, C. K. Lopez, G. D. Taylor, I. Yanagisawa, C. Ishino, H. Kibayashi, A. Mino, S. Mori, T. Sakuda, M. Toyota, H. Kuno, Y. Yoshida, M. Kim, S. B. Yang, B. S. Okazawa, H. Choi, Y. Nishijima, K. Koshiba, M. Yokoyama, M. Totsuka, Y. Martens, K. Schuemann, J. Vagins, M. R. Chen, S. Heng, Y. Yang, Z. Zhang, H. Kielczewska, D. Mijakowski, P. Connolly, K. Dziomba, M. Thrane, E. Wilkes, R. J. CA Super-Kamiokande Collaboration TI Evidence for the Appearance of Atmospheric Tau Neutrinos in Super-Kamiokande SO PHYSICAL REVIEW LETTERS LA English DT Article AB Super-Kamiokande atmospheric neutrino data were fit with an unbinned maximum likelihood method to search for the appearance of tau leptons resulting from the interactions of oscillation-generated tau neutrinos in the detector. Relative to the expectation of unity, the tau normalization is found to be 1.42 +/- 0.35(stat)(-0.12)(+0.14)(syst) excluding the no-tau-appearance hypothesis, for which the normalization would be zero, at the 3.8 sigma level. We estimate that 180.1 +/- 44.3(stat)(-15.2)(+17.8)(syst) tau leptons were produced in the 22.5 kton fiducial volume of the detector by tau neutrinos during the 2806 day running period. In future analyses, this large sample of selected tau events will allow the study of charged current tau neutrino interaction physics with oscillation produced tau neutrinos. C1 [Abe, K.; Hayato, Y.; Iida, T.; Iyogi, K.; Kameda, J.; Koshio, Y.; Kozuma, Y.; Marti, Ll.; Miura, M.; Moriyama, S.; Nakahata, M.; Nakayama, S.; Obayashi, Y.; Sekiya, H.; Shiozawa, M.; Suzuki, Y.; Takeda, A.; Takenaga, Y.; Ueno, K.; Ueshima, K.; Yamada, S.; Yokozawa, T.] Univ Tokyo, Inst Cosm Ray Res, Kamioka Observ, Kamioka, Gifu 5061205, Japan. [Ishihara, C.; Kaji, H.; Kajita, T.; Kaneyuki, K.; Lee, K. P.; McLachlan, T.; Okumura, K.; Shimizu, Y.; Tanimoto, N.] Univ Tokyo, Inst Cosm Ray Res, Res Ctr Cosm Neutrinos, Kashiwa, Chiba 2778582, Japan. [Labarga, L.] Univ Autonoma Madrid, Dept Theoret Phys, E-28049 Madrid, Spain. [Kearns, E.; Litos, M.; Raaf, J. L.; Stone, J. L.; Sulak, L. R.] Boston Univ, Dept Phys, Boston, MA 02215 USA. [Goldhaber, M.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Bays, K.; Kropp, W. R.; Mine, S.; Regis, C.; Renshaw, A.; Smy, M. B.; Sobel, H. W.; Vagins, M. R.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA. [Ganezer, K. S.; Hill, J.; Keig, W. E.] Calif State Univ Dominguez Hills, Dept Phys, Carson, CA 90747 USA. [Jang, J. S.; Kim, J. Y.; Lim, I. T.] Chonnam Natl Univ, Dept Phys, Kwangju 500757, South Korea. [Albert, J. B.; Scholberg, K.; Walter, C. W.; Wendell, R.; Wongjirad, T. M.] Duke Univ, Dept Phys, Durham, NC 27708 USA. [Ishizuka, T.] Fukuoka Inst Technol, Jr Coll, Fukuoka 8110214, Japan. [Tasaka, S.] Gifu Univ, Informat & Multimedia Ctr, Gifu 5011193, Japan. [Learned, J. G.; Matsuno, S.; Smith, S. N.] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA. [Hasegawa, T.; Ishida, T.; Ishii, T.; Kobayashi, T.; Nakadaira, T.; Nakamura, K.; Nishikawa, K.; Oyama, Y.; Sakashita, K.; Sekiguchi, T.; Tsukamoto, T.] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan. [Suzuki, A. T.; Takeuchi, Y.] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan. [Ikeda, M.; Minamino, A.; Nakaya, T.] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan. [Fukuda, Y.] Miyagi Univ Educ, Dept Phys, Sendai, Miyagi 9800845, Japan. [Itow, Y.; Mitsuka, G.; Tanaka, T.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648602, Japan. [Itow, Y.] Nagoya Univ, Kobayashi Maskawa Inst Origin Particle & Universe, Nagoya, Aichi 4648602, Japan. [Jung, C. K.; Lopez, G. D.; Taylor, I.; Yanagisawa, C.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Ishino, H.; Kibayashi, A.; Mino, S.; Mori, T.; Sakuda, M.; Toyota, H.] Okayama Univ, Dept Phys, Okayama 7008530, Japan. [Kuno, Y.; Yoshida, M.] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan. [Kim, S. B.; Yang, B. S.] Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea. [Okazawa, H.] Shizuoka Univ Welf, Dept Informat Social Welf, Yaizu, Shizuoka 4258611, Japan. [Choi, Y.] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea. [Nishijima, K.] Tokai Univ, Dept Phys, Hiratsuka, Kanagawa 2591292, Japan. [Koshiba, M.; Yokoyama, M.; Totsuka, Y.] Univ Tokyo, Bunkyo Ku, Tokyo 1130033, Japan. [Abe, K.; Hayato, Y.; Kameda, J.; Koshio, Y.; Miura, M.; Moriyama, S.; Nakahata, M.; Nakayama, S.; Obayashi, Y.; Sekiya, H.; Shiozawa, M.; Suzuki, Y.; Takeda, A.; Kajita, T.; Kaneyuki, K.; Kearns, E.; Stone, J. L.; Smy, M. B.; Sobel, H. W.; Scholberg, K.; Walter, C. W.; Nakamura, K.; Takeuchi, Y.; Nakaya, T.; Yokoyama, M.; Martens, K.; Schuemann, J.; Vagins, M. R.] Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778583, Japan. [Chen, S.; Heng, Y.; Yang, Z.; Zhang, H.] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China. [Kielczewska, D.] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland. [Mijakowski, P.] Natl Ctr Nucl Res, PL-00681 Warsaw, Poland. [Connolly, K.; Dziomba, M.; Thrane, E.; Wilkes, R. J.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. RP Abe, K (reprint author), Univ Tokyo, Inst Cosm Ray Res, Kamioka Observ, Kamioka, Gifu 5061205, Japan. RI Yokoyama, Masashi/A-4458-2011; Suzuki, Yoichiro/F-7542-2010; Takeuchi, Yasuo/A-4310-2011; Kim, Soo-Bong/B-7061-2014; Ishino, Hirokazu/C-1994-2015; Koshio, Yusuke/C-2847-2015; Kibayashi, Atsuko/K-7327-2015; Obayashi, Yoshihisa/A-4472-2011; OI Yokoyama, Masashi/0000-0003-2742-0251; Ishino, Hirokazu/0000-0002-8623-4080; Koshio, Yusuke/0000-0003-0437-8505; Raaf, Jennifer/0000-0002-4533-929X FU Japanese Ministry of Education, Culture, Sports, Science and Technology; U.S. Department of Energy; U.S. National Science Foundation FX We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. The Super-Kamiokande experiment has been built and operated from funding by the Japanese Ministry of Education, Culture, Sports, Science and Technology, the U.S. Department of Energy, and the U.S. National Science Foundation. NR 34 TC 38 Z9 39 U1 0 U2 21 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 2 PY 2013 VL 110 IS 18 AR 181802 DI 10.1103/PhysRevLett.110.181802 PG 7 WC Physics, Multidisciplinary SC Physics GA 145ML UT WOS:000319020100003 PM 23683190 ER PT J AU Kilina, SV Neukirch, AJ Habenicht, BF Kilin, DS Prezhdo, OV AF Kilina, Svetlana V. Neukirch, Amanda J. Habenicht, Bradley F. Kilin, Dmitri S. Prezhdo, Oleg V. TI Quantum Zeno Effect Rationalizes the Phonon Bottleneck in Semiconductor Quantum Dots SO PHYSICAL REVIEW LETTERS LA English DT Article ID DENSITY-FUNCTIONAL THEORY; SURFACE LIGANDS; ELECTRONIC EXCITATIONS; RELAXATION DYNAMICS; OPTICAL GAIN; AB-INITIO; NANOCRYSTALS; PBSE; BREAKING; EXCITONS AB Quantum confinement can dramatically slow down electron-phonon relaxation in nanoclusters. Known as the phonon bottleneck, the effect remains elusive. Using a state-of-the-art time-domain ab initio approach, we model the observed bottleneck in CdSe quantum dots and show that it occurs under quantum Zeno conditions. Decoherence in the electronic subsystem, induced by elastic electron-phonon scattering, should be significantly faster than inelastic scattering. Achieved with multiphonon relaxation, the phonon bottleneck is broken by Auger processes and structural defects, rationalizing experimental difficulties. C1 [Kilina, Svetlana V.] N Dakota State Univ, Dept Chem & Biochem, Fargo, ND 58108 USA. [Neukirch, Amanda J.] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA. [Habenicht, Bradley F.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA. [Kilin, Dmitri S.] Univ S Dakota, Dept Chem, Vermillion, SD 57069 USA. [Prezhdo, Oleg V.] Univ Rochester, Dept Chem, Rochester, NY 14627 USA. RP Kilina, SV (reprint author), N Dakota State Univ, Dept Chem & Biochem, Fargo, ND 58108 USA. FU U.S. Department of Energy Earlier Research Carrier Grant [DE-SC008446]; US Department of Energy [DE-SC0006527] FX The authors are grateful to Drs. Sergei Tretiak, Andrei Piryatinski, Heather Jaeger, and Alexey Akimov for fruitful discussions and to Levi Neukirch for comments on the manuscript. S. K. acknowledges the support of the U.S. Department of Energy Earlier Research Carrier Grant No. DE-SC008446 for financial support and the Center for Computationally Assisted Scienceand Technology (CCAST) at North Dakota State University and the Center for IntegratedNanotechnology (CINT) at Los Alamos National Laboratory for computer access and administrative support. OVP acknowledges support of the US Department of Energy Grant No. DE-SC0006527. NR 61 TC 47 Z9 47 U1 6 U2 63 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 2 PY 2013 VL 110 IS 18 AR 180404 DI 10.1103/PhysRevLett.110.180404 PG 6 WC Physics, Multidisciplinary SC Physics GA 145ML UT WOS:000319020100001 PM 23683182 ER PT J AU Kim, K Park, JK Boozer, AH AF Kim, Kimin Park, Jong-Kyu Boozer, Allen H. TI Numerical Verification of Bounce-Harmonic Resonances in Neoclassical Toroidal Viscosity for Tokamaks SO PHYSICAL REVIEW LETTERS LA English DT Article ID BANANA-DRIFT TRANSPORT; PLASMA TRANSPORT AB This Letter presents the first numerical verification for the bounce-harmonic (BH) resonance phenomena of the neoclassical transport in a tokamak perturbed by nonaxisymmetric magnetic fields. The BH resonances were predicted by analytic theories of neoclassical toroidal viscosity (NTV), as the parallel and perpendicular drift motions can be resonant and result in a great enhancement of the radial momentum transport. A new drift-kinetic delta f guiding-center particle code, POCA, clearly verified that the perpendicular drift motions can reduce the transport by phase-mixing, but in the BH resonances the motions can form closed orbits and particles radially drift out fast. The POCA calculations on resulting NTV torque are largely consistent with analytic calculations, and show that the BH resonances can easily dominate the NTV torque when a plasma rotates in the perturbed tokamak and therefore, is a critical physics for predicting the rotation and stability in the International Thermonuclear Experimental Reactor. C1 [Kim, Kimin; Park, Jong-Kyu] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Boozer, Allen H.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. RP Kim, K (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM kkim@pppl.gov FU DOE [DE-AC02-09CH11466] FX K. K. would like to thank Walter Guttenfelder for useful comments. This work was supported by DOE Contract No. DE-AC02-09CH11466. NR 27 TC 8 Z9 8 U1 1 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAY 2 PY 2013 VL 110 IS 18 AR 185004 DI 10.1103/PhysRevLett.110.185004 PG 5 WC Physics, Multidisciplinary SC Physics GA 145ML UT WOS:000319020100008 PM 23683209 ER PT J AU Davoudiasl, H Lewis, I Ponton, E AF Davoudiasl, Hooman Lewis, Ian Ponton, Eduardo TI Electroweak phase transition, Higgs diphoton rate, and new heavy fermions SO PHYSICAL REVIEW D LA English DT Article ID STANDARD MODEL; BOSON; BARYOGENESIS; LHC; MASS AB We show that weak scale vectorlike fermions with order one couplings to the Higgs can lead to a novel mechanism for a strongly first-order electroweak phase transition through their tendency to drive the Higgs quartic coupling negative. These same fermions could also enhance the loop-induced branching fraction of the Higgs into two photons, as suggested by the recent discovery of a similar to 125 GeV Higgs-like state at the CERN LHC. Our results suggest that measurements of the diphoton decay rate of the Higgs and its self-coupling, at the LHC or perhaps at a future lepton collider, could probe the electroweak phase transition in the early Universe, with significant implications for the viability of electroweak baryogenesis scenarios. C1 [Davoudiasl, Hooman; Lewis, Ian; Ponton, Eduardo] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Ponton, Eduardo] Columbia Univ, Dept Phys, New York, NY 10027 USA. RP Davoudiasl, H (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RI Ponton, Eduardo/I-4125-2013 OI Ponton, Eduardo/0000-0003-3138-1136 FU US Department of Energy [DE-AC02-98CH10886] FX We thank D. Marzocca, M. Serone, and A. Urbano for pointing out an error in a previous version of this work. This led us to consider a different region of parameter space, where the original conclusions could be obtained. We also thank Mariano Quiros for comments on the revised manuscript and Sally Dawson for helpful conversations. This work is supported by the US Department of Energy under Grant No. DE-AC02-98CH10886. NR 34 TC 20 Z9 20 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 2 PY 2013 VL 87 IS 9 AR 093001 DI 10.1103/PhysRevD.87.093001 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 145FB UT WOS:000318999100001 ER PT J AU Lin, S Pisarski, RD Skokov, VV AF Lin, Shu Pisarski, Robert D. Skokov, Vladimir V. TI Zero interface tensions at the deconfining phase transition for a matrix model of a SU(infinity) gauge theory SO PHYSICAL REVIEW D LA English DT Article ID T-HOOFT LOOP; HOT QCD; HIGH-TEMPERATURE; CUBIC ORDER; FINITE AB Using a matrix model, we model the deconfining phase transition at nonzero temperature for a SU(N) gauge theory at large N. At infinite N the matrix model exhibits a Gross-Witten-Wadia transition. We show that at the critical temperature T-d, both the order-disorder and the order-order interface tensions vanish identically. We estimate how these quantities approach zero in the matrix model as T -> T-d and as N -> infinity. The numerical solution of the matrix model suggests possible nonmonotonic behavior in N for relatively small values of N, N similar to 5. C1 [Lin, Shu; Pisarski, Robert D.] RIKEN BNL, Brookhaven Natl Lab, Upton, NY 11973 USA. [Pisarski, Robert D.; Skokov, Vladimir V.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Lin, S (reprint author), RIKEN BNL, Brookhaven Natl Lab, Upton, NY 11973 USA. EM slin@quark.phy.bnl.gov; pisarski@bnl.gov; vskokov@quark.phy.bnl.gov FU U.S. Department of Energy [DE-AC02-98CH10886]; RIKEN Foreign Postdoctoral Researchers Program FX The research of R. D. P. and V. S. is supported by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886. S. L. is supported by the RIKEN Foreign Postdoctoral Researchers Program. NR 36 TC 6 Z9 6 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAY 2 PY 2013 VL 87 IS 10 AR 105002 DI 10.1103/PhysRevD.87.105002 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 145GD UT WOS:000319002300003 ER PT J AU Ackerman, DG Heberle, FA Feigenson, GW AF Ackerman, David G. Heberle, Frederick A. Feigenson, Gerald W. TI Limited Perturbation of a DPPC Bilayer by Fluorescent Lipid Probes: A Molecular Dynamics Study SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID LECITHIN BIMOLECULAR LEAFLETS; PHASE BOUNDARIES; DOMAIN FORMATION; MEMBRANES; SIMULATIONS; MIXTURES; MODEL; CHOLESTEROL; HYDRATION; VESICLES AB The properties Of lipid bilayer nanometer-scale domains could be crucial for understanding Cell, membranes: Fluorescent probes are often used to study bilayers, yet:their effects on host lipids are not well understood. We used molecular dynamics simulations to investigate perturbations in a fluid DPPC bilayer upon incorporation Of three indocarbocyanine probes: DiI-C18:0; DiI-C18:2, or DiI-C12:0. We find a 10-12% decrease in chain order for DPPC in the solvation shell nearest the probe but smaller effects in subsequent shells, indicating that the probes significantly alter only their local environment. We also observe order perturbations of lipids directly across from the probe in the opposite leaflet Additionally, the DPPC headgroup phosphorus-to-nitrogen vector of lipids nearest the probe exhibits preferential orientation pointing away from the DiI. We show that, while DiI probes perturb their local, environment, they do not strongly influence. the average properties of "nanoscopic" domains containing a few hundred lipids. C1 [Ackerman, David G.; Feigenson, Gerald W.] Cornell Univ, Dept Mol Biol & Genet, Ithaca, NY 14853 USA. [Heberle, Frederick A.] Oak Ridge Natl Lab, Neutron Sci Directorate, Biol & Soft Matter Div, Oak Ridge, TN 37831 USA. RP Feigenson, GW (reprint author), Cornell Univ, Dept Mol Biol & Genet, Ithaca, NY 14853 USA. EM gwf3@cornell.edu FU NIH [R01 GM077198]; NSF [MCB 0842839]; National Science Foundation [DGE-114153, OCI-1053575]; Cornell University; National Science Foundation FX Support was from research awards from the NIH R01 GM077198 and the NSF MCB 0842839 (to G.W.F.). This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under grant number DGE-114153 (to D.G.A). This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number OCI-1053575. A portion of this research was also conducted using the resources of the Cornell Center for Advanced Computing, which receives funding from Cornell University, the National Science Foundation, and other leading public agencies, foundations, and corporations. We thank Alan Grossfield, Jonathan Amazon, Juyang Huang, and Hari Muddana for helpful discussions. NR 43 TC 6 Z9 6 U1 3 U2 34 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD MAY 2 PY 2013 VL 117 IS 17 BP 4844 EP 4852 DI 10.1021/jp400289d PG 9 WC Chemistry, Physical SC Chemistry GA 138UY UT WOS:000318536700013 PM 23548205 ER PT J AU Taylor, CB Payne, CM Himmel, ME Crowley, MF McCabe, C Beckham, GT AF Taylor, Courtney B. Payne, Christina M. Himmel, Michael E. Crowley, Michael F. McCabe, Clare Beckham, Gregg T. TI Binding Site Dynamics and Aromatic-Carbohydrate Interactions in Processive and Non-Processive Family 7 Glycoside Hydrolases SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID TRICHODERMA-REESEI CELLOBIOHYDROLASE; NEUTRON FIBER DIFFRACTION; FREE-ENERGY CALCULATIONS; HYDROGEN-BONDING SYSTEM; SYNCHROTRON X-RAY; ENDOGLUCANASE-I; CRYSTAL-STRUCTURE; ANGSTROM RESOLUTION; BIOMASS RECALCITRANCE; MOLECULAR-DYNAMICS AB In nature, processive and non-processive cellulase enzymes deconstruct cellulose to soluble sugars. From structural studies, the consensus is that processive cellulases exhibit tunnels lined with aromatic and polar residues, whereas non-processive cellulases exhibit, open clefts with fewer ligand contacts. To gain additional insight into the differences between processive and non-processive cellulases, we examine the glycoside hydrolase family 7 (GH7) cellobiohydrolase, Cel7A, and the endoglucanase, Cel7B, from Trichoderma reesei with molecular simulation. We compare properties related to processivity and compute the binding affinity changes for mutation of four aromatic residues lining the Cel7A active site tunnel and Cel7B deft to alanine. For the wild type enzymes, dissimilar behavior is observed at nearly every glucopyranose-binding site from -7 to +2, except in the -2 site, suggesting that the structural differences directly around the catalytic center and at the active site tunnel entrances and exits may all contribute to processivity in GH7s. Interestingly, the 2 site is similar in both enzymes, likely due to the significant conformational change needed in the cellodextrin ligand near this site for catalysis. Moreover, aromatic residue mutations in the. Cel7A and Cel7B active sites display only small differences in binding affinity, but the ligand flexibility and enzyme ligand interactions are only locally affected in Cel7A, whereas the entire ligand is significantly affected when any aromatic residue is mutated in Cel7B. C1 [Taylor, Courtney B.; McCabe, Clare] Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN 37235 USA. [Payne, Christina M.; Himmel, Michael E.; Crowley, Michael F.] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. [Payne, Christina M.] Univ Kentucky, Dept Chem & Mat Engn, Lexington, KY 40506 USA. [McCabe, Clare] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA. [Beckham, Gregg T.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Beckham, Gregg T.] Colorado Sch Mines, Dept Chem Engn, Golden, CO 80401 USA. RP McCabe, C (reprint author), Vanderbilt Univ, Dept Chem & Biomol Engn, 221 Kirkland Hall, Nashville, TN 37235 USA. EM c.mccabe@vanderbilt.edu; gregg.beckham@nrel.gov RI crowley, michael/A-4852-2013; Payne, Christina/C-7338-2011; McCabe, Clare/I-8017-2012 OI crowley, michael/0000-0001-5163-9398; Payne, Christina/0000-0001-5264-0964; McCabe, Clare/0000-0002-8552-9135 FU US Department of Energy (DOE) Office of the Biomass Program; National Institute for Computational Science Kraken cluster [TG-MCB090159]; US DOE Energy Efficiency and Renewable Energy [DE-AC36-08GO28308]; Office of Science of the US DOE [DE-AC02-05CH11231] FX We thank the US Department of Energy (DOE) Office of the Biomass Program for funding. Computational time for this research was supported in part by National Science Foundation through XSEDE resources on the Texas Advanced Computer Center Ranger cluster and the National Institute for Computational Science Kraken cluster, under grant TG-MCB090159 and by the National Renewable Energy Laboratory Computational Sciences Center supported by US DOE Energy Efficiency and Renewable Energy under Contract No. DE-AC36-08GO28308. Additional resources were provided through the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the US DOE under Contract No. DE-AC02-05CH11231. NR 68 TC 28 Z9 28 U1 5 U2 62 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD MAY 2 PY 2013 VL 117 IS 17 BP 4924 EP 4933 DI 10.1021/jp401410h PG 10 WC Chemistry, Physical SC Chemistry GA 138UY UT WOS:000318536700021 PM 23534900 ER PT J AU Kilina, S Dandu, N Batista, ER Saxena, A Martin, RL Smith, DL Tretiak, S AF Kilina, Svetlana Dandu, Naveen Batista, Enrique R. Saxena, Avadh Martin, Richard L. Smith, Darryl L. Tretiak, Sergei TI Effect of Packing on Formation of Deep Carrier Traps in Amorphous Conjugated Polymers SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS LA English DT Article ID POLYFLUORENES; DYNAMICS; STATES AB We theoretically investigate the role of conformational disorder and intermolecular interactions on the localization properties of electronic states, leading to the formation of carrier traps in amorphous aggregates of conjugated polymers Samples of amorphous conformations of poly(p-phenylene vinylene) (PPV), poly2-methoxy-5-(2-ethyl-hexyloxy)PPV (MEH-PPV), and [poly-(9,9'-dioctyluorene)] (PFO) oligomers are simulated by classical molecular dynamics, while their electronic structure is calculated using first-principles density functional theory. Localization and delocalization properties of molecular orbitals are studied based on the participation ratio analysis, an approach commonly used in inorganic semiconductors. Our simulations confirm that the alkyl side chains insignificantly affect the conformational disorder in amorphous polymers while having a dramatic effect on the intermolecular disorder and packing. The nature of the disorder and its impact on charge carrier localization in amorphous polymers with alkyl side chains differ, drastically from those of disordered polymers without side chains, such as PPVs. Thus, long-range intermolecular interactions and sparse packing are responsible for the formation of multiple, deep, highly localized trap states in amorphous MEH-PPVs and PFOs, while close packing in combination with conformational disorder leads to the trap states distributed mostly near the bandgap edges in PPV aggregates. C1 [Kilina, Svetlana; Dandu, Naveen] N Dakota State Univ, Dept Chem & Biochem, Fargo, ND 58108 USA. [Batista, Enrique R.; Saxena, Avadh; Martin, Richard L.; Smith, Darryl L.; Tretiak, Sergei] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Tretiak, Sergei] Los Alamos Natl Lab, Ctr Integrated Nanotechnol CINT, Los Alamos, NM 87545 USA. RP Tretiak, S (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM serg@lanl.gov RI Tretiak, Sergei/B-5556-2009; OI Tretiak, Sergei/0000-0001-5547-3647; Dandu, Naveen/0000-0001-7122-8537 FU ND EPSCoR; NSF [EPS-0814442]; DOE Office of Basic Energy Sciences (OBES) [08SCPE973]; US Department of Energy; Los Alamos National Laboratory (LANL) Directed Research and Development Funds; National Nuclear Security Administration of the U.S. Department of Energy [DE-AC52-06NA25396] FX S.K. thanks ND EPSCoR, NSF Fund EPS-0814442 for partial financial support and the Center for Computationally Assisted Science and Technology (CCAST) at North Dakota State University and the Center for Integrated Nanotechnology (CINT) at Los Alamos National Laboratory for computer access and administrative support. D.L.S and R.L.M. acknowledge the support from the DOE Office of Basic Energy Sciences (OBES) under Work Proposal Number 08SCPE973. S.T., A.S., and E.R.B. acknowledge the support from the US Department of Energy and Los Alamos National Laboratory (LANL) Directed Research and Development Funds. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396. NR 38 TC 8 Z9 8 U1 0 U2 42 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1948-7185 J9 J PHYS CHEM LETT JI J. Phys. Chem. Lett. PD MAY 2 PY 2013 VL 4 IS 9 BP 1453 EP 1459 DI 10.1021/jz4003197 PG 7 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 138UW UT WOS:000318536500014 PM 26282298 ER PT J AU Park, YS Ghosh, Y Xu, P Mack, NH Wang, HL Hollingsworth, JA Htoon, H AF Park, Young-Shin Ghosh, Yagnaseni Xu, Ping Mack, Nathan H. Wang, Hsing-Lin Hollingsworth, Jennifer A. Htoon, Han TI Single-Nanocrystal Photoluminescence Spectroscopy Studies of Plasmon-Multiexciton Interactions at Low Temperature SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS LA English DT Article ID SEMICONDUCTOR QUANTUM-DOT; MULTIPOLAR INTERBAND ABSORPTION; ENTANGLED PHOTON PAIRS; SUPPRESSED BLINKING; AUGER RECOMBINATION; ENHANCEMENT; VOLUME AB Using thick-shell or "giant" CdSe/CdS nanocrystal quantum dots (g-NQDs), characterized by strongly suppressed Auger recombination, we studied the influence of plasmonic interactions on multiexciton emission. Specifically, we assessed the separate effects of plasmonic absorption and plasmonic emission enhancement by a systematic analysis of the pump fluence dependence of low-temperature photoluminescence (low-T PL) derived from individual CdSe/CdS g-NQDs deposited on nanoroughened silver films. Our study reveals that (1) the multiexciton (MX) emissions in g-NQD coupled to silver films were enhanced not only through the creation of more excitons via enhancement of absorption but also through the direct modification of the competition between the radiative and nonradiative recombination processes of MXs; (2) strong enhancement in absorption is not necessary for strong multiexciton emission; and (3) the emission of MXs can become stronger with the increase of multiexciton order. We also exploited the strong enhancement of MX emission to perform second-order photon correlation and cross-correlation experiments using very low pump fluences and observed a strong photon bunching that decays with increasing pump fluence. C1 [Park, Young-Shin; Xu, Ping; Mack, Nathan H.; Wang, Hsing-Lin; Htoon, Han] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Park, Young-Shin; Ghosh, Yagnaseni; Hollingsworth, Jennifer A.; Htoon, Han] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Htoon, H (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA. EM htoon@lanl.gov RI Xu, Ping/I-1910-2013; Dennis, Allison/A-7654-2014; OI Xu, Ping/0000-0002-1516-4986; Htoon, Han/0000-0003-3696-2896; Park, Young-Shin/0000-0003-4204-1305 FU CINT; OBES, OS, U.S. DOE [2009LANL1096] FX This work was conducted, in part, at the Center for Integrated Nanotechnologies (CINT), a U.S. Department of Energy, Office of Basic Energy Sciences (OBES) user facility. Y.-S.P. is supported by CINT. Y.G. acknowledges Los Alamos National Laboratory Directed Research and Development Funds. H.H. and J.A.H. acknowledge a Single-Investigator Small-Group Research Award (2009LANL1096), OBES, OS, U.S. DOE. NR 35 TC 13 Z9 13 U1 0 U2 44 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1948-7185 J9 J PHYS CHEM LETT JI J. Phys. Chem. Lett. PD MAY 2 PY 2013 VL 4 IS 9 BP 1465 EP 1470 DI 10.1021/jz400479t PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 138UW UT WOS:000318536500016 PM 26282300 ER PT J AU Wang, MX Liu, Q Li, ZF Sun, HF Stach, EA Xie, J AF Wang, Mei-xian Liu, Qi Li, Zhe-Fei Sun, Hong-fang Stach, Eric A. Xie, Jian TI Structural Modification of Graphene Sheets to Create a Dense Network of Defect Sites SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS LA English DT Article ID HYDROGEN ADSORPTION; CARBON NANOTUBES; LAYER GRAPHENE; STORAGE; TEMPERATURE; GRAPHITE; BEHAVIOR; FILMS; AREA AB Pt/graphene composites were synthesized by loading platinum nanoparticles onto graphene and etched at 1000 degrees C in a hydrogen atmosphere. This results in the formation of a dense array of nanostructured defect sites in the graphene, including trenches, nanoribbons, islands, and holes. These defect sites result in an increase in the number of unsaturated carbon atoms and, consequently, enhance the interaction of the CO2 molecules with the etched graphene. This leads to a high capacity for storing CO2; 1 g of the etched samples can store up to 76.3 cm(3) of CO2 at 273 K under ambient pressure. C1 [Wang, Mei-xian; Liu, Qi; Li, Zhe-Fei; Xie, Jian] Indiana Univ Purdue Univ, Purdue Sch Engn & Technol, Dept Mech Engn, Indianapolis, IN 46202 USA. [Sun, Hong-fang] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA. [Sun, Hong-fang] Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA. [Stach, Eric A.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Xie, J (reprint author), Indiana Univ Purdue Univ, Purdue Sch Engn & Technol, Dept Mech Engn, Indianapolis, IN 46202 USA. EM Meixian.Wang@graftech.com; estach@bnl.gov; jianxie@iupui.edu RI Stach, Eric/D-8545-2011; Li, Zhefei/M-1106-2015 OI Stach, Eric/0000-0002-3366-2153; FU multidisciplinary Undergraduate Research Initiative (MURI) of Indiana University-Purdue University Indianapolis (IUPUI); Center for Functional Nanomaterials of Brookhaven National Laboratory (US-DOE) [DE-AC02-98CH10886] FX This work was partially supported by the multidisciplinary Undergraduate Research Initiative (MURI) of Indiana University-Purdue University Indianapolis (IUPUI). This research was also carried out in part at the Center for Functional Nanomaterials of Brookhaven National Laboratory (US-DOE Contract DE-AC02-98CH10886). NR 31 TC 8 Z9 8 U1 1 U2 49 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1948-7185 J9 J PHYS CHEM LETT JI J. Phys. Chem. Lett. PD MAY 2 PY 2013 VL 4 IS 9 BP 1484 EP 1488 DI 10.1021/jz4001664 PG 5 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 138UW UT WOS:000318536500019 PM 26282303 ER PT J AU Feng, ZX Crumlin, EJ Hong, WT Lee, D Mutoro, E Biegalski, MD Zhou, H Bluhm, H Christen, HM Shao-Horn, Y AF Feng, Zhenxing Crumlin, Ethan J. Hong, Wesley T. Lee, Dongkyu Mutoro, Eva Biegalski, Michael D. Zhou, Hua Bluhm, Hendrik Christen, Hans M. Shao-Horn, Yang TI In Situ Studies of the Temperature-Dependent Surface Structure and Chemistry of Single-Crystalline (001)-Oriented La0.8Sr0.2CoO3-delta Perovskite Thin Films SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS LA English DT Article ID OXIDE FUEL-CELLS; OXYGEN REDUCTION ACTIVITY; ELECTRICAL-CONDUCTIVITY; CATHODE; ENHANCEMENT; STABILITY; CATALYSTS; SR; ELECTROCATALYSIS; SPECTROSCOPY AB Perovskites are used to promote the kinetics of oxygen electrocatalysis in solid oxide fuel cells and oxygen permeation membranes. Little is known about the surface structure and chemistry of perovskites at high temperatures and partial oxygen pressures. Combining in situ X-ray reflectivity (XRR) and in situ ambient pressure X-ray photoelectron spectroscopy (APXPS), we report, for the first time, the evolution of the surface structure and chemistry of (001)-oriented perovskite La0.8Sr0.2CoO3-delta (LSC113) and (La0.5Sr0.5)(2)CoO4+delta (LSC214)-decorated LSC113 (LSC113/214) thin films as a function of temperature. Heating the (001) oriented LSC113 surface leads to the formation of surface LSC214-like particles, which is further confirmed by ex situ Auger electron spectroscopy (AES). In contrast, the LSC113/214 surface, with activities much higher than that of LSC113, is stable upon heating. Combined in situ x RR and AMPS measurements support that Sr enrichment may occur at the LSC113 and LSC214 interface, which can be responsible for its markedly enhanced activities. C1 [Feng, Zhenxing; Crumlin, Ethan J.; Hong, Wesley T.; Lee, Dongkyu; Mutoro, Eva; Shao-Horn, Yang] MIT, Electrochem Energy Lab, Cambridge, MA 02139 USA. [Feng, Zhenxing; Crumlin, Ethan J.; Lee, Dongkyu; Mutoro, Eva; Shao-Horn, Yang] MIT, Dept Mech Engn, Cambridge, MA 02139 USA. [Hong, Wesley T.; Shao-Horn, Yang] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA. [Crumlin, Ethan J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adavenced Light Source, Berkeley, CA 94720 USA. [Bluhm, Hendrik] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Chem Sci Div, Berkeley, CA 94720 USA. [Mutoro, Eva] BASF SE, D-67056 Ludwigshafen, Germany. [Biegalski, Michael D.; Christen, Hans M.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Zhou, Hua] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Shao-Horn, Y (reprint author), MIT, Electrochem Energy Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA. EM shaohorn@mit.edu RI Christen, Hans/H-6551-2013; Hong, Wesley/H-1102-2014; Feng, Zhenxing/J-7457-2013 OI Christen, Hans/0000-0001-8187-7469; Feng, Zhenxing/0000-0001-7598-5076 FU DOE [SISGR DESC0002633]; King Abdullah University of Science and Technology; King Fahd University of Petroleum and Minerals in Dharam, Saudi Arabia through the Center for Clean Water and Clean Energy at MIT; King Fahd University of Petroleum and Minerals in Dharam, Saudi Arabia through the Center for Clean Water and Clean Energy at KFUPM; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-06CH11357, DE-AC02-05CH11231]; Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy FX This work was supported in part by the DOE (SISGR DESC0002633) and King Abdullah University of Science and Technology. The authors would like to thank the King Fahd University of Petroleum and Minerals in Dharam, Saudi Arabia, for funding the research reported in this paper through the Center for Clean Water and Clean Energy at MIT and KFUPM. The Advanced Photon Source and the Advanced Light Source are supported by the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy under Contracts DE-AC02-06CH11357 and DE-AC02-05CH11231, respectively. The PLD preparation performed was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. NR 38 TC 13 Z9 13 U1 4 U2 81 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1948-7185 J9 J PHYS CHEM LETT JI J. Phys. Chem. Lett. PD MAY 2 PY 2013 VL 4 IS 9 BP 1512 EP 1518 DI 10.1021/jz400250t PG 7 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 138UW UT WOS:000318536500023 PM 26282307 ER PT J AU D'Alessio, L Rahmani, A AF D'Alessio, Luca Rahmani, Armin TI Thermally isolated Luttinger liquids with noisy Hamiltonians SO PHYSICAL REVIEW B LA English DT Article ID TONKS-GIRARDEAU GAS; QUANTUM; DYNAMICS; SYSTEMS AB We study the dynamics of a quantum-coherent thermally isolated Luttinger liquid with noisy Luttinger parameter. To characterize the fluctuations of the absorbed energy in generic noise-driven systems, we first identify two types of energy moments, which can help tease apart the effects of classical (sample-to-sample) and quantum sources of fluctuations. One type of moment captures the total fluctuations due to both sources, while the other one captures the effect of the classical source only. We then demonstrate that, in the Luttinger liquid case, the two types of moments agree in the thermodynamic limit, indicating that the classical source dominates. In contrast to equilibrium thermodynamics, in this driven system the relative fluctuations of energy do not decay with the system size. Additionally, we study the deviations of equal-time correlation functions from their ground-state value, and find a simple scaling behavior. C1 [D'Alessio, Luca] Boston Univ, Dept Phys, Boston, MA 02215 USA. [Rahmani, Armin] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Rahmani, Armin] Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA. RP D'Alessio, L (reprint author), Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA. FU AFOSR [FA9550-10-1-0110]; US Department of Energy through LANL/LDRD program FX We are grateful to K. Barros, C. Chamon, A. del Campo, T. Giamarchi, D. Huse, P. Krapivsky, I. Martin, A. Polkovnikov, P. Zoller, and W. Zurek for helpful discussions. This work was supported in part by AFOSR FA9550-10-1-0110 (L.D.) and the US Department of Energy through LANL/LDRD program (A.R.). NR 54 TC 4 Z9 4 U1 0 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAY 2 PY 2013 VL 87 IS 17 AR 174301 DI 10.1103/PhysRevB.87.174301 PG 11 WC Physics, Condensed Matter SC Physics GA 138KX UT WOS:000318508600001 ER PT J AU Zhou, DDY Davis, MJ Skodje, RT AF Zhou, Dingyu D. Y. Davis, Michael J. Skodje, Rex T. TI Multitarget Global Sensitivity Analysis of n-Butanol Combustion SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID DIMENSIONAL MODEL REPRESENTATIONS; METHANE FLAME MODEL; UNCERTAINTY ANALYSIS; RATE CONSTANTS; HYDROGEN-ABSTRACTION; CHEMICAL-KINETICS; OXIDATION; SYSTEMS; MECHANISMS; EFFICIENT AB A model for the combustion of butanol is studied using a recently developed theoretical method for the systematic improvement of the kinetic mechanism. The butanol mechanism includes 1446 reactions, and we demonstrate that it is straightforward and computationally feasible to implement a full global sensitivity analysis incorporating all the reactions. In addition, we extend our previous analysis of ignition delay targets to include species targets. The combination of species and ignition targets leads to multitarget global sensitivity analysis, which allows for a more complete mechanism validation procedure than we previously implemented. The inclusion of species sensitivity analysis allows for a direct comparison between reaction pathway analysis and global sensitivity analysis. C1 [Zhou, Dingyu D. Y.; Skodje, Rex T.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA. [Zhou, Dingyu D. Y.; Davis, Michael J.; Skodje, Rex T.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Skodje, RT (reprint author), Univ Colorado, Dept Chem & Biochem, Campus Box 215, Boulder, CO 80309 USA. FU Division of Chemical Sciences, Geosciences, and Biosciences, the Office of Basic Energy Sciences, the U.S. Department of Energy [DE-ACO2-06CH11357] FX This work was supported by the Division of Chemical Sciences, Geosciences, and Biosciences, the Office of Basic Energy Sciences, the U.S. Department of Energy, under Contract No. DE-ACO2-06CH11357. NR 50 TC 14 Z9 14 U1 0 U2 31 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD MAY 2 PY 2013 VL 117 IS 17 BP 3569 EP 3584 DI 10.1021/jp312340q PG 16 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 138UZ UT WOS:000318536800001 PM 23530815 ER PT J AU Everett, SM Rawn, CJ Keffer, DJ Mull, DL Payzant, EA Phelps, TJ AF Everett, S. Michelle Rawn, Claudia J. Keffer, David J. Mull, Derek L. Payzant, E. Andrew Phelps, Tommy J. TI Kinetics of Methane Hydrate Decomposition Studied via in Situ Low Temperature X-ray Powder Diffraction SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID SELF-PRESERVATION; GAS HYDRATE; CH4 HYDRATE; ANOMALOUS PRESERVATION; DISSOCIATION BEHAVIOR; ACTIVATION-ENERGY; ICE; PHASE; CARBON; RATES AB Gas hydrate is known to have a slowed decomposition rate at ambient pressure and temperatures below the melting point of ice. As hydrate exothermically decomposes, gas is released and water of the clathrate cages transforms into ice. Based on results from the decomposition of three nominally similar methane hydrate samples, the kinetics of two regions, 180-200 and 230-260 K, within the overall decomposition range 140-260 K, were studied by in situ low temperature X-ray powder diffraction. The kinetic rate constants, k(a) and the reaction mechanisms, n, for ice formation from methane hydrate were determined by the Avrami model within each region, and activation energies, E-a, were determined by the Arrhenius plot. E-a determined from the data for 180-200 K was 42 kJ/mol and for 230-260 K was 22 kJ/mol. The higher E-a in the colder temperature range was attributed to a difference in the microstructure of ice between the two regions. C1 [Everett, S. Michelle; Rawn, Claudia J.; Keffer, David J.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Rawn, Claudia J.] Oak Ridge Natl Lab, Mat Sci Technol Div, Oak Ridge, TN 37831 USA. [Mull, Derek L.; Phelps, Tommy J.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Payzant, E. Andrew] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. RP Rawn, CJ (reprint author), Univ Tennessee, Dept Mat Sci & Engn, 1508 Middle Dr, Knoxville, TN 37996 USA. EM crawn@utk.edu RI Payzant, Edward/B-5449-2009; Everett, Susan/G-8523-2013; Keffer, David/C-5133-2014 OI Payzant, Edward/0000-0002-3447-2060; Keffer, David/0000-0002-6246-0286 FU National Science Foundation [DGE0801470]; Office of Fossil Energy [FEAB111]; Division of Scientific User Facilities, Office of Basic Energy Science, U.S. Department of Energy; "Sustainable Technology through Advanced Interdisciplinary Research" (STAIR) FX S.M.E. was supported by National Science Foundation Grant No. DGE0801470, "Sustainable Technology through Advanced Interdisciplinary Research" (STAIR), awarded to the University of Tennessee, Knoxville. D.L.M. was supported by Office of Fossil Energy through Field Work Proposal FEAB111 "Hydrate Formation and Dissociation in Simulated and Field Samples." Low temperature X-ray powder diffraction data were collected at the Oak Ridge National Laboratory's CNMS User Facility, sponsored by the Division of Scientific User Facilities, Office of Basic Energy Science, U.S. Department of Energy. NR 44 TC 4 Z9 4 U1 4 U2 68 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD MAY 2 PY 2013 VL 117 IS 17 BP 3593 EP 3598 DI 10.1021/jp4020178 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 138UZ UT WOS:000318536800003 PM 23557375 ER PT J AU Cheah, S Gaston, KR Parent, YO Jarvis, MW Vinzant, TB Smith, KM Thornburg, NE Nimlos, MR Magrini-Bair, KA AF Cheah, Singfoong Gaston, Katherine R. Parent, Yves O. Jarvis, Mark W. Vinzant, Todd B. Smith, Kristin M. Thornburg, Nicholas E. Nimlos, Mark R. Magrini-Bair, Kimberly A. TI Nickel cerium olivine catalyst for catalytic gasification of biomass SO APPLIED CATALYSIS B-ENVIRONMENTAL LA English DT Article DE Gasification; Tar; Olivine; Chemical looping; Syngas; Tar reforming; Pyrolysis; Biomass gasification; Biofuel ID STEAM REFORMING CATALYSTS; WEIGHT/BIOMASS FLOW-RATE; DUAL FLUIDIZED-BED; GAS-PRODUCTION; PINE SAWDUST; MOLECULAR CHARACTERIZATION; 2ND-GENERATION BIOFUELS; THERMAL-DECOMPOSITION; LOW-TEMPERATURES; GASIFYING AGENT AB A nickel cerium modified olivine was used as a fluidized bed material in a biomass gasifier and the impact of the modification on biomass conversion, product gas composition, and tar speciation at different temperatures of oak gasification was measured. The experiments were conducted in the pyrolysis mode, without additional input of steam or oxygen (e.g., from air) into the system. In both plain and modified olivine, carbon- and hydrogen-based yields in light gases produced increased as temperature increased from 600 to 800 degrees C. Using modified olivine resulted in significant improvement in carbon- and hydrogen-based yields and substantial reduction in tars and methane. With modified olivine, the biochar produced at 800 degrees C was 40% less than that with plain olivine. Characterization of the fresh and post-reaction catalyst showed that a fraction of the NiO was reduced in situ in the gasifier by the syngas. In addition, the catalyst was also contributing oxygen to the environment inside the gasifier in a chemical-looping like mode, resulting in less char and coke formation than that of gasification of biomass without an additional oxygen source. Statistical analysis of molecular beam mass spectrometry data provided detailed tar speciation information under different gasification conditions. At both 650 and 800 degrees C, the modified olivine was effective in producing more syngas either through conversion of hydrocarbon rich tars into syngas or blocking the pathway for hydrocarbon rich tar formation. However, the impact of the modified olivine in converting oxygenates (that are primarily derived from deconstruction of biomass) into deoxygenated compounds was probably minimal. (c) 2012 Elsevier B.V. All rights reserved. C1 [Cheah, Singfoong; Gaston, Katherine R.; Parent, Yves O.; Jarvis, Mark W.; Smith, Kristin M.; Thornburg, Nicholas E.; Nimlos, Mark R.; Magrini-Bair, Kimberly A.] Natl Bioenergy Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA. [Vinzant, Todd B.] Chem & Biochem Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Cheah, S (reprint author), Natl Bioenergy Ctr, Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM Singfoong.cheah@nrel.gov OI Gaston, Katherine/0000-0002-1162-0905 FU Office of the Biomass Program, U.S. Department of Energy [DE-AC36-99GO10337]; National Renewable Energy Laboratory FX Funding for this research was provided by the Office of the Biomass Program, U.S. Department of Energy, under contract number DE-AC36-99GO10337 with the National Renewable Energy Laboratory. We gratefully acknowledge help on the use of the Unscrambler X Software from our colleagues Dr. Robert Evans, Ms. Whitney Jablonski, and Dr. Calvin Mukarakate; and ICP analysis conducted by Mr. Steve Deutch. NR 58 TC 23 Z9 23 U1 9 U2 88 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0926-3373 EI 1873-3883 J9 APPL CATAL B-ENVIRON JI Appl. Catal. B-Environ. PD MAY 2 PY 2013 VL 134 BP 34 EP 45 DI 10.1016/j.apcatb.2012.12.022 PG 12 WC Chemistry, Physical; Engineering, Environmental; Engineering, Chemical SC Chemistry; Engineering GA 112HO UT WOS:000316583500005 ER PT J AU Friedrich, S Bates, CR Burks, MT Drury, OB DiPrete, DP AF Friedrich, S. Bates, C. R. Burks, M. T. Drury, O. B. DiPrete, D. P. TI A Compton-vetoed germanium detector with increased sensitivity at low energies SO JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY LA English DT Article DE Isotope analysis; Germanium detectors; Compton veto; Background suppression; Spent fuel analysis; Plutonium detection AB The difficulty to directly detect plutonium in spent nuclear fuel due to the high Compton background of the fission products motivates the design of a gamma detector with improved sensitivity at low energies. We have built such a detector by operating a thin high-purity Ge detector with a large scintillator Compton veto directly behind it. The Ge detector is thin to absorb just the low-energy Pu radiation of interest while minimizing Compton scattering of high-energy radiation from the fission products. The subsequent scintillator is large so that forward-scattered photons from the Ge detector interact in it at least once to provide an anti-coincidence veto for the Ge detector. For highest sensitivity, additional material in the line of sight is minimized, the radioactive sample is kept thin, and its radiation is collimated. We will discuss the instrument design, and demonstrate the feasibility of the approach with a prototype that employs two large CsI scintillator vetoes. Initial spectra of a thin Cs-137 calibration source show a background suppression of a factor of similar to 2.5 at similar to 100 keV, limited by an unexpectedly thick 4 mm dead layer in the Ge detector. C1 [Friedrich, S.; Bates, C. R.; Burks, M. T.; Drury, O. B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Bates, C. R.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [DiPrete, D. P.] Savannah River Natl Lab, Aiken, SC 29802 USA. RP Friedrich, S (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM friedrich1@llnl.gov FU U.S. Department of Energy, Office of Nuclear Energy [FTLL11MP0206 (MPACT)]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX We gratefully acknowledge the support of the U.S. Department of Energy, Office of Nuclear Energy under grant FTLL11MP0206 (MPACT). This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 4 TC 1 Z9 1 U1 0 U2 3 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0236-5731 EI 1588-2780 J9 J RADIOANAL NUCL CH JI J. Radioanal. Nucl. Chem. PD MAY PY 2013 VL 296 IS 2 BP 927 EP 930 DI 10.1007/s10967-012-2087-1 PG 4 WC Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology SC Chemistry; Nuclear Science & Technology GA AC8MK UT WOS:000332787000002 ER PT J AU Morgan, WF Bair, WJ AF Morgan, William F. Bair, William J. TI Issues in Low Dose Radiation Biology: The Controversy Continues. A Perspective SO RADIATION RESEARCH LA English DT Review ID IONIZING-RADIATION; CANCER-RISKS; HUMAN-CELLS; DNA-DAMAGE; IN-VIVO; GENOMIC INSTABILITY; COMPUTED-TOMOGRAPHY; POSSIBLE MECHANISMS; ADAPTIVE RESPONSE; BYSTANDER AB Both natural and man-made sources of ionizing radiation contribute to human exposure and consequently pose a possible risk to human health. Much of this is unavoidable, e. g., natural background radiation, but as the use of radiation increases, so does the potential health risk and the public's concerns. This perspective reflects the authors' view of current issues in low dose radiation biology research, highlights some of the controversies therein, and suggests areas of future research to address both issues in low dose radiation research and the controversies. This is a critical time for the radiation sciences and the implications of future research will have a significant impact on radiation protection, medicine, national security, research and industry. The views expressed here are the authors' own and do not represent any institution, organization or funding body. (C) 2013 by Radiation Research Society (C) 2013 by Radiation Research Society C1 [Morgan, William F.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Bair, William J.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Morgan, WF (reprint author), Pacific NW Natl Lab, Div Biol Sci, POB 99,MSIN J4-02, Richland, WA 99352 USA. EM wfmorgan@pnnl.gov FU Battelle Memorial Institute, Pacific Northwest Division [DE- AC05-76RL0 1830]; U.S. Department of Energy (DOE), Office of Biological and Environmental Research (OBER) Low Dose Radiation Science Program FX This perspective was supported by Battelle Memorial Institute, Pacific Northwest Division, under Contract No. DE- AC05-76RL0 1830 with the U.S. Department of Energy (DOE), Office of Biological and Environmental Research (OBER) Low Dose Radiation Science Program. It does not necessarily reflect the views of these organizations. The authors acknowledge the input and support of their colleagues at the Pacific Northwest National Laboratory for their critical review of this manuscript and constructive comments and criticisms. NR 78 TC 48 Z9 51 U1 2 U2 16 PU RADIATION RESEARCH SOC PI LAWRENCE PA 810 E TENTH STREET, LAWRENCE, KS 66044 USA SN 0033-7587 EI 1938-5404 J9 RADIAT RES JI Radiat. Res. PD MAY PY 2013 VL 179 IS 5 BP 501 EP 510 DI 10.1667/RR3306.1 PG 10 WC Biology; Biophysics; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Biophysics; Radiology, Nuclear Medicine & Medical Imaging GA AA3IK UT WOS:000330985900001 PM 23560636 ER PT J AU Kronenberg, A Gauny, S Kwoh, E Grossi, G Dan, C Grygoryev, D Lasarev, M Turker, MS AF Kronenberg, Amy Gauny, Stacey Kwoh, Ely Grossi, Gianfranco Dan, Cristian Grygoryev, Dmytro Lasarev, Michael Turker, Mitchell S. TI Comparative Analysis of Cell Killing and Autosomal Mutation in Mouse Kidney Epithelium Exposed to 1 GeV Protons In Vitro or In Vivo SO RADIATION RESEARCH LA English DT Article ID IONIZING-RADIATION; SOLID TISSUES; BIOLOGICAL EFFECTIVENESS; TUMOR INCIDENCE; DEFICIENT MICE; AUGUST 1972; RAT SKIN; CANCER; MECHANISMS; RADIOTHERAPY AB Human exposure to high-energy protons occurs in space flight scenarios or, where necessary, during radiotherapy for cancer or benign conditions. However, few studies have assessed the mutagenic effective