FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Jensen, K Acosta, VM Higbie, JM Ledbetter, MP Rochester, SM Budker, D AF Jensen, K. Acosta, V. M. Higbie, J. M. Ledbetter, M. P. Rochester, S. M. Budker, D. TI Cancellation of nonlinear Zeeman shifts with light shifts SO PHYSICAL REVIEW A LA English DT Article DE alkali metals; atom-photon collisions; ground states; hyperfine structure; magnetic resonance; magnetometers; spectral line shift; Zeeman effect ID ATOMS AB Nonlinear Zeeman (NLZ) shifts arising from magnetic-field mixing of the two hyperfine ground states in alkali-metal atoms lead to splitting of magnetic-resonance lines. This is a major source of sensitivity degradation and the so-called "heading errors" of alkali-metal-vapor atomic magnetometers operating in the geophysical field range (B approximate to 0.2-0.7 G). Here, it is shown theoretically and experimentally that NLZ shifts can be effectively canceled by light shifts caused by a laser field of appropriate intensity, polarization, and frequency, a technique that can be readily applied in practical situations. C1 [Jensen, K.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark. [Jensen, K.] Danish Natl Res Fdn Ctr Quantum Opt, QUANTOP, DK-2100 Copenhagen, Denmark. [Acosta, V. M.; Ledbetter, M. P.; Rochester, S. M.; Budker, D.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Higbie, J. M.] Bucknell Univ, Dept Phys & Astron, Lewisburg, PA 17837 USA. [Budker, D.] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Jensen, K (reprint author), Univ Copenhagen, Niels Bohr Inst, Blegdamsvej 17, DK-2100 Copenhagen, Denmark. EM kjensen@nbi.dk; budker@berkeley.edu RI Acosta, Victor/G-8176-2011; Jensen, Kasper/P-8359-2014; Budker, Dmitry/F-7580-2016; OI Jensen, Kasper/0000-0002-8417-4328; Budker, Dmitry/0000-0002-7356-4814; Acosta, Victor/0000-0003-0058-9954 FU NURI [HM1582-08-1-0006]; ONR MURI; STTR grants FX The authors are grateful to E. S. Polzik for encouragement and support, to W. Gawlik for comments on the paper and to E. Corsini for helpful discussions. This work has been supported by NURI Grant No. HM1582-08-1-0006 and ONR MURI and STTR grants. NR 21 TC 13 Z9 13 U1 3 U2 18 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 FEB PY 2009 VL 79 IS 2 AR 023406 DI 10.1103/PhysRevA.79.023406 PG 5 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 413TI UT WOS:000263815000097 ER PT J AU Kim, WJ Brown-Hayes, M Dalvit, DAR Brownell, JH Onofrio, R AF Kim, W. J. Brown-Hayes, M. Dalvit, D. A. R. Brownell, J. H. Onofrio, R. TI Reply to "Comment on 'Anomalies in electrostatic calibrations for the measurement of the Casimir force in a sphere-plane geometry'" SO PHYSICAL REVIEW A LA English DT Letter DE Casimir effect; electrostatics; geometry; gravitation ID MIRRORS AB In a recent Comment, Decca [Phys. Rev. A 79, 026101 (2009)] discussed the origin of the anomalies recently reported by us in Phys. Rev. A 78, 036102(R) (2008). Here we restate our view corroborated by their considerations that quantitative geometrical and electrostatic characterizations of the conducting surfaces (a topic not discussed explicitly in the literature until very recently) are critical for the assessment of precision and accuracy of the demonstration of the Casimir force and for deriving meaningful limits on the existence of Yukawian components possibly superimposed to the Newtonian gravitational interaction. C1 [Kim, W. J.; Brown-Hayes, M.; Brownell, J. H.; Onofrio, R.] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA. [Dalvit, D. A. R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Onofrio, R.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy. RP Kim, WJ (reprint author), Yale Univ, Dept Phys, 217 Prospect St, New Haven, CT 06520 USA. NR 23 TC 23 Z9 23 U1 0 U2 3 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 FEB PY 2009 VL 79 IS 2 AR 026102 DI 10.1103/PhysRevA.79.026102 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 413TI UT WOS:000263815000197 ER PT J AU Quemener, G Balakrishnan, N Kendrick, BK AF Quemener, Goulven Balakrishnan, Naduvalath Kendrick, Brian K. TI Formation of molecular oxygen in ultracold O plus OH collisions SO PHYSICAL REVIEW A LA English DT Article DE atom-molecule collisions; atom-molecule reactions; oxygen; oxygen compounds; rotational states; vibrational states ID QUANTUM REACTIVE SCATTERING; RANGE INTERMOLECULAR FORCES; POTENTIAL-ENERGY SURFACES; TOTAL ANGULAR-MOMENTUM; ATOM-DIATOM; CHEMICAL-REACTIONS; RATE-CONSTANT; TEMPERATURES; COLD; GAS AB We discuss the formation of molecular oxygen in ultracold collisions between hydroxyl radicals and atomic oxygen. A time-independent quantum formalism based on hyperspherical coordinates is employed for the calculations. Elastic, inelastic, and reactive cross sections as well as the vibrational and rotational populations of the product O(2) molecules are reported. A J-shifting approximation is used to compute the rate coefficients. At temperatures T=10-100 mK for which the OH molecules have been cooled and trapped experimentally, the elastic and reactive rate coefficients are of comparable magnitude, while at colder temperatures, T < 1 mK, the formation of molecular oxygen becomes the dominant pathway. The validity of a classical capture model to describe cold collisions of OH and O is also discussed. While very good agreement is found between classical and quantum results at T=0.3 K, at higher temperatures, the quantum calculations predict a larger rate coefficient than the classical model, in agreement with experimental data for the O+OH reaction. The zero-temperature limiting value of the rate coefficient is predicted to be about 6x10(-12) cm(3) molecule(-1) s(-1), a value comparable to that of barrierless alkali-metal atom-dimer systems and about a factor of five larger than that of the tunneling dominated F+H(2) reaction. C1 [Quemener, Goulven; Balakrishnan, Naduvalath] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA. [Kendrick, Brian K.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Quemener, G (reprint author), Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA. FU NSF [PHY0555565, ATM-0635715]; U. S. Department of Energy [AC52-06NA25396] FX This work was supported by NSF Grants No. PHY0555565 (N.B.) and No. ATM-0635715 (N.B.). B. K. K. acknowledges that part of this work was done under the auspices of the U. S. Department of Energy at Los Alamos National Laboratory. 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 No. DE-AC52-06NA25396. NR 75 TC 22 Z9 22 U1 0 U2 12 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 FEB PY 2009 VL 79 IS 2 AR 022703 DI 10.1103/PhysRevA.79.022703 PG 8 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 413TI UT WOS:000263815000080 ER PT J AU An, JM Sefat, AS Singh, DJ Du, MH AF An, Jiming Sefat, A. S. Singh, D. J. Du, Mao-Hua TI Electronic structure and magnetism in BaMn2As2 and BaMn2Sb2 SO PHYSICAL REVIEW B LA English DT Article DE antiferromagnetic materials; barium compounds; density functional theory; energy gap; ground states; magnetic moments; magnetic semiconductors; magnetic structure; manganese compounds; thermoelectric power ID THCR2SI2 STRUCTURE; IRON; COBALT; STATE AB We study the properties of ThCr2Si2 structure BaMn2As2 and BaMn2Sb2 using density functional calculations of the electronic and magnetic properties as well as experimental measurements on single crystal samples of BaMn2As2. These materials are local moment magnets with moderate band gap antiferromagnetic semiconducting ground states. The electronic structures show substantial Mn-pnictogen hybridization, which stabilizes an intermediate spin configuration for the nominally d(5) Mn. The results are discussed in the context of possible thermoelectric applications and the relationship with the corresponding iron/cobalt/nickel compounds Ba(Fe,Co,Ni)(2)As-2. C1 [An, Jiming; Sefat, A. S.; Singh, D. J.; Du, Mao-Hua] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [An, Jiming] Wuhan Univ Technol, Wuhan 430070, Peoples R China. RP An, JM (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RI Du, Mao-Hua/B-2108-2010; Singh, David/I-2416-2012; Sefat, Athena/R-5457-2016 OI Du, Mao-Hua/0000-0001-8796-167X; Sefat, Athena/0000-0002-5596-3504 FU Department of Energy FX We are grateful for helpful discussions with B. C. Sales and D. Mandrus. This work was supported by the Department of Energy, through the Division of Materials Sciences and Engineering, the Vehicle Technologies, Propulsion Materials Program and the ORNL LDRD program. NR 34 TC 65 Z9 66 U1 6 U2 74 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 FEB PY 2009 VL 79 IS 7 AR 075120 DI 10.1103/PhysRevB.79.075120 PG 6 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800042 ER PT J AU Antoine, K Jain, H Vlcek, M Senanayake, SD Drabold, DA AF Antoine, K. Jain, H. Vlcek, M. Senanayake, S. D. Drabold, D. A. TI Chemical origin of polarization-dependent photoinduced changes in an As36Se64 glass film via in situ synchrotron x-ray photoelectron spectroscopy SO PHYSICAL REVIEW B LA English DT Article DE arsenic compounds; bonds (chemical); chalcogenide glasses; energy gap; X-ray photoelectron spectra ID CHALCOGENIDE GLASSES; ELECTRONIC-STRUCTURE; SEMICONDUCTOR-FILMS; LIGHT; TRANSFORMATIONS; ANISOTROPY AB Using in situ synchrotron x-ray photoelectron spectroscopy, we obtained high-resolution As 3d and Se 3d spectra of Se-rich As36Se64 glassy films during illumination with band-gap light. We report direct experimental evidence of the chemical origin of the light-induced scalar permanent change in the structure and, more interestingly, an indication of the chemical origin of the light-induced polarization-dependent (vector) effects. Our data show that the As atom plays a key role in both the permanent scalar effect and the vector effect. The latter is explained by the polarization-dependent interaction of homopolar -As-As- bonds in As4Se4 clusters with the band-gap light. The chemical reaction resulting from illumination explains anisotropic properties such as permanent light-induced mass transport. C1 [Antoine, K.; Jain, H.] Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA. [Vlcek, M.] Univ Pardubice, Fac Chem Technol, Dept Gen & Inorgan Chem, Pardubice 53210, Czech Republic. [Senanayake, S. D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Drabold, D. A.] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA. [Antoine, K.; Jain, H.] Lehigh Univ, Ctr Opt Technol, Bethlehem, PA 18015 USA. RP Antoine, K (reprint author), Corning Inc, SP-PR-02-17, Corning, NY 14831 USA. RI Senanayake, Sanjaya/D-4769-2009; VLCEK, Miroslav/G-1673-2015 OI Senanayake, Sanjaya/0000-0003-3991-4232; Drabold, David/0000-0001-5344-5837; FU U. S. National Science Foundation [DMR-0409588, DMR-0312081]; Czech Ministry of Education, Youth and Sports [0021627501]; Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U. S. Department of Energy [DE-AC05-00OR22725]; [DE-AC02-98CH10886] FX We thank the U. S. National Science Foundation through International Materials Institute for New Functionality in Glass for supporting this work (Grants No. DMR-0409588 and No. DMR-0312081). M. V. thanks the Czech Ministry of Education, Youth and Sports for support under Grant No. 0021627501. S. D. S. and the U12a beamline were supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U. S. Department of Energy, under Contract No. DE-AC05-00OR22725, and the use of the National Synchrotron Light Source was supported under Contract No. DE-AC02-98CH10886. NR 31 TC 14 Z9 14 U1 0 U2 4 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 FEB PY 2009 VL 79 IS 5 AR 054204 DI 10.1103/PhysRevB.79.054204 PG 7 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400036 ER PT J AU Arnold, T Payne, DJ Bourlange, A Hu, JP Egdell, RG Piper, LFJ Colakerol, L Masi, A Glans, PA Learmonth, T Smith, KE Guo, J Scanlon, DO Walsh, A Morgan, BJ Watson, GW AF Arnold, T. Payne, D. J. Bourlange, A. Hu, J. P. Egdell, R. G. Piper, L. F. J. Colakerol, L. De Masi, A. Glans, P. -A. Learmonth, T. Smith, K. E. Guo, J. Scanlon, D. O. Walsh, A. Morgan, B. J. Watson, G. W. TI X-ray spectroscopic study of the electronic structure of CuCrO2 SO PHYSICAL REVIEW B LA English DT Article DE copper compounds; density functional theory; Fermi level; magnesium; semiconductor doping; semiconductor materials; valence bands; X-ray absorption spectra; X-ray emission spectra; X-ray photoelectron spectra ID PULSED-LASER DEPOSITION; THIN-FILMS; OPTOELECTRONIC PROPERTIES; SYNCHROTRON-RADIATION; ELECTRICAL-CONDUCTION; DELAFOSSITE STRUCTURE; TRANSPARENT OXIDES; CRYSTAL-STRUCTURE; CR2O3; PHOTOEMISSION AB The electronic structure of the p-type transparent conducting oxide CuCrO2 has been studied by x-ray photoemission, x-ray absorption, and x-ray emission spectroscopies. The upper part of the valence band derives mainly from Cu 3d and Cr 3d states while the lower valence-band states are of dominant O 2p atomic character, but with pronounced mutual hybridization among Cu 3d, Cr 3d, and O 2p states. Site specific electronic excitations have been studied by resonant inelastic x-ray scattering at the Cu L and Cr L edges. Inelastic loss at the Cu L edge is dominated by on-site interband excitations similar to those found in Cu2O, while at the Cr L edge localized excitations arising from ligand field splitting of the Cr 3d levels are observed. Mg doping on the Cr sites in CuCrO2 is shown to lead to a pronounced shift in the Fermi level toward the edge of the valence band. The experimental data are compared to electronic structure calculations on CuCrO2 carried out using density-functional methods corrected for onsite Coulomb repulsion. C1 [Arnold, T.; Payne, D. J.; Bourlange, A.; Hu, J. P.; Egdell, R. G.] Univ Oxford, Inorgan Chem Lab, Dept Chem, Oxford OX1 3QR, England. [Piper, L. F. J.; Colakerol, L.; De Masi, A.; Glans, P. -A.; Learmonth, T.; Smith, K. E.] Boston Univ, Dept Phys, Boston, MA 02215 USA. [Guo, J.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Scanlon, D. O.; Walsh, A.; Morgan, B. J.; Watson, G. W.] Trinity Coll Dublin, Sch Chem, Dublin 2, Ireland. RP Egdell, RG (reprint author), Univ Oxford, Inorgan Chem Lab, Dept Chem, S Parks Rd, Oxford OX1 3QR, England. EM russell.egdell@chem.ox.ac.uk RI Glans, Per-Anders/G-8674-2016; Walsh, Aron/A-7843-2008; Scanlon, David/B-1516-2008; Morgan, Benjamin/B-2154-2008; Watson, Graeme/B-4262-2008; Payne, David/C-2117-2011; Piper, Louis/C-2960-2011; Payne, David/C-2148-2014 OI Walsh, Aron/0000-0001-5460-7033; Scanlon, David/0000-0001-9174-8601; Morgan, Benjamin/0000-0002-3056-8233; Watson, Graeme/0000-0001-6732-9474; Piper, Louis/0000-0002-3421-3210; Payne, David/0000-0002-2120-6679 FU EPSRC [GR/S94148, EP/E025722/1]; U.S. Department of Energy [DE- FG02-98ER45680, DE-AC02-05CH11231, DEAC0298CH10886]; Donors of the American Chemical Society Petroleum Research Fund; Science Foundation Ireland [06/IN.1/I92] FX Experimental work on transparent conducting oxides in Oxford is supported under EPSRC Grant No. GR/S94148 and the NCESS Facility by Grant Scienta XPS facility by EPSRC Grant No. EP/E025722/1. The Boston University program is supported in part by the U.S. Department of Energy under Contract No. DE- FG02-98ER45680 and in part by the Donors of the American Chemical Society Petroleum Research Fund. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. 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. DEAC0298CH10886. The Trinity College Dublin program is funded by Science Foundation Ireland under Grant No. 06/IN.1/I92. NR 52 TC 56 Z9 57 U1 9 U2 66 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 FEB PY 2009 VL 79 IS 7 AR 075102 DI 10.1103/PhysRevB.79.075102 PG 9 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800024 ER PT J AU Baek, SH Curro, NJ Klimczuk, T Bauer, ED Ronning, F Thompson, JD AF Baek, S. -H. Curro, N. J. Klimczuk, T. Bauer, E. D. Ronning, F. Thompson, J. D. TI First-order magnetic transition in single-crystalline CaFe2As2 detected by As-75 nuclear magnetic resonance SO PHYSICAL REVIEW B LA English DT Article DE arsenic alloys; calcium alloys; electric field gradient; electron density; iron alloys; Knight shift; magnetic transitions; spin-lattice relaxation ID LAYERED QUATERNARY COMPOUND; SUPERCONDUCTIVITY AB We report As-75 nuclear magnetic resonance (NMR) data in a single crystal of CaFe2As2. The Knight shift, electric field gradient, and spin-lattice relaxation rate are strongly temperature dependent in the paramagnetic state and change discontinuously at the structural transition temperature, T-S=T-N=167 K. Immediately below, the NMR spectra reveal an internal field at the As site associated with the presence of a commensurate magnetic order. These results indicate that the structural and magnetic transitions in CaFe2As2 are first order and strongly coupled, and that the electron density in the FeAs plane is highly sensitive to the out-of-plane structure. C1 [Baek, S. -H.; Klimczuk, T.; Bauer, E. D.; Ronning, F.; Thompson, J. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Curro, N. J.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Klimczuk, T.] Gdansk Univ Technol, Fac Appl Phys & Math, PL-80952 Gdansk, Poland. RP Baek, SH (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM sbaek@lanl.gov RI Bauer, Eric/D-7212-2011; Klimczuk, Tomasz/M-1716-2013; Baek, Seung-Ho/F-4733-2011; Curro, Nicholas/D-3413-2009 OI Klimczuk, Tomasz/0000-0003-2602-5049; Baek, Seung-Ho/0000-0002-0059-8255; Curro, Nicholas/0000-0001-7829-0237 NR 32 TC 44 Z9 44 U1 3 U2 15 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 FEB PY 2009 VL 79 IS 5 AR 052504 DI 10.1103/PhysRevB.79.052504 PG 4 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400015 ER PT J AU Becker, CA Olmsted, DL Asta, M Hoyt, JJ Foiles, SM AF Becker, C. A. Olmsted, D. L. Asta, M. Hoyt, J. J. Foiles, S. M. TI Atomistic simulations of crystal-melt interfaces in a model binary alloy: Interfacial free energies, adsorption coefficients, and excess entropy SO PHYSICAL REVIEW B LA English DT Article DE adsorption; crystal orientation; entropy; fluctuations; free energy; interface phenomena; Lennard-Jones potential; liquid theory; melting point; molecular dynamics method; Monte Carlo methods; phase diagrams; surface energy ID SOLID-LIQUID INTERFACES; LENNARD-JONES CRYSTAL; MOLECULAR-DYNAMICS; STRUCTURAL MODEL; FLUID INTERFACE; EQUILIBRIUM; SURFACE; SOLIDIFICATION; DIRECTIONS; SYSTEMS AB Monte Carlo and molecular-dynamics simulations are employed in a study of the equilibrium structural and thermodynamic properties of crystal-melt interfaces in a model binary alloy system described by Lennard-Jones interatomic interactions with zero size mismatch, a ratio of interaction strengths equal to 0.75, and interspecies interactions given by Lorentz-Berthelot mixing rules. This alloy system features a simple lens-type solid-liquid phase diagram at zero pressure, with nearly ideal solution thermodynamics in the solid and liquid solution phases. Equilibrium density profiles are computed for (100)-oriented crystal-melt interfaces and are used to derive the magnitudes of the relative adsorption coefficients (Gamma((j))(i)) at six temperatures along the solidus/liquidus boundary. The values for Gamma((2))(1), the relative adsorption of the lower melting-point species (1) with respect to the higher melting point species (2), are found to vary monotonically with temperature, with values that are positive and in the range of a few atomic percent per interface site. By contrast, values of Gamma((1))(2) display a much more complex temperature dependence with a large peak in the magnitude of the relative adsorption more than ten times larger than those found for Gamma((2))(1). The capillary fluctuation method is used to compute the temperature dependence of the magnitudes and anisotropies of the crystal-melt interfacial free energy (gamma). At all temperatures we obtain the ordering gamma(100)>gamma(110)>gamma(111) for the high-symmetry (100), (110), and (111) interface orientations. The values of gamma monotonically decrease with decreasing temperature (i.e., increasing concentration of the lower melting-point species). Using the calculated temperature-dependent values of gamma and Gamma((2))(1) in the Gibbs adsorption theorem, we estimate that roughly 25% of the temperature dependence of gamma for the alloys can be attributed to interface adsorption, while the remaining contribution arises from the relative excess entropy S-xs((2)). C1 [Becker, C. A.] Natl Inst Stand & Technol, Div Met, Gaithersburg, MD 20899 USA. [Olmsted, D. L.; Foiles, S. M.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Asta, M.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. [Hoyt, J. J.] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada. RP Becker, CA (reprint author), Natl Inst Stand & Technol, Div Met, Gaithersburg, MD 20899 USA. EM cbecker@nist.gov OI Foiles, Stephen/0000-0002-1907-454X NR 44 TC 17 Z9 17 U1 6 U2 37 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 FEB PY 2009 VL 79 IS 5 AR 054109 DI 10.1103/PhysRevB.79.054109 PG 13 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400028 ER PT J AU Benedict, LX Ogitsu, T Trave, A Wu, CJ Sterne, PA Schwegler, E AF Benedict, Lorin X. Ogitsu, Tadashi Trave, Andrea Wu, Christine J. Sterne, Philip A. Schwegler, Eric TI Calculations of high-pressure properties of beryllium: Construction of a multiphase equation of state SO PHYSICAL REVIEW B LA English DT Article DE ab initio calculations; beryllium; equations of state; free energy; high-pressure effects; phase diagrams ID AB-INITIO; DYNAMICS; MATTER; MODEL; IRON AB We describe the construction of a three-phase equation of state for elemental beryllium. The phases considered are: the ambient hcp phase, the high-temperature bcc phase, and the liquid. The free energies of the solid phases are constructed from cold, ion-thermal, and electron-thermal components derived from ab initio electronic structure-based calculations. We find that the bcc phase is unstable near ambient conditions and that even at high pressures at which the bcc phase is stable, the bcc-hcp energy barrier can be as small as a few hundred kelvins. The liquid free energy is based on a model of Chisolm and Wallace and is constrained by using the melt curve (determined by ab initio two-phase simulations) as a reference. The high-temperature plasma limit is addressed with an average-atom-in-jellium model. Comparisons to experimental results, both for the ambient hcp phase and for the phase diagram as a whole, are discussed. C1 [Benedict, Lorin X.; Ogitsu, Tadashi; Trave, Andrea; Wu, Christine J.; Sterne, Philip A.; Schwegler, Eric] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Condensed Matter & Mat Div, Livermore, CA 94500 USA. RP Benedict, LX (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Condensed Matter & Mat Div, Livermore, CA 94500 USA. RI Schwegler, Eric/F-7294-2010; Schwegler, Eric/A-2436-2016 OI Schwegler, Eric/0000-0003-3635-7418 FU U.S. Department of Energy at the Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX We thank M. Desjarlais, C. W. Greeff, D. A. Young, P. Soderlind, D. Orlikowski, A. Correa, S. P. Rudin, W. J. Evans, M. J. Lipp, and R. M. M. Wentzcovitch for helpful discussions. This work was performed under the auspices of the U.S. Department of Energy at the Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. NR 33 TC 31 Z9 33 U1 4 U2 15 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 FEB PY 2009 VL 79 IS 6 AR 064106 DI 10.1103/PhysRevB.79.064106 PG 9 WC Physics, Condensed Matter SC Physics GA 413TO UT WOS:000263815600028 ER PT J AU Bud'ko, SL Ni, N Nandi, S Schmiedeshoff, GM Canfield, PC AF Bud'ko, S. L. Ni, N. Nandi, S. Schmiedeshoff, G. M. Canfield, P. C. TI Thermal expansion and anisotropic pressure derivatives of T-c in Ba(Fe1-xCox)(2)As-2 single crystals SO PHYSICAL REVIEW B LA English DT Article DE barium compounds; cobalt compounds; iron compounds; specific heat; superconducting materials; superconducting transition temperature; thermal expansion ID DEPENDENCE; YBA2CU3O7-DELTA AB Heat capacity and anisotropic thermal expansion were measured for Ba(Fe1-xCox)(2)As-2 (x=0,0.038,0.074) single crystals. Thermal expansion is anisotropic and, in tetragonal phase, is significantly higher along the c axis. Previously reported phase transitions, including possibly split structural and magnetic for x=0.038, are clearly seen in both measurements. Uniaxial pressure derivatives of the superconducting transition temperature inferred from the Ehrenfest relation have opposite signs for in-plane and c-axis pressures for both Ba(Fe0.962Co0.038)(2)As-2 and Ba(Fe0.926Co0.074)(2)As-2, with the opposite sign of this anisotropy. C1 [Bud'ko, S. L.; Ni, N.; Nandi, S.; Canfield, P. C.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Bud'ko, S. L.; Ni, N.; Nandi, S.; Canfield, P. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Schmiedeshoff, G. M.] Occidental Coll, Dept Phys, Los Angeles, CA 90041 USA. RP Bud'ko, SL (reprint author), Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. RI Canfield, Paul/H-2698-2014 FU U. S. Department of Energy-Basic Energy Sciences [DE-AC02-07CH11358]; National Science Foundation [DMR-0704406] FX Work at the Ames Laboratory was supported by the U. S. Department of Energy-Basic Energy Sciences under Contract No. DE-AC02-07CH11358. G. M. S. was supported by the National Science Foundation under Grant No. DMR-0704406. G. M. S. acknowledges encouragement from V. Q. Heffalump. We thank Andreas Kreyssig for useful discussions and help in Laue orientation of the crystals and Jiaqiang Yan for help in synthesis. NR 26 TC 41 Z9 41 U1 0 U2 10 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 FEB PY 2009 VL 79 IS 5 AR 054525 DI 10.1103/PhysRevB.79.054525 PG 6 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400099 ER PT J AU Cao, C Kemper, AF Agapito, L Zhang, JW He, Y Rinzler, A Cheng, HP Zhang, XG Rocha, AR Sanvito, S AF Cao, Chao Kemper, A. F. Agapito, Luis Zhang, Jian-Wei He, Yao Rinzler, Andrew Cheng, Hai-Ping Zhang, X. -G. Rocha, Alexandre Reily Sanvito, Stefano TI Nonequilibrium Green's function study of Pd-4-cluster-functionalized carbon nanotubes as hydrogen sensors SO PHYSICAL REVIEW B LA English DT Article DE adsorption; carbon nanotubes; density functional theory; electric admittance; elemental semiconductors; Fermi level; gas sensors; Green's function methods; hydrogen; localised states ID ROOM-TEMPERATURE; HIGH-PERFORMANCE; NANOPARTICLES; FILMS; WIRES; GAS; PD AB Pd-cluster-functionalized carbon nanotubes (CNTs) have been shown experimentally to be effective hydrogen sensors. Semiconducting CNTs exhibit much higher sensitivity than ensemble (mixed) ones. Using the nonequilibrium Green's function method combined with the density-functional theory, we simulate and contrast the (8,0) semiconducting and the (5,5) metallic CNT model systems. We find that the electron localization effect plays a crucial role in determining electron transport. Pd clusters and hydrogen adsorption cause opposite effects on electron localization in the CNT backbone for the semiconducting CNT-based systems. Consequently Pd functionalization dramatically increases the conductance, but then it is strongly suppressed by hydrogen absorption. For the metallic CNT-based systems, there is a tiny shift of the transmission peak near the Fermi energy. These results offer a consistent explanation for the experiments. C1 [Cao, Chao; Kemper, A. F.; Agapito, Luis; Zhang, Jian-Wei; He, Yao; Rinzler, Andrew; Cheng, Hai-Ping] Univ Florida, Dept Phys, Gainesville, FL 32611 USA. [Cao, Chao; Kemper, A. F.; Agapito, Luis; Zhang, Jian-Wei; He, Yao; Cheng, Hai-Ping] Univ Florida, Quantum Theory Project, Gainesville, FL 32611 USA. [Zhang, X. -G.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci & Comp Sci, Oak Ridge, TN 37831 USA. [Zhang, X. -G.] Oak Ridge Natl Lab, Div Math, Oak Ridge, TN 37831 USA. [Rocha, Alexandre Reily; Sanvito, Stefano] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland. RP Cheng, HP (reprint author), Univ Florida, Dept Phys, Gainesville, FL 32611 USA. EM cheng@qtp.ufl.edu RI Cao, Chao/F-5190-2010; Rocha, Alexandre/F-9504-2010; Kemper, Alexander/F-8243-2016 OI Rocha, Alexandre/0000-0001-8874-6947; Kemper, Alexander/0000-0002-5426-5181 FU DOE [FG02-02ER45995] FX This work was supported by DOE under Grant No. FG02-02ER45995. The authors want to thank DOE/NERSC, CNMS/ORNL, and the University of Florida High Performance Computing Center for providing computational resources and support that contributed to the research results reported in this paper. Part of this research was also facilitated by the CNMS user program at ORNL from the Division of Scientific User Facilities, U. S. DOE. NR 29 TC 8 Z9 9 U1 1 U2 7 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 FEB PY 2009 VL 79 IS 7 AR 075127 DI 10.1103/PhysRevB.79.075127 PG 7 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800049 ER PT J AU Droubay, TC Kaspar, TC Kaspar, BP Chambers, SA AF Droubay, Timothy C. Kaspar, Tiffany C. Kaspar, Bryce P. Chambers, Scott A. TI Cation dopant distributions in nanostructures of transition-metal doped ZnO: Monte Carlo simulations SO PHYSICAL REVIEW B LA English DT Article DE II-VI semiconductors; impurity distribution; Monte Carlo methods; nanoparticles; semiconductor doping; semiconductor thin films; wide band gap semiconductors; zinc compounds ID STATISTICS; CLUSTERS; EXCHANGE; SINGLE AB Monte Carlo simulations of cation doping within the ZnO lattice were utilized to evaluate dopant distributions in nanoparticles and thin films. In structures with a high surface-to-volume ratio, dopant distributions deviate significantly from predictions based on probabilistic expressions for infinitely large bulk lattices. We present empirical expressions that accurately predict dopant bonding configurations as a function of film or particle size, shape, and dopant concentration for any substitutional dopant (cation or anion) within a tetrahedrally coordinated compound, including zinc-blende, wurtzite, and diamond structures. C1 [Droubay, Timothy C.; Kaspar, Tiffany C.; Chambers, Scott A.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. [Kaspar, Bryce P.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Droubay, TC (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. RI Droubay, Tim/D-5395-2016 OI Droubay, Tim/0000-0002-8821-0322 FU Office of Science; Division of Materials Sciences and Engineering; U.S. Department of Energy; Environmental Molecular Sciences Laboratory; Pacific Northwest National Laboratory FX This work was supported by the Office of Science, Division of Materials Sciences and Engineering, U.S. Department of Energy. This work was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Office of Biological and Environmental Research of the Department of Energy and located at Pacific Northwest National Laboratory. NR 18 TC 13 Z9 13 U1 0 U2 6 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 FEB PY 2009 VL 79 IS 7 AR 075324 DI 10.1103/PhysRevB.79.075324 PG 5 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800080 ER PT J AU French, M Mattsson, TR Nettelmann, N Redmer, R AF French, Martin Mattsson, Thomas R. Nettelmann, Nadine Redmer, Ronald TI Equation of state and phase diagram of water at ultrahigh pressures as in planetary interiors SO PHYSICAL REVIEW B LA English DT Article DE equations of state; high-pressure effects; phase diagrams; planetary interiors; planets; water ID AUGMENTED-WAVE METHOD; NEPTUNE-MASS PLANET; M-DWARF GJ-436; GIANT PLANETS; MOLECULAR-DYNAMICS; JUPITER; HYDROGEN; MODELS; SATURN; TRANSITION AB We present QMD simulations of water in the ultra-high-pressure regime up to conditions typical for the deep interior of Jupiter and Saturn. We calculate the equation of state and the Hugoniot curve and study the structural properties via pair correlation functions and self-diffusion coefficients. In the ultradense superionic phase, we find a continuous transition in the protonic structure. With rising density, the mobile protons stay with increasing probability at the octahedral sites while leaving the ice X positions to the same degree unoccupied. Water forms a fluid dense plasma at the conditions of Jupiter's core (i.e., 20 000 K, 50 Mbar, 11 g/cm(3)), while it may be superionic in the core of Saturn. We expect a substantial amount of superionic water inside Neptune. C1 [French, Martin; Nettelmann, Nadine; Redmer, Ronald] Univ Rostock, Inst Phys, D-18051 Rostock, Germany. [Mattsson, Thomas R.] Sandia Natl Labs, Pulsed Power Sci Ctr, Albuquerque, NM 87185 USA. RP French, M (reprint author), Univ Rostock, Inst Phys, D-18051 Rostock, Germany. RI Mattsson, Thomas/B-6057-2009; Redmer, Ronald/F-3046-2013 NR 46 TC 96 Z9 97 U1 13 U2 116 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 FEB PY 2009 VL 79 IS 5 AR 054107 DI 10.1103/PhysRevB.79.054107 PG 11 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400026 ER PT J AU Garlea, VO Zheludev, A Habicht, K Meissner, M Grenier, B Regnault, LP Ressouche, E AF Garlea, V. O. Zheludev, A. Habicht, K. Meissner, M. Grenier, B. Regnault, L. -P. Ressouche, E. TI Dimensional crossover in a spin-liquid-to-helimagnet quantum phase transition SO PHYSICAL REVIEW B LA English DT Article DE antiferromagnetic materials; copper compounds; critical exponents; critical points; frustration; ground states; magnetic fluids; magnetic transitions; neutron diffraction ID BOSE-EINSTEIN CONDENSATION; LAYERED-TRIANGULAR LATTICE; MAGNETIC-FIELD; SYSTEM CU2CL4-CENTER-DOT-H8C4SO2; NEUTRON-SCATTERING; CRITICAL EXPONENTS; ANTIFERROMAGNET; CRITICALITY; CRYSTAL; CSMNBR3 AB Neutron scattering is used to study magnetic-field-induced ordering in the quasi-one-dimensional quantum spin-tube compound Sul-Cu(2)Cl(4) that in zero field has a nonmagnetic spin-liquid ground state. The experiments reveal an incommensurate chiral high-field phase stabilized by a geometric frustration of the magnetic interactions. The measured critical exponents beta approximate to 0.235 and nu approximate to 0.34 at H(c)approximate to 3.7 T point to an unusual subcritical scaling regime and may reflect the chiral nature of the quantum critical point. C1 [Garlea, V. O.; Zheludev, A.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Habicht, K.; Meissner, M.] Hahn Meitner Inst Berlin GmbH, BENSC, D-14109 Berlin, Germany. [Grenier, B.; Regnault, L. -P.; Ressouche, E.] MDN, SPSMS, INAC, CEA Grenoble, F-38054 Grenoble, France. RP Garlea, VO (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. EM garleao@ornl.gov RI Garlea, Vasile/A-4994-2016; Habicht, Klaus/K-3636-2013 OI Garlea, Vasile/0000-0002-5322-7271; Habicht, Klaus/0000-0002-9915-7221 FU (U.S.) Department of Energy; Office of Basic Energy Sciences-Materials Science [DE-AC05-00OR22725]; UT-Battelle, LLC FX The authors thank M. Boehm for the help provided during preliminary measurements and R. Custelcean (ORNL) for his input into the crystal structure analysis. A meaningful discussion of the results would be impossible without the intellectual guidance provided by F. Essler, O. Tchernyshev, and I. Zaliznyak. Research at ORNL was funded by the (U.S.) Department of Energy, Office of Basic Energy Sciences-Materials Science under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. NR 35 TC 16 Z9 16 U1 1 U2 9 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 FEB PY 2009 VL 79 IS 6 AR 060404 DI 10.1103/PhysRevB.79.060404 PG 4 WC Physics, Condensed Matter SC Physics GA 413TO UT WOS:000263815600006 ER PT J AU Heald, SM Kaspar, T Droubay, T Shutthanandan, V Chambers, S Mokhtari, A Behan, AJ Blythe, HJ Neal, JR Fox, AM Gehring, GA AF Heald, Steve M. Kaspar, Tiffany Droubay, Tim Shutthanandan, V. Chambers, Scott Mokhtari, Abbas Behan, Anthony J. Blythe, Harry J. Neal, James R. Fox, A. Mark Gehring, Gillian A. TI X-ray absorption fine structure and magnetization characterization of the metallic Co component in Co-doped ZnO thin films SO PHYSICAL REVIEW B LA English DT Article DE cobalt; II-VI semiconductors; laser deposition; magnetic moments; magnetic thin films; magnetisation; semiconductor thin films; semimagnetic semiconductors; X-ray absorption spectra; zinc compounds ID ROOM-TEMPERATURE; BETA-MANGANESE; FERROMAGNETISM; SPECTROSCOPY; NANOCRYSTALS; TIO2; SYSTEM; EXAFS; OXIDE AB X-ray absorption fine-structure (XAFS) measurements have been used to characterize a series of Co-doped ZnO films grown on sapphire substrates by pulsed laser deposition. The emphasis is on characterization of the fate of the Co dopant: metallic particles or substitutional Co2+. It is shown that analysis of both the near edge and extended fine structure can provide a measurement of the fraction of metallic Co. Any quantitative understanding of magnetism in this system needs to take into account both types of Co. Results are reported for two types of films from two different groups that show distinctly different behaviors. Films grown with high concentrations of Co show varying amounts of metallic Co that could be identified as a close-packed form of Co. Another set of films was annealed in Zn vapor to induce magnetism. These films also showed significant metallic Co, but of a different type similar to the CoZn intermetallic. The bulk forms of both metals are magnetic and should contribute to the magnetism. However, the measured room-temperature magnetic moments for some films are inconsistent with the expected moments based on the bulk magnetic values for either Co metal or CoZn. The magnetic properties of the small metal particles are likely changed by their surroundings. Low-temperature magnetic measurements for one of the samples confirmed this with an estimated blocking temperature of 50 K. C1 [Heald, Steve M.] Argonne Natl Lab, Argonne, IL 60439 USA. [Kaspar, Tiffany; Droubay, Tim; Shutthanandan, V.; Chambers, Scott] Pacific NW Natl Lab, Richland, WA 99352 USA. [Mokhtari, Abbas; Behan, Anthony J.; Blythe, Harry J.; Neal, James R.; Fox, A. Mark; Gehring, Gillian A.] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England. RP Heald, SM (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Fox, Mark/F-1096-2010; Droubay, Tim/D-5395-2016 OI Fox, Mark/0000-0002-9025-2441; Droubay, Tim/0000-0002-8821-0322 FU U. S. Department of Energy's office of Basic Energy Sciences; NSERC, Simon Fraser University; Advanced Photon Source; U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Department of Energy's Office of Biological and Environmental Research; U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; Engineering and Physical Sciences Research Council; A.H.B. (studentship) FX PNC/XOR facilities at the Advanced Photon Source and research at these facilities are supported by the U. S. Department of Energy's office of Basic Energy Sciences, a major facilities access grant from NSERC, Simon Fraser University, and the Advanced Photon Source. Use of the Advanced Photon Source is also supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. Work at Pacific Northwest National Laboratory was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research, and was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering. The Sheffield group would like to acknowledge support from the Engineering and Physical Sciences Research Council for J.R.N., H.J.B., and A.H.B. (studentship), and for experimental facilities. NR 42 TC 45 Z9 48 U1 1 U2 35 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 FEB PY 2009 VL 79 IS 7 AR 075202 DI 10.1103/PhysRevB.79.075202 PG 11 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800051 ER PT J AU Hu, RW Mitrovic, VF Petrovic, C AF Hu, Rongwei Mitrovic, V. F. Petrovic, C. TI Magnetism and metal-insulator transition in Fe(Sb1-xTex)(2) SO PHYSICAL REVIEW B LA English DT Article DE antiferromagnetic materials; antimony compounds; crystal structure; ferromagnetic materials; ground states; hopping conduction; iron compounds; magnetic semiconductors; metal-insulator transition; semiconductor doping; strongly correlated electron systems ID LOW-TEMPERATURE TRANSPORT; FESB2; SEMICONDUCTOR; SYSTEMS AB We have investigated structural, magnetic, and transport properties of Fe(Sb1-xTex)(2) single crystals. Whereas metallic ground state is induced for x=0.001, canted antiferromagnetism is observed for 0.1 <= x <= 0.4 with an intermediate ferromagnetic phase for x=0.2. With higher Te doping, semiconducting behavior is restored and the variable range hopping conduction mechanism dominates at low temperatures for 0.4 <= x <= 0.6. We discuss our results within the framework of inverted metal to insulator in correlated electron insulators. C1 [Hu, Rongwei; Petrovic, C.] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. [Hu, Rongwei; Mitrovic, V. F.] Brown Univ, Dept Phys, Providence, RI 02912 USA. RP Hu, RW (reprint author), Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. RI Petrovic, Cedomir/A-8789-2009; Hu, Rongwei/E-7128-2012 OI Petrovic, Cedomir/0000-0001-6063-1881; FU U. S. Department of Energy [DE-Ac02-98CH10886]; U. S. Department of Energy FX This work was carried out at the Brookhaven National Laboratory, which is operated for the U. S. Department of Energy by Brookhaven Science Associates (Contract No. DE-Ac02-98CH10886). This work was supported by the Office of Basic Energy Sciences of the U. S. Department of Energy. NR 26 TC 14 Z9 14 U1 1 U2 14 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 FEB PY 2009 VL 79 IS 6 AR 064510 DI 10.1103/PhysRevB.79.064510 PG 5 WC Physics, Condensed Matter SC Physics GA 413TO UT WOS:000263815600072 ER PT J AU Jeong, IK AF Jeong, I. -K. TI Temperature evolution of short- and medium-range ionic correlations in relaxor ferroelectric [Pb(Zn1/3Nb2/3)O-3](1-x)[PbTiO3](x) (x=0.05, 0.12) SO PHYSICAL REVIEW B LA English DT Article DE crystal structure; ferroelectric transitions; lead compounds; relaxor ferroelectrics ID PHASE-TRANSITIONS; LOCAL-STRUCTURE; PBMG1/3NB2/3O3; POLARIZATION; BEHAVIOR; BATIO3 AB We performed temperature-dependent neutron pair distribution function (PDF) analysis on relaxor ferroelectric [Pb(Zn1/3Nb2/3)O-3](1-x)[PbTiO3](x) (PZN-xPT) (x=0.05 and 0.12) from 550 to 150 K. The experimental PDF spectra clearly demonstrate that PZN-5%PT and PZN-12%PT have basically same ionic pair correlations up to the pair distance r similar to 15 A at all temperatures despite their difference in low-temperature long-range crystal structures. At longer pair distances 30 < r < 50 A, however, ionic pair correlations of PZN-5%PT and PZN-12%PT gradually diverge from each other below T similar to 450 K. Based on these PDF results, we propose that a distinct ordering of polar nanoregions develops between PZN-5%PT and PZN-12%PT with decreasing temperature. C1 [Jeong, I. -K.] Pusan Natl Univ, Dept Phys Educ, Pusan 609735, South Korea. [Jeong, I. -K.] Pusan Natl Univ, Res Ctr Dielect & Adv Matter Phys, Pusan 609735, South Korea. [Jeong, I. -K.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Jeong, IK (reprint author), Pusan Natl Univ, Dept Phys Educ, Pusan 609735, South Korea. EM jeong@pusan.ac.kr FU Korean Government [KRF-2007-331-C00087, KRF-2006-005-J02804]; Los Alamos National Security [DE-AC52-06NA25396]; NSF [DMR 00-76488] FX This work was supported by the Korea Research Foundation Grant funded by the Korean Government (Grants No. KRF-2007-331-C00087 and No. KRF-2006-005-J02804). I.-K.J. thanks J. K. Lee for providing samples used in this study. Neutron diffraction measurements have benefited from the use of NPDF at the Lujan Center at Los Alamos Neutron Science Center funded by DOE Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. The upgrade of NPDF was funded by NSF through Grant No. DMR 00-76488. NR 40 TC 14 Z9 14 U1 2 U2 9 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 FEB PY 2009 VL 79 IS 5 AR 052101 DI 10.1103/PhysRevB.79.052101 PG 4 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400001 ER PT J AU Kim, KW Gu, GD AF Kim, K. W. Gu, G. D. TI Optical excitations in Sr2CuO3 SO PHYSICAL REVIEW B LA English DT Article DE charge transfer states; excitons; high-temperature superconductors; Hubbard model; optical conductivity; reflectivity; strontium compounds ID DEPENDENCE; EXCITONS AB We investigated excitation spectra of the one-dimensional chain compound Sr2CuO3. The small peak at 2.3 eV in the loss function turned out to correspond to the strong charge-transfer transition at 1.8 eV in conductivity. It has the excitonic character expected in one-dimensional extended Hubbard model of the transition from the lower Hubbard band to the Zhang-Rice singlet state. The strongest peak at 2.7 eV in the loss function is attributed to the continuum excitation of the excitonic charge-transfer transition. The spectral weight sum rule is satisfied within these transitions. C1 [Kim, K. W.] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland. [Kim, K. W.] Seoul Natl Univ, Sch Phys, Seoul 151747, South Korea. [Kim, K. W.] Seoul Natl Univ, Res Ctr Oxide Elect, Seoul 151747, South Korea. [Gu, G. D.] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. RP Kim, KW (reprint author), Univ Fribourg, Dept Phys, Chemin Musee 3, CH-1700 Fribourg, Switzerland. EM kyungwan.kim@gmail.com RI Kim, Kyungwan/A-9242-2012; Gu, Genda/D-5410-2013 OI Kim, Kyungwan/0000-0003-3833-5378; Gu, Genda/0000-0002-9886-3255 FU Schweizer National Funds (SNF) [200020-119784]; U. S. Department of Energy under Contract [DE-AC02-98CH10886]; MOST; POSCO FX This work was supported by the Schweizer National Funds (SNF) under Grant No. 200020-119784 and by the U. S. Department of Energy under Contract No. DE-AC02-98CH10886. The experiments at PLS were supported by MOST and POSCO. NR 20 TC 1 Z9 1 U1 0 U2 4 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 FEB PY 2009 VL 79 IS 8 AR 085121 DI 10.1103/PhysRevB.79.085121 PG 5 WC Physics, Condensed Matter SC Physics GA 413TS UT WOS:000263816000034 ER PT J AU Koitzsch, A Opahle, I Elgazzar, S Borisenko, SV Geck, J Zabolotnyy, VB Inosov, D Shiozawa, H Richter, M Knupfer, M Fink, J Buchner, B Bauer, ED Sarrao, JL Follath, R AF Koitzsch, A. Opahle, I. Elgazzar, S. Borisenko, S. V. Geck, J. Zabolotnyy, V. B. Inosov, D. Shiozawa, H. Richter, M. Knupfer, M. Fink, J. Buechner, B. Bauer, E. D. Sarrao, J. L. Follath, R. TI Electronic structure of CeCoIn5 from angle-resolved photoemission spectroscopy SO PHYSICAL REVIEW B LA English DT Article DE band structure; Brillouin zones; cerium alloys; cobalt alloys; density functional theory; Fermi level; Fermi surface; heavy fermion superconductors; indium alloys; photoelectron spectra ID SUPERCONDUCTIVITY AB We have investigated the low-energy electronic structure of the heavy-fermion superconductor CeCoIn5 by angle-resolved photoemission and band-structure calculations. We measured the Fermi surface and energy distribution maps along the high-symmetry directions at h nu=100 eV and T=25 K. The compound has quasi-two-dimensional Fermi-surface sheets centered at the M-A line of the Brillouin zone. The band-structure calculations have been carried out within the local-density approximation where the 4f electrons have been treated either localized or itinerant. We discuss the comparison to the experimental data and the implications for the nature of the 4f electrons at the given temperature. C1 [Koitzsch, A.; Opahle, I.; Elgazzar, S.; Borisenko, S. V.; Geck, J.; Zabolotnyy, V. B.; Inosov, D.; Shiozawa, H.; Richter, M.; Knupfer, M.; Fink, J.; Buechner, B.] IFW Dresden, D-01171 Dresden, Germany. [Fink, J.; Follath, R.] BESSY, D-12489 Berlin, Germany. [Bauer, E. D.; Sarrao, J. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Koitzsch, A (reprint author), IFW Dresden, POB 270116, D-01171 Dresden, Germany. RI Inosov, Dmytro/B-6781-2008; Bauer, Eric/D-7212-2011; Borisenko, Sergey/G-6743-2012; Fink, Joerg/A-6003-2012; Buchner, Bernd/E-2437-2016; Richter, Manuel/F-2485-2016; Shiozawa, Hidetsugu/A-5206-2017 OI Bauer, Eric/0000-0003-0017-1937; Borisenko, Sergey/0000-0002-5046-4829; Buchner, Bernd/0000-0002-3886-2680; Richter, Manuel/0000-0002-9999-8290; Shiozawa, Hidetsugu/0000-0003-0603-2508 FU DFG [SFB 463] FX We acknowledge helpful discussions with S. L. Molodtsov, J. D. Denlinger, and J. W. Allen and technical support by R. Hubel, S. Leger, and R. Schonfelder. The work was supported by the DFG via SFB 463. NR 32 TC 25 Z9 25 U1 5 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 FEB PY 2009 VL 79 IS 7 AR 075104 DI 10.1103/PhysRevB.79.075104 PG 7 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800026 ER PT J AU Kolasinski, RD Whaley, JA Bastasz, R AF Kolasinski, Robert D. Whaley, Josh A. Bastasz, Robert TI Real-space ion scattering maps of the Mg(0001) surface SO PHYSICAL REVIEW B LA English DT Article ID ENERGY; RELAXATION; SPECTRA; SOLIDS AB Low-energy ion scattering (LEIS) is useful for examining the structure of ordered surfaces as well as for identifying surface atoms. However, in some cases the structural information from LEIS measurements is obscured by complex collision processes which contribute to the detected scattering intensity. In this study, we have developed a more precise approach for examining surface structure that includes comparing experimental real-space ion scattering maps with simulations from binary collision codes using reliability factors. This method is demonstrated with the model system 2 keV Ne(+)-> Mg(0001). Using an angle-resolved ion energy spectrometer, the intensity of scattered Ne(+) from the surface was recorded for a complete set of polar and azimuthal angles, which define the orientation of the surface with respect to the incident beam. These angles were then transformed to distances in real space and used to compile an ion scattering map of the Mg(0001) surface. A simulated map was also generated for the same conditions using a modified version of the binary collision code MARLOWE. The maps provide a comprehensive overview of surface scattering and allow the locations of surface atoms to be correlated directly to regions of enhanced scattering intensity. The sensitivity of the LEIS signal to interatomic spacing was simulated using MARLOWE, and methods for comparing with experiments were developed. Because LEIS can distinguish different types of atoms on the surface, the techniques described here could be extended to map compound surfaces and adsorbates. C1 [Kolasinski, Robert D.; Whaley, Josh A.; Bastasz, Robert] Sandia Natl Labs, Hydrogen & Met Sci Dept, Livermore, CA 94551 USA. RP Kolasinski, RD (reprint author), Sandia Natl Labs, Hydrogen & Met Sci Dept, POB 969,MS 9161, Livermore, CA 94551 USA. EM rkolasi@sandia.gov FU National Nuclear Security Administration, United States Department of Energy [DE-AC04-94AL85000] FX We would like to express our appreciation to Dean Buchenauer for his assistance with the computer modeling. In addition, we thank Norman Bartelt and Kevin McCarty for providing many useful comments. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the National Nuclear Security Administration, United States Department of Energy (Contract No. DE-AC04-94AL85000). NR 19 TC 2 Z9 2 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 FEB PY 2009 VL 79 IS 7 AR 075416 DI 10.1103/PhysRevB.79.075416 PG 9 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800096 ER PT J AU Kong, LZ Cooper, VR Nijem, N Li, KH Li, J Chabal, YJ Langreth, DC AF Kong, Lingzhu Cooper, Valentino R. Nijem, Nour Li, Kunhao Li, Jing Chabal, Yves J. Langreth, David C. TI Theoretical and experimental analysis of H-2 binding in a prototypical metal-organic framework material SO PHYSICAL REVIEW B LA English DT Article DE adsorption; density functional theory; heat of adsorption; hydrogen; hydrogen storage; infrared spectra; van der Waals forces; zinc compounds ID HYDROGEN STORAGE; ADSORPTION; SORPTION AB Hydrogen adsorption by the metal-organic framework (MOF) structure Zn-2(BDC)(2)(TED) is investigated using a combination of experimental and theoretical methods. By using the nonempirical van der Waals density-functional approach, it is found that the locus of deepest H-2 binding positions lies within two types of narrow channel. The energies of the most stable binding sites, as well as the number of such binding sites, are consistent with the values obtained from experimental adsorption isotherms and heat of adsorption data. Calculations of the shift of the H-H stretch frequency when adsorbed in the MOF give a value of approximately -30 cm(-1) at the strongest binding point in each of the two channels. Ambient temperature infrared-absorption spectroscopy measurements give a hydrogen peak centered at 4120 cm(-1), implying a shift consistent with the theoretical calculations. C1 [Kong, Lingzhu; Cooper, Valentino R.; Langreth, David C.] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Cooper, Valentino R.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Nijem, Nour; Chabal, Yves J.] Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75080 USA. [Li, Kunhao; Li, Jing] Rutgers State Univ, Dept Chem & Chem Biol, Piscataway, NJ 08854 USA. RP Kong, LZ (reprint author), Rutgers State Univ, Dept Phys & Astron, POB 849, Piscataway, NJ 08854 USA. RI Chabal, Yves/A-5998-2011; Cooper, Valentino /A-2070-2012 OI Chabal, Yves/0000-0002-6435-0347; Cooper, Valentino /0000-0001-6714-4410 FU DOE [DE-FG0-208ER46491]; NSF [DMR-0456937]; DOE FX This work was supported by DOE under Grant No. DE-FG0-208ER46491. Work of V. R. C. at Rutgers was supported by NSF under Grant No. DMR-0456937 until 9/15/08 and by DOE, Division of Materials Sciences and Engineering at ORNL after 9/15/08. NR 27 TC 40 Z9 40 U1 1 U2 12 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 FEB PY 2009 VL 79 IS 8 AR 081407 DI 10.1103/PhysRevB.79.081407 PG 4 WC Physics, Condensed Matter SC Physics GA 413TS UT WOS:000263816000012 ER PT J AU Li, SL de la Cruz, C Huang, Q Chen, Y Lynn, JW Hu, JP Huang, YL Hsu, FC Yeh, KW Wu, MK Dai, PC AF Li, Shiliang de la Cruz, Clarina Huang, Q. Chen, Y. Lynn, J. W. Hu, Jiangping Huang, Yi-Lin Hsu, Fong-Chi Yeh, Kuo-Wei Wu, Maw-Kuen Dai, Pengcheng TI First-order magnetic and structural phase transitions in Fe1+ySexTe1-x SO PHYSICAL REVIEW B LA English DT Article ID SUPERCONDUCTIVITY; DIAGRAM; SYSTEMS; FE2TE3; METAL; TE AB We use bulk magnetic susceptibility, electronic specific heat, and neutron scattering to study structural and magnetic phase transitions in Fe1+ySexTe1-x. Fe1.068Te exhibits a first-order phase transition near 67 K with a tetragonal-to-monoclinic structural transition and simultaneously develops a collinear antiferromagnetic (AF) order responsible for the entropy change across the transition. Systematic studies of the FeSe1-xTex system reveal that the AF structure and lattice distortion in these materials are different from those of FeAs-based pnictides. These results call into question the conclusions of present density-functional calculations, where FeSe1-xTex and FeAs-based pnictides are expected to have similar Fermi surfaces and therefore the same spin-density wave AF order. C1 [Li, Shiliang; de la Cruz, Clarina; Dai, Pengcheng] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [de la Cruz, Clarina; Dai, Pengcheng] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Huang, Q.; Chen, Y.; Lynn, J. W.] Natl Inst Stand & Technol, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA. [Hu, Jiangping] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA. [Huang, Yi-Lin; Hsu, Fong-Chi; Yeh, Kuo-Wei; Wu, Maw-Kuen] Acad Sinica, Inst Phys, Taipei, Taiwan. RP Li, SL (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. RI Li, Shiliang/B-9379-2009; Dai, Pengcheng /C-9171-2012; Hu, Jiangping/A-9154-2010; dela Cruz, Clarina/C-2747-2013; hu, jiangping /C-3320-2014 OI Dai, Pengcheng /0000-0002-6088-3170; Hu, Jiangping/0000-0003-4480-1734; dela Cruz, Clarina/0000-0003-4233-2145; FU U.S. NSF [DMR-0756568, PHY-0603759]; U.S. DOE [DE-FG02-05ER46202]; Division of Scientific User Facilities FX We thank David Singh for helpful discussions. This work was supported by the U.S. NSF under Grants No. DMR-0756568 and No. PHY-0603759, by the BES, U.S. DOE through Grant No. DE-FG02-05ER46202, and Division of Scientific User Facilities. NR 43 TC 357 Z9 360 U1 11 U2 82 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 FEB PY 2009 VL 79 IS 5 AR 054503 DI 10.1103/PhysRevB.79.054503 PG 7 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400077 ER PT J AU Lu, JQ Zhang, XG Pantelides, ST AF Lu, Jun-Qiang Zhang, X. -G. Pantelides, Sokrates T. TI Standing spin waves excited optically across an indirect gap in short graphene nanoribbons SO PHYSICAL REVIEW B LA English DT Article DE band structure; carbon; nanostructured materials; spin density waves AB We report theoretical investigations that unveil unique electronic excitations in graphene nanoribbons of nanoscale length. The main point is that electronic states in short nanowires are standing particle-in-a-box-like waves, amenable to excitation by electromagnetic radiation. The unusual electronic and magnetic properties of graphene nanoribbons add another feature: terahertz (THz) radiation induces edge standing spin waves with different wavelengths at the two edges and a resonant frequency that can be controlled by an external gate voltage, opening the possibility of THz-spintronic applications. C1 [Lu, Jun-Qiang; Zhang, X. -G.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Zhang, X. -G.] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. [Pantelides, Sokrates T.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Pantelides, Sokrates T.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. RP Lu, JQ (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RI LU, JUN-QIANG/B-9511-2008 OI LU, JUN-QIANG/0000-0002-0758-9925 FU DOE [FDEFG0203ER46096]; McMinn Endowment FX This research was conducted at the CNMS sponsored at ORNL by the Division of Scientific User Facilities, U.S. DOE. The work was further supported by the DOE Grant No. FDEFG0203ER46096, and by the McMinn Endowment at Vanderbilt University. NR 15 TC 5 Z9 5 U1 0 U2 5 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 FEB PY 2009 VL 79 IS 7 AR 073408 DI 10.1103/PhysRevB.79.073408 PG 4 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800018 ER PT J AU Luo, WD Varela, M Tao, J Pennycook, SJ Pantelides, ST AF Luo, Weidong Varela, Maria Tao, Jing Pennycook, Stephen J. Pantelides, Sokrates T. TI Electronic and crystal-field effects in the fine structure of electron energy-loss spectra of manganites SO PHYSICAL REVIEW B LA English DT Article DE calcium compounds; crystal field interactions; doping; electron energy loss spectra; fine structure; lanthanum compounds ID X-RAY-ABSORPTION; TRANSITION-METAL OXIDES; OXYGEN K-EDGE; LOSS SPECTROMETRY; CHARGE; SPECTROSCOPY; LA1-XSRXMNO3; STATE; FILMS AB The fine structure of oxygen-K electron energy-loss spectra (EELS) of transition-metal oxides is known to correlate with nominal oxidation states (NOSs) that are often interpreted as charge states. Here we report calculations of O-K EELS in LaxCa1-xMnO3 that agree with measured spectra and show that the variation in the prepeak's intensity with doping is controlled by the orbital occupancy of the majority-spin Mn 3d states, while its width is controlled by crystal-field splitting. The results confirm an earlier conclusion that the NOS extracted from EELS corresponds only to orbital occupancies, while the physical charge renders all atoms electrically neutral, even in so-called ionic crystals. C1 [Luo, Weidong; Pantelides, Sokrates T.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. [Luo, Weidong; Varela, Maria; Pennycook, Stephen J.; Pantelides, Sokrates T.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Tao, Jing] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. RP Luo, WD (reprint author), Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. RI Varela, Maria/H-2648-2012; Varela, Maria/E-2472-2014; Luo, Weidong/A-8418-2009 OI Varela, Maria/0000-0002-6582-7004; Luo, Weidong/0000-0003-3829-1547 FU DOE Office of Basic Energy Sciences FX Research was sponsored by the DOE Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, and by the McMinn Endowment at Vanderbilt University. Computations were performed at the National Energy Research Scientific Computing Center. NR 33 TC 18 Z9 18 U1 2 U2 27 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 FEB PY 2009 VL 79 IS 5 AR 052405 DI 10.1103/PhysRevB.79.052405 PG 4 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400009 ER PT J AU Manley, ME Said, AH Fluss, MJ Wall, M Lashley, JC Alatas, A Moore, KT Shvyd'ko, Y AF Manley, M. E. Said, A. H. Fluss, M. J. Wall, M. Lashley, J. C. Alatas, A. Moore, K. T. Shvyd'ko, Yu. TI Phonon density of states of alpha- and delta-plutonium by inelastic x-ray scattering SO PHYSICAL REVIEW B LA English DT Article DE entropy; gallium alloys; phonons; plutonium; plutonium alloys; specific heat; thermal expansion; X-ray scattering ID THERMAL-EXPANSION; HEAT-CAPACITY; TEMPERATURES; METALS AB Inelastic x-ray scattering measurements of the phonon density of states (DOS) were performed on polycrystalline samples of pure alpha-Pu and delta-Pu(0.98)Ga(0.02) at room temperature. The heat capacity of alpha-Pu is well reproduced by contributions calculated from the measured phonon DOS plus conventional thermal-expansion and electronic contributions, showing that alpha-Pu is a "well-behaved" metal in this regard. A comparison of the phonon DOS of the two phases at room temperature showed that the vibrational entropy difference between them is only a quarter of the total entropy difference expected from known thermodynamic measurements. The missing entropy is too large to be accounted for by conventional electronic entropy and evidence from the literature rules out a contribution from spin fluctuations. Possible alternative sources for the missing entropy are discussed. C1 [Manley, M. E.; Fluss, M. J.; Wall, M.; Moore, K. T.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Said, A. H.; Alatas, A.; Shvyd'ko, Yu.] Argonne Natl Lab, Argonne, IL 60439 USA. [Lashley, J. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Manley, ME (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RI Manley, Michael/N-4334-2015 FU Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-ACOZ06CH11357]; NSF [DMR-0115852] FX Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-ACOZ06CH11357. The construction of HERIX was partially supported by the NSF under Grant No. DMR-0115852. NR 36 TC 9 Z9 9 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 FEB PY 2009 VL 79 IS 5 AR 052301 DI 10.1103/PhysRevB.79.052301 PG 4 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400004 ER PT J AU Mehmood, F Kara, A Rahman, TS Henry, CR AF Mehmood, Faisal Kara, Abdelkader Rahman, Talat S. Henry, Claude R. TI Comparative study of CO adsorption on flat, stepped, and kinked Au surfaces using density functional theory SO PHYSICAL REVIEW B LA English DT Article DE ab initio calculations; adsorption; binding energy; carbon compounds; gold; vibrational modes; work function ID TOTAL-ENERGY CALCULATIONS; GENERALIZED GRADIENT APPROXIMATION; WAVE BASIS-SET; METAL-SURFACES; CARBON-MONOXIDE; ATOM SCATTERING; WORK-FUNCTION; MOLECULES; NOBLE; EMISSION AB Our ab initio calculations of CO adsorption energies on low-Miller-index [(111) and (100)], stepped (211), and kinked (532) gold surfaces show a strong dependence on local coordination with a reduction in Au atom coordination leading to higher binding energies. We find trends in adsorption energies to be similar to those reported in experiments and calculations for other metal surfaces. The (532) surface provides insights into these trends because of the availability of a large number of kink sites which naturally have the lowest coordination (6). We also find that for all surfaces an increase in CO coverage triggers a decrease in the adsorption energy. Changes in the work function upon CO adsorption, as well as the frequencies of the CO vibrational modes, are calculated, and their coverage dependence is reported. C1 [Kara, Abdelkader; Rahman, Talat S.] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA. [Mehmood, Faisal] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Henry, Claude R.] CNRS, Ctr Interdisciplinaire Nanosci Marseille, UPR 3118, F-13288 Marseille 09, France. [Henry, Claude R.] Aix Marseille Univ, Marseille, France. RP Kara, A (reprint author), Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA. EM kkara@physics.ucf.edu RI bartelsdoe, ludwig/F-8008-2011 FU NSF [CHE-0741423] FX A. K. thanks CINaM for support. We acknowledge financial support from NSF Grant No. CHE-0741423. NR 45 TC 33 Z9 33 U1 2 U2 29 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 FEB PY 2009 VL 79 IS 7 AR 075422 DI 10.1103/PhysRevB.79.075422 PG 6 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800102 ER PT J AU Merkel, S Tome, C Wenk, HR AF Merkel, Sebastien Tome, Carlos Wenk, Hans-Rudolf TI Modeling analysis of the influence of plasticity on high pressure deformation of hcp-Co SO PHYSICAL REVIEW B LA English DT Article DE cobalt; deformation; elastic moduli; elastoplasticity; hardening; high-pressure effects; internal stresses; slip; twinning ID CRYSTAL ELASTIC-MODULI; EARTHS INNER-CORE; X-RAY-DIFFRACTION; LATTICE STRAINS; NANOCRYSTALLINE COBALT; NEUTRON-DIFFRACTION; INTERNAL-STRESSES; MAGNESIUM ALLOY; 15 GPA; IRON AB Previously measured in situ x-ray diffraction is used to assess the development of internal elastic strains within grains of a sample of polycrystalline cobalt plastically deformed up to a pressure of 42.6 GPa. An elastoplastic self-consistent polycrystal model is used to simulate the macroscopic flow curves and internal strain development within the sample. Input parameters are single-crystal elastic moduli and their pressure dependence, critical resolved shear stresses, and hardening behavior of the slip and twinning mechanisms which are active in Co crystals. At 42 GPa, the differential stress in hcp-Co is 1.9 +/- 0.1 GPa. The comparison between experimental and predicted data leads us to conclude that: (a) plastic relaxation plays a primary role in controlling the evolution and ordering of the lattice strains; (b) the plastic behavior of hcp-Co deforming under high pressure is controlled by basal and prismatic slip of < a > dislocations, and either pyramidal slip of < c+a > dislocations, or compressive twinning, or both. Basal slip is by far the easiest and most active deformation mechanism. Elastoplastic self-consistent models are shown to overcome the limitations of models based on continuum elasticity theory for the interpretation of x-ray diffraction data measured on stressed samples. They should be used for the interpretation of these experiments. C1 [Merkel, Sebastien] Univ Sci & Technol Lille, CNRS, Lab Struct Proprietes Etat Solide, F-59655 Villeneuve Dascq, France. [Tome, Carlos] Los Alamos Natl Lab, MST Div, Los Alamos, NM 87545 USA. [Wenk, Hans-Rudolf] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. RP Merkel, S (reprint author), Univ Sci & Technol Lille, CNRS, Lab Struct Proprietes Etat Solide, F-59655 Villeneuve Dascq, France. EM sebastien.merkel@univ-lille1.fr RI Merkel, Sebastien/E-5501-2011; Tome, Carlos/D-5058-2013 OI Merkel, Sebastien/0000-0003-2767-581X; FU Miller Institute for Basic Research in Science; ANR program DiUP; NSF [EAR-0337006]; CDAC FX The authors want to thank B. Clausen for his input. S.M. acknowledges support from the Miller Institute for Basic Research in Science and ANR program DiUP. H.-R.W. appreciates support from NSF EAR-0337006 and CDAC. NR 74 TC 42 Z9 42 U1 4 U2 20 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 FEB PY 2009 VL 79 IS 6 AR 064110 DI 10.1103/PhysRevB.79.064110 PG 13 WC Physics, Condensed Matter SC Physics GA 413TO UT WOS:000263815600032 ER PT J AU Ohldag, H van der Laan, G Arenholz, E AF Ohldag, H. van der Laan, G. Arenholz, E. TI Correlation of crystallographic and magnetic domains at Co/NiO(001) interfaces SO PHYSICAL REVIEW B LA English DT Article DE annealing; antiferromagnetic materials; chemical analysis; cobalt; exchange interactions (electron); ferromagnetic materials; interface magnetism; magnetic anisotropy; magnetic domains; magnetic moments; nickel compounds; X-ray microscopy; X-ray spectra ID ANISOTROPY MAGNETOSTRICTION; EXCHANGE BIAS; FERROMAGNET; SURFACE; WALLS; NIO AB Using soft x-ray spectromicroscopy we show that NiO(001) exhibits a crystallographic and magnetic domain structure near the surface identical to that of the bulk. Upon Co deposition a perpendicular coupling between the Ni and Co moments is observed that persists even after formation of uncompensated Ni spins at the interface through annealing. The chemical composition at the interface alters its crystallographic structure and leads to a reorientation of the Ni moments from the < 112 > to the < 110 > direction. We show that this reorientation is driven by changes in the magnetocrystalline anisotropy rather than exchange coupling mediated by residual uncompensated spins. C1 [Ohldag, H.] Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA. [Arenholz, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [van der Laan, G.] Diamond Light Source, Didcot OX11 0DE, Oxon, England. RP Ohldag, H (reprint author), Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA. RI Ohldag, Hendrik/F-1009-2014; van der Laan, Gerrit/Q-1662-2015 OI van der Laan, Gerrit/0000-0001-6852-2495 FU U. S. Department of Energy [DE-AC02-05CH11231] FX The ALS is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U. S. Department of Energy under Contract No. DE-AC02-05CH11231. SSRL is a national user facility, operated by Stanford university on behalf of the US Department of Energy, Office of Basic Energy Science. NR 16 TC 24 Z9 24 U1 2 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 FEB PY 2009 VL 79 IS 5 AR 052403 DI 10.1103/PhysRevB.79.052403 PG 4 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400007 ER PT J AU Ohsawa, T Lyubinetsky, I Du, Y Henderson, MA Shutthanandan, V Chambers, SA AF Ohsawa, T. Lyubinetsky, I. Du, Y. Henderson, M. A. Shutthanandan, V. Chambers, S. A. TI Crystallographic dependence of visible-light photoactivity in epitaxial TiO2-xNx anatase and rutile SO PHYSICAL REVIEW B LA English DT Article DE hopping conduction; organic compounds; photochemistry; semiconductor doping; semiconductor epitaxial layers; semiconductor materials; titanium compounds ID N-DOPED TIO2; TITANIUM-DIOXIDE; ELECTRONIC-STRUCTURE; TRIMETHYL ACETATE; TIO2(110); PHOTOCATALYSIS; SURFACE; SEMICONDUCTOR; TIO2(001); ADSORPTION AB Nitrogen-doped TiO2 materials have been shown to exhibit visible-light photoactivity, but the operative mechanism(s) are not well understood. Here we use structurally and compositionally well-defined epitaxial films of TiO2-xNx anatase (001) and rutile (110) (x <=similar to 0.02) to show a qualitative difference between the visible-light activities for the two polymorphs. Holes generated by visible light at N sites in anatase (001) readily diffuse to the surface and oxidize adsorbed trimethyl acetate while the same in rutile (110) remain trapped in the bulk. In light of the low doping densities that can be achieved in phase-pure material, conventional wisdom suggests that holes should be trapped at N sites in both polymorphs. Although the detailed mechanism is not yet understood, these results suggest that the hole hopping probability is much higher along the [001] direction in N-doped anatase than along the [110] direction in N-doped rutile. C1 [Ohsawa, T.; Henderson, M. A.; Chambers, S. A.] Pacific NW Natl Lab, Div Mat & Chem Sci, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. [Lyubinetsky, I.; Du, Y.; Shutthanandan, V.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Ohsawa, T (reprint author), Pacific NW Natl Lab, Div Mat & Chem Sci, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. RI Ohsawa, Takeo/A-5373-2010 FU Department of Energy's Office of Biological and Environmental Research; Pacific Northwest National Laboratory; U. S. Department of Energy, Office of Science, Division of Chemical Sciences FX This work was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. This work was supported by the U. S. Department of Energy, Office of Science, Division of Chemical Sciences. NR 34 TC 41 Z9 41 U1 1 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 FEB PY 2009 VL 79 IS 8 AR 085401 DI 10.1103/PhysRevB.79.085401 PG 7 WC Physics, Condensed Matter SC Physics GA 413TS UT WOS:000263816000063 ER PT J AU Pratt, DK Zhao, Y Kimber, SAJ Hiess, A Argyriou, DN Broholm, C Kreyssig, A Nandi, S Bud'ko, SL Ni, N Canfield, PC McQueeney, RJ Goldman, AI AF Pratt, D. K. Zhao, Y. Kimber, S. A. J. Hiess, A. Argyriou, D. N. Broholm, C. Kreyssig, A. Nandi, S. Bud'ko, S. L. Ni, N. Canfield, P. C. McQueeney, R. J. Goldman, A. I. TI Suppression of antiferromagnetic spin fluctuations in the collapsed phase of CaFe2As2 SO PHYSICAL REVIEW B LA English DT Article DE antiferromagnetic materials; calcium compounds; magnetic superconductors; neutron diffraction; spin fluctuations ID NEUTRON-SCATTERING; SUPERCONDUCTIVITY AB Inelastic neutron-scattering measurements of CaFe2As2 under applied hydrostatic pressure show that the antiferromagnetic spin fluctuations observed in the ambient pressure, paramagnetic, and tetragonal (T) phase are strongly suppressed, if not absent, in the collapsed tetragonal (cT) phase. These results are consistent with a quenched Fe moment in the cT phase and the strong decrease in resistivity observed upon crossing the boundary from the T to cT phases. The suppression or absence of static antiferromagnetic order and dynamic spin fluctuations in the nonsuperconducting cT phase supports the notion of a coupling between spin fluctuations and superconductivity in the iron arsenides. C1 [Pratt, D. K.; Kreyssig, A.; Nandi, S.; Bud'ko, S. L.; Ni, N.; Canfield, P. C.; McQueeney, R. J.; Goldman, A. I.] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA. [Pratt, D. K.; Kreyssig, A.; Nandi, S.; Bud'ko, S. L.; Ni, N.; Canfield, P. C.; McQueeney, R. J.; Goldman, A. I.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Zhao, Y.; Broholm, C.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. [Kimber, S. A. J.; Argyriou, D. N.] Helmholtz Zentrum Berlin Mat & Energie, D-14109 Berlin, Germany. [Hiess, A.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France. RP Pratt, DK (reprint author), Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA. RI Broholm, Collin/E-8228-2011; Canfield, Paul/H-2698-2014; McQueeney, Robert/A-2864-2016; OI Broholm, Collin/0000-0002-1569-9892; McQueeney, Robert/0000-0003-0718-5602; Kimber, Simon/0000-0003-0489-1851 FU U. S. Department of Energy Office of Science [DE-AC02 07CH11358]; Johns Hopkins Institute for Quantum Matter [DEFG0208ER46544] FX We gratefully acknowledge the ILL for their rapid allocation of time and their support for this work. Work is supported by the U. S. Department of Energy Office of Science under the following contracts: at the Ames Laboratory under Contract No. DE-AC02 07CH11358 and at the Johns Hopkins Institute for Quantum Matter under Contract No. DEFG0208ER46544. NR 24 TC 47 Z9 47 U1 2 U2 20 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 FEB PY 2009 VL 79 IS 6 AR 060510 DI 10.1103/PhysRevB.79.060510 PG 4 WC Physics, Condensed Matter SC Physics GA 413TO UT WOS:000263815600022 ER PT J AU Qazilbash, MM Brehm, M Andreev, GO Frenzel, A Ho, PC Chae, BG Kim, BJ Yun, SJ Kim, HT Balatsky, AV Shpyrko, OG Maple, MB Keilmann, F Basov, DN AF Qazilbash, M. M. Brehm, M. Andreev, G. O. Frenzel, A. Ho, P. -C. Chae, Byung-Gyu Kim, Bong-Jun Yun, Sun Jin Kim, Hyun-Tak Balatsky, A. V. Shpyrko, O. G. Maple, M. B. Keilmann, F. Basov, D. N. TI Infrared spectroscopy and nano-imaging of the insulator-to-metal transition in vanadium dioxide SO PHYSICAL REVIEW B LA English DT Article DE effective mass; infrared spectra; insulating thin films; metal-insulator transition; optical microscopy; vanadium compounds ID FIELD OPTICAL MICROSCOPY; ELECTRON-LATTICE INTERACTIONS; ELASTIC LIGHT-SCATTERING; MOTT-HUBBARD; BAND THEORY; VO2; PEIERLS; VIEW; BI2SR2CACU2O8+DELTA; SUPERCONDUCTIVITY AB We present a detailed infrared study of the insulator-to-metal transition (IMT) in vanadium dioxide (VO(2)) thin films. Conventional infrared spectroscopy was employed to investigate the IMT in the far field. Scanning near-field infrared microscopy directly revealed the percolative IMT with increasing temperature. We confirmed that the phase transition is also percolative with cooling across the IMT. We present extensive near-field infrared images of phase coexistence in the IMT regime in VO(2). We find that the coexisting insulating and metallic regions at a fixed temperature are static on the time scale of our measurements. A distinctive approach for analyzing the far-field and near-field infrared data within the Bruggeman effective medium theory was employed to extract the optical constants of the incipient metallic puddles at the onset of the IMT. We found divergent effective carrier mass in the metallic puddles that demonstrates the importance of electronic correlations to the IMT in VO(2). We employ the extended dipole model for a quantitative analysis of the observed near-field infrared amplitude contrast and compare the results with those obtained with the basic dipole model. C1 [Qazilbash, M. M.; Andreev, G. O.; Frenzel, A.; Ho, P. -C.; Shpyrko, O. G.; Maple, M. B.; Basov, D. N.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Brehm, M.; Keilmann, F.] Max Planck Inst Biochem, Abt Mol Strukturbiol, D-82152 Munich, Germany. [Brehm, M.; Keilmann, F.] Ctr NanoSci, D-82152 Munich, Germany. [Ho, P. -C.] Calif State Univ Fresno, Dept Phys, Fresno, CA 93740 USA. [Chae, Byung-Gyu; Kim, Bong-Jun; Yun, Sun Jin; Kim, Hyun-Tak] Elect & Telecommun Res Inst, IT Convergence & Components Lab, Taejon 305350, South Korea. [Balatsky, A. V.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Balatsky, A. V.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Qazilbash, MM (reprint author), Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. EM mumtaz@physics.ucsd.edu RI Shpyrko, Oleg/J-3970-2012; Frenzel, Alex/E-4133-2015 NR 73 TC 77 Z9 78 U1 4 U2 74 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 FEB PY 2009 VL 79 IS 7 AR 075107 DI 10.1103/PhysRevB.79.075107 PG 10 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800029 ER PT J AU Rangan, S Bersch, E Bartynski, RA Garfunkel, E Vescovo, E AF Rangan, Sylvie Bersch, Eric Bartynski, Robert Allen Garfunkel, Eric Vescovo, Elio TI Band offsets of a ruthenium gate on ultrathin high-kappa oxide films on silicon SO PHYSICAL REVIEW B LA English DT Article DE alumina; conduction bands; core levels; electron affinity; energy gap; hafnium compounds; high-k dielectric thin films; interface states; ruthenium; silicon compounds; ultraviolet photoelectron spectra; valence bands; work function; X-ray photoelectron spectra ID EFFECTIVE WORK FUNCTION; GAP STATES; METAL; SEMICONDUCTOR; TECHNOLOGY; DIELECTRICS AB Valence-band and conduction-band edges of ultrathin oxides (SiO2, HfO2, Hf0.7Si0.3O2, and Al2O3 grown on silicon) and their shifts upon sequential metallization with ruthenium have been measured using synchrotron-radiation-excited x-ray, ultraviolet, and inverse photoemissions. From these techniques, the offsets between the valence-band and conduction-band edges of the oxides, and the ruthenium metal gate Fermi edge have been directly measured. In addition the core levels of the oxides and the ruthenium have been characterized. Upon deposition, Ru remains metallic and no chemical alteration of the underlying oxide gates, or interfacial SiO2 in the case of the high-kappa thin films, can be detected. However a clear shift of the band edges is measured for all samples due to the creation of an interface dipole at the ruthenium-oxide interface. Using the energy gap, the electron affinity of the oxides, and the ruthenium work function that have been directly measured on these samples, the experimental band offsets are compared to those predicted by the induced gap states model. C1 [Rangan, Sylvie; Bersch, Eric; Bartynski, Robert Allen] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Rangan, Sylvie; Bersch, Eric; Bartynski, Robert Allen; Garfunkel, Eric] Rutgers State Univ, Surface Modificat Lab, Piscataway, NJ 08854 USA. [Garfunkel, Eric] Rutgers State Univ, Dept Chem & Chem Biol, Piscataway, NJ 08854 USA. [Vescovo, Elio] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Rangan, S (reprint author), Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA. RI Rangan, Sylvie/H-6522-2013 FU U. S. Department of Energy; Office of Science; Office of Basic Energy Sciences [DE-AC02-98CH10886] FX The authors acknowledge the generous support of the Semiconductor Research Corporation and the National Science Foundation. We are grateful for the beam time allocation at the NSLS. The National Synchrotron Light Source, Brookhaven National Laboratory, is supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. NR 25 TC 8 Z9 8 U1 0 U2 6 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 FEB PY 2009 VL 79 IS 7 AR 075106 DI 10.1103/PhysRevB.79.075106 PG 10 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800028 ER PT J AU Rousochatzakis, I Lauchli, A Borsa, F Luban, M AF Rousochatzakis, Ioannis Laeuchli, Andreas Borsa, Ferdinando Luban, Marshall TI Theory of severe slowdown in the relaxation of rings and clusters with antiferromagnetic interactions SO PHYSICAL REVIEW B LA English DT Article DE antiferromagnetic materials; chromium; fluctuations; iron alloys; lithium alloys; nanostructured materials; quadrupole interactions; rings (structures); sodium alloys; spin dynamics ID MAGNETIC-RELAXATION; MOLECULES AB We show that in the severe slowing-down temperature regime the relaxation of antiferromagnetic rings and similar magnetic nanoclusters is governed by the quasicontinuum portion of their quadrupolar fluctuation spectrum and not by the lowest excitation lines. This is at the heart of the intriguing near-universal power-law temperature dependence of the electronic correlation frequency omega(c) with an exponent close to 4. The onset of this behavior is defined by an energy scale which is fixed by the lowest spin gap Delta(0). This explains why the experimental curves of omega(c) for different cluster sizes and spins nearly coincide when T is rescaled by Delta(0). C1 [Rousochatzakis, Ioannis] Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland. [Laeuchli, Andreas] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany. [Borsa, Ferdinando] Univ Pavia, Dipartimento Fis A Volta, I-27100 Pavia, Italy. [Borsa, Ferdinando] Univ Pavia, Unita CNISM, I-27100 Pavia, Italy. [Borsa, Ferdinando; Luban, Marshall] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Borsa, Ferdinando; Luban, Marshall] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Rousochatzakis, I (reprint author), Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland. EM ioannis.rousochatzakis@epfl.ch RI Lauchli, Andreas/B-1930-2008; Rousochatzakis, Ioannis/A-5787-2009 OI Lauchli, Andreas/0000-0002-2272-2691; Rousochatzakis, Ioannis/0000-0002-5517-8389 FU Basic Energy Sciences,; Department of Energy [DE-AC02-07CH11358] FX We thank F. Mila and M. Belesi for fruitful discussions. The work at EPFL was supported by the Swiss National Fund. Work at the Ames Laboratory was supported by the Basic Energy Sciences, Department of Energy under Contract No. DE-AC02-07CH11358. NR 22 TC 8 Z9 8 U1 1 U2 1 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 FEB PY 2009 VL 79 IS 6 AR 064421 DI 10.1103/PhysRevB.79.064421 PG 5 WC Physics, Condensed Matter SC Physics GA 413TO UT WOS:000263815600060 ER PT J AU Samolyuk, GD Antropov, VP AF Samolyuk, G. D. Antropov, V. P. TI Character of magnetic instabilities in CaFe2As2 SO PHYSICAL REVIEW B LA English DT Article DE antiferromagnetism; calcium compounds; density functional theory; frustration; high-temperature superconductors; iron compounds; magnetic susceptibility; spin fluctuations ID METALS AB The density-functional spin susceptibility has been analyzed in different phases of CaFe2As2 and compared with similar data for pure d metals. The conditions for the "no local-moment" itinerant state with large frustrations are found for the "collapsed" phase. This itineracy determines the instability versus the incommensurate magnetic order for the narrow region of wave vectors. For the ambient pressure phase, the local moments on Fe atoms with much less frustrated antiferromagnetic interactions are stabilized and a magnetic short-range or long-range order is developed. The system is close to the point of magnetic instability and spin fluctuations should be included to describe properties of this system. C1 [Samolyuk, G. D.; Antropov, V. P.] Ames Lab, Ames, IA 50011 USA. RP Samolyuk, GD (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. FU U. S. Department of Energy, Basic Energy Sciences [DE-AC0207CH11358] FX V. A. would like to thank S. Bud'ko and K. Belashchenko for continuing inspiring discussions. Work at the Ames Laboratory was supported by the U. S. Department of Energy, Basic Energy Sciences, under Contract No. DE-AC0207CH11358. NR 16 TC 12 Z9 12 U1 1 U2 12 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 FEB PY 2009 VL 79 IS 5 AR 052505 DI 10.1103/PhysRevB.79.052505 PG 4 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400016 ER PT J AU Sengupta, P Batista, CD McDonald, RD Cox, S Singleton, J Huang, L Papageorgiou, TP Ignatchik, O Herrmannsdorfer, T Manson, JL Schlueter, JA Funk, KA Wosnitza, J AF Sengupta, P. Batista, C. D. McDonald, R. D. Cox, S. Singleton, J. Huang, L. Papageorgiou, T. P. Ignatchik, O. Herrmannsdoerfer, T. Manson, J. L. Schlueter, J. A. Funk, K. A. Wosnitza, J. TI Nonmonotonic field dependence of the Neel temperature in the quasi-two-dimensional magnet [Cu(HF2)(pyz)(2)]BF4 SO PHYSICAL REVIEW B LA English DT Article DE antiferromagnetic materials; Heisenberg model; Neel temperature; organic compounds ID QUANTUM HEISENBERG-ANTIFERROMAGNET; LONG-RANGE ORDER; 2-DIMENSIONAL SYSTEMS; SQUARE LATTICE; PHASE-DIAGRAM; MONTE-CARLO; METASTABILITY; TRANSITION AB The measured thermodynamic phase diagram of the quasi-two-dimensional magnet [Cu(HF2)(pyz)(2)]BF4(pyz=pyrazine=N2C4H4) exhibits an unusual nonmonotonic dependence of the Neel temperature T-N as a function of magnetic field H. The nonmonotonic behavior of T-N(H) results from two competing effects induced by the field: while H suppresses the amplitude of the order parameter by polarizing the spins along a given direction, it also reduces the phase fluctuations by changing the order parameter space from the sphere S-2 to the circle S-1. The latter effect dominates at low fields only if the system is close enough to its lower critical dimension (d(c)=2), i.e., when fluctuations become important. Our theoretical results reproduce the measured phase diagram and demonstrate that this unusual effect is realized in [Cu(HF2)(pyz)(2)]BF4. C1 [Sengupta, P.; Batista, C. D.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Sengupta, P.; McDonald, R. D.; Cox, S.; Singleton, J.] Los Alamos Natl Lab, NHMFL, MPA, Los Alamos, NM 87545 USA. [Huang, L.; Papageorgiou, T. P.; Ignatchik, O.; Herrmannsdoerfer, T.; Wosnitza, J.] Forschungszentrum Dresden Rossendorf, Hochfeld Magnetlab Dresden HLD, D-01314 Dresden, Germany. [Manson, J. L.] Eastern Washington Univ, Dept Chem & Biochem, Cheney, WA 99004 USA. [Funk, K. A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Sengupta, P (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RI McDonald, Ross/H-3783-2013; Sengupta, Pinaki/B-6999-2011; Batista, Cristian/J-8008-2016; Herrmannsdorfer, Thomas/K-5888-2015; OI McDonald, Ross/0000-0002-0188-1087; Mcdonald, Ross/0000-0002-5819-4739 FU U.S. DOE [W-7405-ENG-36]; DOE; NSF; Office of Basic Energy Sciences, Division of Materials Sciences, U. S. Department of Energy [DE-AC02-06CH11357] FX LANL is supported by the U.S. DOE under Contract No. W-7405-ENG-36. NHMFL is supported by the DOE, the NSF, and the state of Florida. Research at Argonne National Laboratory was supported by the Office of Basic Energy Sciences, Division of Materials Sciences, U. S. Department of Energy, under Contract No. DE-AC02-06CH11357. NR 36 TC 25 Z9 25 U1 0 U2 5 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 FEB PY 2009 VL 79 IS 6 AR 060409 DI 10.1103/PhysRevB.79.060409 PG 4 WC Physics, Condensed Matter SC Physics GA 413TO UT WOS:000263815600011 ER PT J AU Sknepnek, R Samolyuk, G Lee, YB Schmalian, J AF Sknepnek, Rastko Samolyuk, German Lee, Yong-bin Schmalian, Joerg TI Anisotropy of the pairing gap of FeAs-based superconductors induced by spin fluctuations SO PHYSICAL REVIEW B LA English DT Article DE Fermi surface; fluctuations in superconductors; iron compounds; magnetic anisotropy; type II superconductors ID SYSTEMS; ORDER AB We determine the anisotropy of the spin-fluctuation-induced pairing gap on the Fermi surface of the FeAs-based superconductors as function of the exchange and Hund's coupling J(H). We find that for sufficiently large J(H), nearly commensurate magnetic fluctuations yield a fully gapped s(+/-)-pairing state with small anisotropy of the gap amplitude on each Fermi-surface sheet, but significant variations of the gap amplitude for different sheets of the Fermi surface. In particular, we obtain the large variation of the gap amplitude on different Fermi-surface sheets, as seen in angular resolved photoemission spectroscopy experiments. For smaller values of Hund's coupling incommensurate magnetic fluctuations yield an s(+/-)-pairing state with line nodes. Such a state is also possible once the anisotropy of the material is reduced and three-dimensional effects come into play. C1 [Sknepnek, Rastko] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Sknepnek, R (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RI Schmalian, Joerg/H-2313-2011; OI Sknepnek, Rastko/0000-0002-0144-9921 FU Ames Laboratory; U. S. Department of Energy by Iowa State University [DE-AC02-07CH11358] FX We are grateful to S. L. Bud'ko, P. C. Canfield, A. V. Chubukov, V. Cvetkovic, A. Kaminski, I. Mazin, R. Prozorov, and J. Zhang for helpful discussions. We express special thanks for continued interest and inspiration to B. N. Harmon. This research was supported by the Ames Laboratory, operated for the U. S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. NR 38 TC 38 Z9 38 U1 0 U2 6 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 FEB PY 2009 VL 79 IS 5 AR 054511 DI 10.1103/PhysRevB.79.054511 PG 9 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400085 ER PT J AU Souza, AM Soares-Pinto, DO Sarthour, RS Oliveira, IS Reis, MS Brandao, P dos Santos, AM AF Souza, A. M. Soares-Pinto, D. O. Sarthour, R. S. Oliveira, I. S. Reis, M. S. Brandao, P. dos Santos, A. M. TI Entanglement and Bell's inequality violation above room temperature in metal carboxylates SO PHYSICAL REVIEW B LA English DT Article DE Bell theorem; magnetic susceptibility; molecular magnetism; organic compounds; quantum entanglement; quantum optics ID MAGNETIC-SUSCEPTIBILITY; MOLECULAR MAGNETS; SYSTEMS; STATES; CLUSTERS; QUBITS; CU AB In the present work we show that a particular family of materials, the metal carboxylates, may have entangled states up to very high temperatures. From magnetic-susceptibility measurements, we have estimated the critical temperature below which entanglement exists in the copper carboxylate {Cu-2(O2CH)(4)}{Cu(O2CH)(2)(2-methylpyridine)(2)}, and we have found this to be above room temperature (T-e similar to 630 K). Furthermore, the results show that the system remains maximally entangled until close to similar to 100 K and the Bell's inequality is violated up to nearly room temperature (similar to 290 K). C1 [Reis, M. S.; Brandao, P.] Univ Aveiro, CICECO, P-3810193 Aveiro, Portugal. [dos Santos, A. M.] Oak Ridge Natl Lab, NSSD, Oak Ridge, TN 37831 USA. [Souza, A. M.; Soares-Pinto, D. O.; Sarthour, R. S.; Oliveira, I. S.] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil. RP Souza, AM (reprint author), Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada. EM amsouza@cbpf.br RI Oliveira, Ivan/A-4196-2012; Soares-Pinto, Diogo/A-1821-2012; 1, INCT/G-5846-2013; Informacao quantica, Inct/H-9493-2013; Brandao, Paula/J-3759-2013; de souza, alexandre/D-4164-2015; dos Santos, Antonio/A-5602-2016 OI Soares-Pinto, Diogo/0000-0002-4293-6144; Brandao, Paula/0000-0002-4746-6073; de souza, alexandre/0000-0002-3220-9082; dos Santos, Antonio/0000-0001-6900-0816 FU CNPq; CAPES; Brazilian Millennium Institute for Quantum Information; PCI-CBPF program; Laboratory Directed Research and Development Program; Oak Ridge National Laboratory (ORNL); U. S. Department of Energy [DE-AC0500OR22725] FX The authors acknowledge support from the Brazilian funding agencies CNPq, CAPES, and the Brazilian Millennium Institute for Quantum Information. M. S. R. acknowledges financial support from the PCI-CBPF program. This research was partially sponsored by the Laboratory Directed Research and Development Program and the Division of Materials Sciences and Engineering of Oak Ridge National Laboratory (ORNL) managed by UT-Battelle, LLC for the U. S. Department of Energy under Contract No. DE-AC0500OR22725. NR 37 TC 31 Z9 31 U1 0 U2 12 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 FEB PY 2009 VL 79 IS 5 AR 054408 DI 10.1103/PhysRevB.79.054408 PG 5 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400049 ER PT J AU Tanaka, Y Yokoyama, T Balatsky, AV Nagaosa, N AF Tanaka, Yukio Yokoyama, Takehito Balatsky, Alexander V. Nagaosa, Naoto TI Theory of topological spin current in noncentrosymmetric superconductors SO PHYSICAL REVIEW B LA English DT Article DE bound states; quantum Hall effect; spin Hall effect; spin polarised transport; superconducting materials ID P-WAVE SUPERCONDUCTORS; HGTE QUANTUM-WELLS; SURFACE-STATES AB We study the spin transport properties of the noncentrosymmetric superconductor with time-reversal symmetry where spin-triplet (p(x)+/- ip(y))-wave and spin-singlet s-wave pair potentials can mix with each other. We show that when the amplitude of the (p(x)+/- ip(y))-wave pair potential is larger than that of s-wave one, the superconducting state belongs to the topologically nontrivial class analogous to the quantum spin Hall system, and the resulting helical edge modes as Andreev bound states are topologically protected. We find that the incident angle dependent spin polarized current flows through the interface due to the presence of the helical edge modes. With a weak magnetic field, also the angle-integrated current is strongly spin polarized. C1 [Tanaka, Yukio; Yokoyama, Takehito] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan. [Balatsky, Alexander V.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Nagaosa, Naoto] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan. [Nagaosa, Naoto] RIKEN, ASI, Cross Correlated Mat Res Grp CMRG, Wako, Saitama 3510198, Japan. RP Tanaka, Y (reprint author), Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan. RI Yokoyama, Takehito/B-8695-2012; Yukio, Tanaka/F-4140-2012; Nagaosa, Naoto/G-7057-2012 FU Ministry of Education, Culture, Sports, Science, and Technology, Japan; [20654030] FX This work was partly supported by the Grant-in-Aids under Grant No. 20654030 and NAREGI Nanoscience Project from the Ministry of Education, Culture, Sports, Science, and Technology, Japan, NTT basic research laboratories, DOE BES, and by LDRD. NR 34 TC 135 Z9 135 U1 1 U2 12 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 FEB PY 2009 VL 79 IS 6 AR 060505 DI 10.1103/PhysRevB.79.060505 PG 4 WC Physics, Condensed Matter SC Physics GA 413TO UT WOS:000263815600017 ER PT J AU Varela, M Oxley, MP Luo, W Tao, J Watanabe, M Lupini, AR Pantelides, ST Pennycook, SJ AF Varela, M. Oxley, M. P. Luo, W. Tao, J. Watanabe, M. Lupini, A. R. Pantelides, S. T. Pennycook, S. J. TI Atomic-resolution imaging of oxidation states in manganites SO PHYSICAL REVIEW B LA English DT Article DE calcium compounds; density functional theory; electron energy loss spectra; lanthanum compounds; scanning electron microscopy; transmission electron microscopy; valency ID ELECTRON-ENERGY-LOSS; TRANSITION-METAL OXIDES; X-RAY-ABSORPTION; LOSS SPECTROSCOPY; EDGE STRUCTURES; NOISE TRANSFER; WHITE LINES; CCD CAMERAS; 3D; SPECTRA AB Aberration corrected electron optics allows routine acquisition of high spatial resolution spectroscopic images in the scanning transmission electron microscope, which is important when trying to understand the physics of transition-metal oxides such as manganites. The physical properties of these perovskites are intimately related to the occupancies of the partially filled 3d bands, which define their oxidation state. In this work, we review procedures to obtain this electronic property in La(x)Ca(1-x)MnO(3) from atomic-column-resolved electron energy-loss spectra measured in the aberration corrected scanning transmission electron microscope. In bulk samples, several features of both the average Mn L(2,3) edge and the O K edge fine structure change linearly with Mn nominal valence. These linear correlations are extracted and used as a calibration to quantify oxidation states from atomic resolution spectroscopic images. In such images, the same fine-structure features exhibit further changes, commensurate with the underlying atomic lattice. Mn valence values calculated from those images show unexpected oscillations. The combination of experiment with density-functional theory and dynamical scattering simulations allows detailed interpretation of these maps, distinguishing dynamical scattering effects from actual changes in electronic properties related to the local atomic structure. Specifically, in LaMnO(3), the two nonequivalent O sites can be distinguished by these methods. C1 [Varela, M.; Oxley, M. P.; Luo, W.; Tao, J.; Lupini, A. R.; Pantelides, S. T.; Pennycook, S. J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Oxley, M. P.; Luo, W.; Pantelides, S. T.; Pennycook, S. J.] Vanderbilt Univ, Nashville, TN 37235 USA. [Watanabe, M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA. RP Varela, M (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RI Varela, Maria/H-2648-2012; Varela, Maria/E-2472-2014; Luo, Weidong/A-8418-2009 OI Varela, Maria/0000-0002-6582-7004; Luo, Weidong/0000-0003-3829-1547 NR 55 TC 117 Z9 117 U1 1 U2 61 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 FEB PY 2009 VL 79 IS 8 AR 085117 DI 10.1103/PhysRevB.79.085117 PG 14 WC Physics, Condensed Matter SC Physics GA 413TS UT WOS:000263816000030 ER PT J AU Walsh, A Da Silva, JLF Yan, YF Al-Jassim, MM Wei, SH AF Walsh, Aron Da Silva, Juarez L. F. Yan, Yanfa Al-Jassim, M. M. Wei, Su-Huai TI Origin of electronic and optical trends in ternary In2O3(ZnO)(n) transparent conducting oxides (n=1,3,5): Hybrid density functional theory calculations SO PHYSICAL REVIEW B LA English DT Article DE conduction bands; density functional theory; II-VI semiconductors; indium compounds; optical constants; red shift; valence bands; wide band gap semiconductors; zinc compounds ID TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; THIN-FILMS; SEMICONDUCTORS; IN2O3; ZNO AB Ternary oxides formed from zinc and indium have demonstrated potential for commercial optoelectronic applications. We present state-of-the-art hybrid density functional theory calculations for Zn-poor and Zn-rich compositions of the crystalline In2O3(ZnO)(n) compounds. We reveal the origin of the redshift in optical transitions compared to the two component oxides: symmetry forbidden band-edge transitions in In2O3 are overcome on formation of the superlattices, with Zn-O contributions to the top of the valence band. Increasing n results in the localization of the conduction-band minimum on the In-O networks. This enhanced localization explains why Zn-poor compounds (lower n) exhibit optimal conductivity. C1 [Walsh, Aron; Da Silva, Juarez L. F.; Yan, Yanfa; Al-Jassim, M. M.; Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Walsh, A (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. RI Walsh, Aron/A-7843-2008; Da Silva, Juarez L. F./D-1779-2011 OI Walsh, Aron/0000-0001-5460-7033; Da Silva, Juarez L. F./0000-0003-0645-8760 FU U.S. Department of Energy (DOE) [DE-AC3608GO28308] FX We thank G. Kresse for the provision of VASP 5.1 for the HSE calculations. This work is supported by the U.S. Department of Energy (DOE) under Contract No. DE-AC3608GO28308. NR 30 TC 48 Z9 48 U1 2 U2 25 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 FEB PY 2009 VL 79 IS 7 AR 073105 DI 10.1103/PhysRevB.79.073105 PG 3 WC Physics, Condensed Matter SC Physics GA 413TQ UT WOS:000263815800005 ER PT J AU Zhang, Y Xiang, HJ Whangbo, MH AF Zhang, Y. Xiang, H. J. Whangbo, M. -H. TI Interplay between Jahn-Teller instability, uniaxial magnetism, and ferroelectricity in Ca3CoMnO6 SO PHYSICAL REVIEW B LA English DT Article ID SPIN-EXCHANGE INTERACTIONS; DENSITY-FUNCTIONAL THEORY; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; POLARIZATION; MULTIFERROICS; SPECTRA; SOLIDS; METALS AB Ca3CoMnO6 is composed of CoMnO6 chains made up of face-sharing CoO6 trigonal prisms and MnO6 octahedra. The structural, magnetic, and ferroelectric properties of this compound were investigated on the basis of density-functional theory calculations. Ca3CoMnO6 is found to undergo a Jahn-Teller distortion associated with the CoO6 trigonal prisms containing high-spin Co2+ (d(7)) ions, which removes the C-3 rotational symmetry and hence uniaxial magnetism. However, the Jahn-Teller distortion is not strong enough to fully quench the orbital moment of the high-spin Co2+ ions thereby leading to an electronic state with substantial magnetic anisotropy. The Jahn-Teller distorted Ca3CoMnO6 in the magnetic ground state with up-up-down-down spin arrangement is predicted to have electric polarizations much greater than experimentally observed. Implications of the discrepancy between theory and experiment were discussed. C1 [Zhang, Y.; Whangbo, M. -H.] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA. [Xiang, H. J.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Zhang, Y (reprint author), N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA. RI Xiang, Hongjun/A-4076-2008; Zhang, Yuemei/H-7370-2012; Xiang, Hongjun/I-4305-2016 OI Xiang, Hongjun/0000-0002-9396-3214 FU U. S. Department of Energy [DE-FG02-86ER45259] FX The work at North Carolina State University was supported by the Office of Basic Energy Sciences, Division of Materials Sciences, U. S. Department of Energy under Grant No. DE-FG02-86ER45259. NR 31 TC 48 Z9 49 U1 1 U2 28 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 FEB PY 2009 VL 79 IS 5 AR 054432 DI 10.1103/PhysRevB.79.054432 PG 6 WC Physics, Condensed Matter SC Physics GA 413TM UT WOS:000263815400073 ER PT J AU Abelev, BI Aggarwal, MM Ahammed, Z Anderson, BD Arkhipkin, D Averichev, GS Bai, Y Balewski, J Barannikova, O Barnby, LS Baudot, J Baumgart, S Beavis, DR Bellwied, R Benedosso, F Betts, RR Bhardwaj, S Bhasin, A Bhati, AK Bichsel, H Bielcik, J Bielcikova, J Biritz, B Bland, LC Bombara, M Bonner, BE Botje, M Bouchet, J Braidot, E Brandin, AV Bueltmann, S Burton, TP Bystersky, M Cai, XZ Caines, H Sanchez, MCD Callner, J Catu, O Cebra, D Cendejas, R Cervantes, MC Chajecki, Z Chaloupka, P Chattopadhyay, S Chen, HF Chen, JH Chen, JY Cheng, J Cherney, M Chikanian, A Choi, KE Christie, W Chung, SU Clarke, RF Codrington, MJM Coffin, JP Cormier, TM Cosentino, MR Cramer, JG Crawford, HJ Das, D Dash, S Daugherity, M de Moira, MM Dedovich, TG DePhillips, M Derevschikov, AA de Souza, RD Didenko, L Dictel, T Djawotho, P Dogra, SM Dong, X Drachenberg, JL Draper, JE Du, F Dunlop, JC Mazumdar, MRD Edwards, WR Efimov, LG Elhalhuli, E Elnimr, M Emelianov, V Engelage, J Eppley, G Erazmus, B Estienne, M Eun, L Fachini, P Fatemi, R Fedorisin, J Feng, A Filip, P Finch, E Fine, V Fisyak, Y Gagliardi, CA Gaillard, L Gangadharan, DR Ganti, MS Garcia-Solis, E Ghazikhanian, V Ghosh, P Gorbunov, YN Gordon, A Grebenyuk, O Grosnick, D Grube, B Guertin, SM Guimaraes, KSFF Gupta, A Gupta, N Guryn, W Hallman, TJ Hamed, A Harris, JW He, W Heinz, M Heppelmann, S Hippolyte, B Hirsch, A Hjort, E Hoffman, AM Hoffmann, GW Hofman, DJ Hollis, RS Huang, HZ Humanic, TJ Huo, L Igo, G Iordanova, A Jacobs, P Jacobs, WW Jakl, P Jena, C Jin, F Jones, CL Jones, PG Joseph, J Judd, EG Kabana, S Kajimoto, K Kang, K Kapitan, J Kaplan, M Keane, D Kechechyan, A Kettler, D Khodyrev, VY Kiryluk, J Kisiel, A Klein, SR Knospe, AG Kocoloski, A Koetke, DD Kopytine, M Kotchenda, L Kouchpil, V Kravtsov, P Kravtsov, VI Krueger, K Kuhn, C Kumar, A Kumar, L Kurnadi, P Lamont, MAC Landgraf, JM LaPointe, S Laue, F Lauret, J Lebedev, A Lednicky, R Lee, CH LeVine, MJ Li, C Li, Y Lin, G Lin, X Lindenbaum, SJ Lisa, MA Liu, F Liu, J Liu, L Ljubicic, T Llope, WJ Longacre, RS Lu, Y Ludlam, T Lynn, D Ma, GL Ma, JG Ma, YG Mahapatra, DP Majka, R Mangotra, LK Manweiler, R Margetis, S Markert, C Matis, HS Matulenko, YA McShane, TS Meschanin, A Millane, J Miller, ML Minaev, NG Mioduszewski, S Mischke, A Mitchell, J Mohanty, B Morozov, DA Munhoz, MG Nandi, BK Nattrass, C Nayak, TK Nelson, JM Nepali, C Netrakanti, PK Ng, MJ Nogach, LV Nurushev, SB Odyniec, G Ogawa, A Okada, H Okorokov, V Olson, D Pachr, M Pal, SK Panebratsev, Y Pawlak, T Peitzmann, T Perevoztchikov, V Perkins, C Peryt, W Phatak, SC Planinic, M Pluta, J Poljak, N Porile, N Poskanzer, AM Potekhin, M Potukuchi, BVKS Prindle, D Pruneau, C Pruthi, NK Putschke, J Raniwala, R Raniwala, S Ray, RL Ridiger, A Ritter, HG Roberts, JB Rogachevskiy, OV Romero, JL Rose, A Roy, C Ruan, L Russcher, MJ Rykov, V Sahoo, R Sakrejda, I Sakuma, T Salur, S Sandweiss, J Sarsour, M Schambach, J Scharenberg, RP Schmitz, N Seger, J Selyuzhenkov, I Seyboth, P Shabetai, A Shahaliev, E Shao, M Sharma, M Shi, SS Shi, XH Sichtermann, EP Simon, F Singaraju, RN Skoby, MJ Smirnov, N Snellings, R Sorensen, P Sowinski, J Spinka, HM Srivastava, B Stadnik, A Stanislaus, TDS Staszak, D Strikhanov, M Stringfellow, B Suaide, AAP Suarez, MC Subba, NL Sumbera, M Sun, XM Sun, Y Sun, Z Surrow, B Symons, TJM de Toledo, AS Takahashi, J Tang, AH Tang, Z Tarnowsky, T Thein, D Thomas, JH Tian, J Timmins, AR Timoshenko, S Tokarev, M Tram, VN Trattner, AL Trentalange, S Tribble, RE Tsai, OD Ulery, J Ullrich, T Underwood, DG Buren, GV van der Kolk, N van Leeuwen, M Molen, AMV Varma, R Vasconcelos, GMS Vasilevski, IM Vasiliev, AN Videbaek, F Vigdor, SE Viyogi, YP Vokal, S Voloshin, SA Wada, M Waggoner, WT Wang, F Wang, G Wang, JS Wang, Q Wang, X Wang, XL Wang, Y Webb, JC Westfall, GD Whitten, C Wieman, H Wissink, SW Witt, R Wu, J Wu, Y Xu, N Xu, QH Xu, Y Xu, Z Yepes, P Yoo, IK Yue, Q Zawisza, M Zbroszczyk, H Zhan, W Zhang, H Zhang, S Zhang, WM Zhang, Y Zhang, ZP Zhao, Y Zhong, C Zhou, J Zoulkarneev, R Zoulkarneeva, Y Zuo, JX AF Abelev, B. I. Aggarwal, M. M. Ahammed, Z. Anderson, B. D. Arkhipkin, D. Averichev, G. S. Bai, Y. Balewski, J. Barannikova, O. Barnby, L. S. Baudot, J. Baumgart, S. Beavis, D. R. Bellwied, R. Benedosso, F. Betts, R. R. Bhardwaj, S. Bhasin, A. Bhati, A. K. Bichsel, H. Bielcik, J. Bielcikova, J. Biritz, B. Bland, L. C. Bombara, M. Bonner, B. E. Botje, M. Bouchet, J. Braidot, E. Brandin, A. V. Bueltmann, S. Burton, T. P. Bystersky, M. Cai, X. Z. Caines, H. Sanchez, M. Calderon de la Barca Callner, J. Catu, O. Cebra, D. Cendejas, R. Cervantes, M. C. Chajecki, Z. Chaloupka, P. Chattopadhyay, S. Chen, H. F. Chen, J. H. Chen, J. Y. Cheng, J. Cherney, M. Chikanian, A. Choi, K. E. Christie, W. Chung, S. U. Clarke, R. F. Codrington, M. J. M. Coffin, J. P. Cormier, T. M. Cosentino, M. R. Cramer, J. G. Crawford, H. J. Das, D. Dash, S. Daugherity, M. de Moira, M. M. Dedovich, T. G. DePhillips, M. Derevschikov, A. A. de Souza, R. Derradi Didenko, L. Dictel, T. Djawotho, P. Dogra, S. M. Dong, X. Drachenberg, J. L. Draper, J. E. Du, F. Dunlop, J. C. Mazumdar, M. R. Dutta Edwards, W. R. Efimov, L. G. Elhalhuli, E. Elnimr, M. Emelianov, V. Engelage, J. Eppley, G. Erazmus, B. Estienne, M. Eun, L. Fachini, P. Fatemi, R. Fedorisin, J. Feng, A. Filip, P. Finch, E. Fine, V. Fisyak, Y. Gagliardi, C. A. Gaillard, L. Gangadharan, D. R. Ganti, M. S. Garcia-Solis, E. Ghazikhanian, V. Ghosh, P. Gorbunov, Y. N. Gordon, A. Grebenyuk, O. Grosnick, D. Grube, B. Guertin, S. M. Guimaraes, K. S. F. F. Gupta, A. Gupta, N. Guryn, W. Hallman, T. J. Hamed, A. Harris, J. W. He, W. Heinz, M. Heppelmann, S. Hippolyte, B. Hirsch, A. Hjort, E. Hoffman, A. M. Hoffmann, G. W. Hofman, D. J. Hollis, R. S. Huang, H. Z. Humanic, T. J. Huo, L. Igo, G. Iordanova, A. Jacobs, P. Jacobs, W. W. Jakl, P. Jena, C. Jin, F. Jones, C. L. Jones, P. G. Joseph, J. Judd, E. G. Kabana, S. Kajimoto, K. Kang, K. Kapitan, J. Kaplan, M. Keane, D. Kechechyan, A. Kettler, D. Khodyrev, V. Yu. Kiryluk, J. Kisiel, A. Klein, S. R. Knospe, A. G. Kocoloski, A. Koetke, D. D. Kopytine, M. Kotchenda, L. Kouchpil, V. Kravtsov, P. Kravtsov, V. I. Krueger, K. Kuhn, C. Kumar, A. Kumar, L. Kurnadi, P. Lamont, M. A. C. Landgraf, J. M. LaPointe, S. Laue, F. Lauret, J. Lebedev, A. Lednicky, R. Lee, C.-H. LeVine, M. J. Li, C. Li, Y. Lin, G. Lin, X. Lindenbaum, S. J. Lisa, M. A. Liu, F. Liu, J. Liu, L. Ljubicic, T. Llope, W. J. Longacre, R. S. Lu, Y. Ludlam, T. Lynn, D. Ma, G. L. Ma, J. G. Ma, Y. G. Mahapatra, D. P. Majka, R. Mangotra, L. K. Manweiler, R. Margetis, S. Markert, C. Matis, H. S. Matulenko, Yu. A. McShane, T. S. Meschanin, A. Millane, J. Miller, M. L. Minaev, N. G. Mioduszewski, S. Mischke, A. Mitchell, J. Mohanty, B. Morozov, D. A. Munhoz, M. G. Nandi, B. K. Nattrass, C. Nayak, T. K. Nelson, J. M. Nepali, C. Netrakanti, P. K. Ng, M. J. Nogach, L. V. Nurushev, S. B. Odyniec, G. Ogawa, A. Okada, H. Okorokov, V. Olson, D. Pachr, M. Pal, S. K. Panebratsev, Y. Pawlak, T. Peitzmann, T. Perevoztchikov, V. Perkins, C. Peryt, W. Phatak, S. C. Planinic, M. Pluta, J. Poljak, N. Porile, N. Poskanzer, A. M. Potekhin, M. Potukuchi, B. V. K. S. Prindle, D. Pruneau, C. Pruthi, N. K. Putschke, J. Raniwala, R. Raniwala, S. Ray, R. L. Ridiger, A. Ritter, H. G. Roberts, J. B. Rogachevskiy, O. V. Romero, J. L. Rose, A. Roy, C. Ruan, L. Russcher, M. J. Rykov, V. Sahoo, R. Sakrejda, I. Sakuma, T. Salur, S. Sandweiss, J. Sarsour, M. Schambach, J. Scharenberg, R. P. Schmitz, N. Seger, J. Selyuzhenkov, I. Seyboth, P. Shabetai, A. Shahaliev, E. Shao, M. Sharma, M. Shi, S. S. Shi, X. -H. Sichtermann, E. P. Simon, F. Singaraju, R. N. Skoby, M. J. Smirnov, N. Snellings, R. Sorensen, P. Sowinski, J. Spinka, H. M. Srivastava, B. Stadnik, A. Stanislaus, T. D. S. Staszak, D. Strikhanov, M. Stringfellow, B. Suaide, A. A. P. Suarez, M. C. Subba, N. L. Sumbera, M. Sun, X. M. Sun, Y. Sun, Z. Surrow, B. Symons, T. J. M. de Toledo, A. Szanto Takahashi, J. Tang, A. H. Tang, Z. Tarnowsky, T. Thein, D. Thomas, J. H. Tian, J. Timmins, A. R. Timoshenko, S. Tokarev, M. Tram, V. N. Trattner, A. L. Trentalange, S. Tribble, R. E. Tsai, O. D. Ulery, J. Ullrich, T. Underwood, D. G. Buren, G. Van van der Kolk, N. van Leeuwen, M. Molen, A. M. Vander Varma, R. Vasconcelos, G. M. S. Vasilevski, I. M. Vasiliev, A. N. Videbaek, F. Vigdor, S. E. Viyogi, Y. P. Vokal, S. Voloshin, S. A. Wada, M. Waggoner, W. T. Wang, F. Wang, G. Wang, J. S. Wang, Q. Wang, X. Wang, X. L. Wang, Y. Webb, J. C. Westfall, G. D. Whitten, C., Jr. Wieman, H. Wissink, S. W. Witt, R. Wu, J. Wu, Y. Xu, N. Xu, Q. H. Xu, Y. Xu, Z. Yepes, P. Yoo, I. -K. Yue, Q. Zawisza, M. Zbroszczyk, H. Zhan, W. Zhang, H. Zhang, S. Zhang, W. M. Zhang, Y. Zhang, Z. P. Zhao, Y. Zhong, C. Zhou, J. Zoulkarneev, R. Zoulkarneeva, Y. Zuo, J. X. CA STAR Collaboration TI Beam-energy and system-size dependence of dynamical net charge fluctuations SO PHYSICAL REVIEW C LA English DT Article ID MEAN TRANSVERSE-MOMENTUM; BY-EVENT FLUCTUATIONS; HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; NUCLEAR COLLISIONS; AU COLLISIONS; MULTIPLICITY; SIGNAL; GEV/C AB We present measurements of net charge fluctuations in Au+Au collisions at s(NN)=19.6, 62.4, 130, and 200 GeV, Cu+Cu collisions at s(NN)=62.4 and 200 GeV, and p+p collisions at s=200 GeV using the dynamical net charge fluctuations measure nu(+-,dyn). We observe that the dynamical fluctuations are nonzero at all energies and exhibit a modest dependence on beam energy. A weak system size dependence is also observed. We examine the collision centrality dependence of the net charge fluctuations and find that dynamical net charge fluctuations violate 1/N-ch scaling but display approximate 1/N-part scaling. We also study the azimuthal and rapidity dependence of the net charge correlation strength and observe strong dependence on the azimuthal angular range and pseudorapidity widths integrated to measure the correlation. C1 [Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA. [Barnby, L. S.; Bombara, M.; Burton, T. P.; Elhalhuli, E.; Gaillard, L.; Jones, P. G.; Nelson, J. M.; Timmins, A. R.] Univ Birmingham, Birmingham, W Midlands, England. [Beavis, D. R.; Bland, L. C.; Christie, W.; Chung, S. U.; DePhillips, M.; Didenko, L.; Dictel, T.; Dunlop, J. C.; Fachini, P.; Fine, V.; Fisyak, Y.; Gordon, A.; Guryn, W.; Hallman, T. J.; Lamont, M. A. C.; Landgraf, J. M.; Laue, F.; Lauret, J.; Lebedev, A.; LeVine, M. J.; Longacre, R. S.; Lu, Y.; Ludlam, T.; Lynn, D.; Ogawa, A.; Okada, H.; Perevoztchikov, V.; Potekhin, M.; Ruan, L.; Rykov, V.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Buren, G. Van; Videbaek, F.; Xu, Z.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Sanchez, M. Calderon de la Barca; Cebra, D.; Das, D.; Ma, Y. G.; Romero, J. L.] Univ Calif Davis, Davis, CA 95616 USA. [Biritz, B.; Cendejas, R.; Gangadharan, D. R.; Ghazikhanian, V.; Guertin, S. M.; Huang, H. Z.; Igo, G.; Kurnadi, P.; Staszak, D.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [de Souza, R. Derradi; Takahashi, J.] Univ Estadual Campinas, Sao Paulo, Brazil. [Barannikova, O.; Betts, R. R.; Callner, J.; Iordanova, A.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA. [Cherney, M.; Gorbunov, Y. N.; McShane, T. S.; Seger, J.; Waggoner, W. T.] Creighton Univ, Omaha, NE 68178 USA. [Bielcik, J.; Bielcikova, J.; Bystersky, M.; Jakl, P.; Kouchpil, V.; Sumbera, M.] AS CR, Inst Nucl Phys, Rez 25068, Czech Republic. [Averichev, G. S.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Kechechyan, A.; Rogachevskiy, O. V.; Stadnik, A.; Tokarev, M.; Vokal, S.] Joint Inst Nucl Res Dubna, Lab High Energy, Dubna, Russia. [Arkhipkin, D.; Filip, P.; Zoulkarneev, R.; Zoulkarneeva, Y.] Joint Inst Nucl Res Dubna, Particle Phys Lab, Dubna, Russia. [Dash, S.; Jena, C.; Phatak, S. C.; Viyogi, Y. P.] Inst Phys, Bhubaneswar 751005, Orissa, India. [Minaev, N. G.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India. [He, W.; Jacobs, P.; Selyuzhenkov, I.; Sowinski, J.; Viyogi, Y. P.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA. [Baudot, J.; Coffin, J. P.; Estienne, M.; Hippolyte, B.; Kuhn, C.; Shabetai, A.] Inst Rech Subatom, Strasbourg, France. [Bhasin, A.; Dogra, S. M.; Gupta, A.; Gupta, N.; Meschanin, A.] Univ Jammu, Jammu 180001, India. [Anderson, B. D.; Bouchet, J.; Chen, J. Y.; Joseph, J.; Keane, D.; Kopytine, M.; Nepali, C.; Subba, N. L.] Kent State Univ, Kent, OH 44242 USA. [Fatemi, R.] Univ Kentucky, Lexington, KY 40506 USA. [Sun, Z.; Wang, J. S.; Zhan, W.] Inst Modern Phys, Lanzhou, Peoples R China. [Dogra, S. M.; Edwards, W. R.; Grebenyuk, O.; Hjort, E.; Jacobs, P.; Kiryluk, J.; Klein, S. R.; Matis, H. S.; Odyniec, G.; Olson, D.; Poskanzer, A. M.; Ritter, H. G.; Rose, A.; Sakrejda, I.; Salur, S.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Tram, V. N.; Wieman, H.; Xu, N.; Zhang, Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Balewski, J.; Hoffman, A. M.; Jones, P. G.; Kocoloski, A.; Millane, J.; Miller, M. L.; Sakuma, T.; Surrow, B.] MIT, Cambridge, MA 02139 USA. [Schmitz, N.; Seyboth, P.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Molen, A. M. Vander; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA. [Brandin, A. V.; Emelianov, V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Ridiger, A.; Strikhanov, M.; Timoshenko, S.] Moscow Engn Phys Inst, Moscow 115409, Russia. [Lindenbaum, S. J.] CUNY City Coll, New York, NY 10031 USA. [Bai, Y.; Botje, M.; Braidot, E.; Lindenbaum, S. J.; Mischke, A.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.] NIKHEF, Amsterdam, Netherlands. [Bai, Y.; Botje, M.; Braidot, E.; Lindenbaum, S. J.; Mischke, A.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.] Univ Utrecht, Amsterdam, Netherlands. [Chajecki, Z.; Humanic, T. J.; Kisiel, A.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA. [Bueltmann, S.] Old Dominion Univ, Norfolk, VA 23529 USA. [Aggarwal, M. M.; Bhati, A. K.; Kumar, A.; Kumar, L.; Pruthi, N. K.] Panjab Univ, Chandigarh 160014, India. [Eun, L.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA. [Derevschikov, A. A.; Khodyrev, V. Yu.; Kravtsov, P.; Matulenko, Yu. A.; Meschanin, A.; Minaev, N. G.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia. [Hirsch, A.; Netrakanti, P. K.; Porile, N.; Schambach, J.; Skoby, M. J.; Srivastava, B.; Tarnowsky, T.; Ulery, J.; Wang, F.; Wang, G.] Purdue Univ, W Lafayette, IN 47907 USA. [Choi, K. E.; Grube, B.; Lee, C.-H.; Yoo, I. -K.] Pusan Natl Univ, Pusan 609735, South Korea. [Bhardwaj, S.; Raniwala, R.; Raniwala, S.] Univ Rajasthan, Jaipur 302004, Rajasthan, India. [Bonner, B. E.; Liu, F.; Llope, W. J.; Mitchell, J.; Roberts, J. B.; Yepes, P.; Zhou, J.] Rice Univ, Houston, TX 77251 USA. [de Moira, M. M.; Guimaraes, K. S. F. F.; Munhoz, M. G.; Suaide, A. A. P.; de Toledo, A. Szanto] Univ Sao Paulo, Sao Paulo, Brazil. [Chen, H. F.; Lee, C.-H.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Wu, J.; Wu, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China. [Cai, X. Z.; Jin, F.; Ma, G. L.; Ma, J. G.; Shi, S. S.; Thein, D.; Zhang, H.; Zhang, S.; Zhong, C.; Zuo, J. X.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. [Erazmus, B.; Kabana, S.; Roy, C.] SUBATECH, Nantes, France. [Cervantes, M. C.; Clarke, R. F.; Codrington, M. J. M.; Djawotho, P.; Draper, J. E.; Gagliardi, C. A.; Hamed, A.; Huo, L.; Mioduszewski, S.; Sarsour, M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA. [Daugherity, M.; Hoffmann, G. W.; Kajimoto, K.; Markert, C.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA. [Chen, H. F.; Kechechyan, A.; Li, C.; Wang, F.; Wang, G.; Wang, Q.; Wang, X.; Wang, Y.; Yue, Q.] Tsinghua Univ, Beijing 100084, Peoples R China. [Witt, R.] USN Acad, Annapolis, MD 21402 USA. [Grosnick, D.; Koetke, D. D.; Manweiler, R.; Stanislaus, T. D. S.; Webb, J. C.] Valparaiso Univ, Valparaiso, IN 46383 USA. [Ahammed, Z.; Chattopadhyay, S.; Mazumdar, M. R. Dutta; Gangadharan, D. R.; Mohanty, B.; Nayak, T. K.; Pal, S. K.; Singaraju, R. N.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, India. [Laue, F.; Pawlak, T.; Peryt, W.; Pluta, J.] Warsaw Univ Technol, Warsaw, Poland. [Bichsel, H.; Cramer, J. G.; Kettler, D.; Prindle, D.] Univ Washington, Seattle, WA 98195 USA. [Balewski, J.; Cormier, T. M.; Elnimr, M.; LaPointe, S.; McShane, T. S.; Pruneau, C.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA. [Chen, H. F.; Feng, A.; Liu, F.; Liu, J.; Shi, S. S.; Wu, J.; Wu, Y.] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China. [Baumgart, S.; Catu, O.; Chikanian, A.; Du, F.] Yale Univ, New Haven, CT 06520 USA. [Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia. [Kaplan, M.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. RP Abelev, BI (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Chaloupka, Petr/E-5965-2012; Nattrass, Christine/J-6752-2016; Derradi de Souza, Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; van der Kolk, Naomi/M-9423-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017; Okorokov, Vitaly/C-4800-2017; Ma, Yu-Gang/M-8122-2013; Peitzmann, Thomas/K-2206-2012; Witt, Richard/H-3560-2012; Barnby, Lee/G-2135-2010; Mischke, Andre/D-3614-2011; Voloshin, Sergei/I-4122-2013; Lednicky, Richard/K-4164-2013; Cosentino, Mauro/L-2418-2014; Sumbera, Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Dogra, Sunil /B-5330-2013; Fornazier Guimaraes, Karin Silvia/H-4587-2016; Takahashi, Jun/B-2946-2012; Planinic, Mirko/E-8085-2012 OI Nattrass, Christine/0000-0002-8768-6468; Derradi de Souza, Rafael/0000-0002-2084-7001; Suaide, Alexandre/0000-0003-2847-6556; van der Kolk, Naomi/0000-0002-8670-0408; Okorokov, Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900; Mohanty, Bedangadas/0000-0001-9610-2914; Fisyak, Yuri/0000-0002-3151-8377; Bhasin, Anju/0000-0002-3687-8179; Sorensen, Paul/0000-0001-5056-9391; Thomas, James/0000-0002-6256-4536; van Leeuwen, Marco/0000-0002-5222-4888; Peitzmann, Thomas/0000-0002-7116-899X; Barnby, Lee/0000-0001-7357-9904; Cosentino, Mauro/0000-0002-7880-8611; Sumbera, Michal/0000-0002-0639-7323; Strikhanov, Mikhail/0000-0003-2586-0405; Fornazier Guimaraes, Karin Silvia/0000-0003-0578-9533; Takahashi, Jun/0000-0002-4091-1779; FU RHIC Operations Group; RCF at BNL; NERSC Center at LBNL; Offices of NP and HEP; US DOE Office of Science; US NSF; Sloan Foundation; DFG Excellence Cluster EXC153 of Germany; CNRS/IN2P3; RA; RPL; EMN of France; STFC; EPSRC of the United Kingdom; FAPESP of Brazil,; Russian Ministry of Science and Technology; NNSFC; CAS; MoST; MoE of China; IRP; GA of the Czech Republic; FOM of the Netherlands; DAE; DST; CSIR of the Government of India; Swiss NSF; Polish State Committee for Scientific Research; Slovak Research and Development Agency; Korea Science & Engineering Foundation FX We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL and the resources provided by the Open Science Grid Consortium for their 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 Excellence Cluster EXC153 of Germany, CNRS/IN2P3, RA, RPL, and EMN of France, STFC and EPSRC of the United Kingdom, FAPESP of Brazil, the Russian Ministry of Science and Technology, the NNSFC, CAS, MoST, and MoE of China, IRP and GA of the Czech Republic, FOM of the Netherlands, DAE, DST, and CSIR of the Government of India, Swiss NSF, the Polish State Committee for Scientific Research, Slovak Research and Development Agency, and the Korea Science & Engineering Foundation. NR 57 TC 27 Z9 28 U1 0 U2 11 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 FEB PY 2009 VL 79 IS 2 AR 024906 DI 10.1103/PhysRevC.79.024906 PG 14 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400052 ER PT J AU Andersson, LL Ragnarsson, I Rudolph, D Johansson, EK Torres, DA Andreoiu, C Carpenter, MP Charity, RJ Chiara, CJ Ekman, J Fahlander, C Hoel, C Pechenaya, OL Reviol, W du Rietz, R Sarantites, DG Seweryniak, D Sobotka, LG Zhu, S AF Andersson, L. -L. Ragnarsson, I. Rudolph, D. Johansson, E. K. Torres, D. A. Andreoiu, C. Carpenter, M. P. Charity, R. J. Chiara, C. J. Ekman, J. Fahlander, C. Hoel, C. Pechenaya, O. L. Reviol, W. du Rietz, R. Sarantites, D. G. Seweryniak, D. Sobotka, L. G. Zhu, S. TI Comprehensive gamma-ray spectroscopy of rotational bands in the N=Z+1 nucleus Zn-61 SO PHYSICAL REVIEW C LA English DT Article ID FUSION-EVAPORATION REACTIONS; HIGH-SPIN; CHANNEL-SELECTION; GAMMASPHERE; COLLECTIVITY; TERMINATION; MICROBALL; EMISSION; STATES; SHELL AB The Zn-61(30)31 nucleus has been studied via the combined data of two fusion-evaporation reaction experiments using a Ar-36 beam and a Si-28 target foil. The experimental setups involved the Ge array GAMMASPHERE and neutron and charged particle detectors placed around the target position. The resulting level scheme comprises about 120 excited states connected via some 180 gamma-ray transitions. In total, seven rotational structures were identified up to I similar to 25 or higher and compared with predictions from cranked Nilsson-Strutinsky calculations. C1 [Andersson, L. -L.; Rudolph, D.; Johansson, E. K.; Andreoiu, C.; Ekman, J.; Fahlander, C.; du Rietz, R.] Lund Univ, Dept Phys, S-22100 Lund, Sweden. [Ragnarsson, I.] Lund Inst Technol, Dept Math Phys, S-22100 Lund, Sweden. [Torres, D. A.] Univ Nacl Colombia, Dept Fis, Bogota, Colombia. [Carpenter, M. P.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Charity, R. J.; Chiara, C. J.; Hoel, C.; Reviol, W.; Sarantites, D. G.; Sobotka, L. G.] Washington Univ, Dept Chem, St Louis, MO 63130 USA. [Pechenaya, O. L.] Washington Univ, Dept Phys, St Louis, MO 63130 USA. RP Andersson, LL (reprint author), Lund Univ, Dept Phys, S-22100 Lund, Sweden. RI Rudolph, Dirk/D-4259-2009; Ekman, Jorgen/C-1385-2013; du Rietz, Rickard/I-3794-2013; Carpenter, Michael/E-4287-2015 OI Rudolph, Dirk/0000-0003-1199-3055; du Rietz, Rickard/0000-0002-9884-9058; Carpenter, Michael/0000-0002-3237-5734 FU Swedish Research Council; US Department of Energy; Office of Nuclear Physics [DE-FG05-88ER-40406, DE-AC02-06CH11357] FX We thank the accelerator crew and the GAMMASPHERE support staff at Argonne National Laboratory for their supreme efforts. Our thanks also go to D. P. Balamuth, J. Eberth, A. Galindo- Uribarri, P. A. Hausladen, and Th. Steinhardt for their help and support during the experiments. This work is supported in part by the Swedish Research Council and the US Department of Energy, Office of Nuclear Physics, under Contract Nos. DE-FG05-88ER-40406 (WU) and DE-AC02-06CH11357 (ANL). NR 31 TC 7 Z9 7 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 2 AR 024312 DI 10.1103/PhysRevC.79.024312 PG 13 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400020 ER PT J AU Folden, CM Dragojevic, I Dullmann, CE Eichler, R Garcia, MA Gates, JM Nelson, SL Sudowe, R Gregorich, KE Hoffman, DC Nitsche, H AF Folden, C. M. Dragojevic, I. Duellmann, Ch. E. Eichler, R. Garcia, M. A. Gates, J. M. Nelson, S. L. Sudowe, R. Gregorich, K. E. Hoffman, D. C. Nitsche, H. TI Measurement of the Pb-208(Cr-52,n)(259)Sg excitation function SO PHYSICAL REVIEW C LA English DT Article ID HEAVIEST ELEMENTS; SPONTANEOUS FISSION; NUCLEAR PROPERTIES; HALF-LIVES; DECAY AB The excitation function for the Pb-208(Cr-52,n)(259)Sg reaction has been measured using the Berkeley Gas-filled Separator at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. The maximum cross section of 320(-100)(+110) pb is observed at a center-of-target laboratory-frame energy of 253.0 MeV. In total, 25 decay chains originating from (259)Sg were observed and the measured decay properties are in good agreement with previous reports. In addition, a partial excitation function for the Pb-208(Cr-52,2n)(258)Sg reaction was obtained, and an improved (258)Sg half-life of 2.6(-0.4)(+0.6) ms was calculated by combining all available experimental data. C1 [Folden, C. M.; Dragojevic, I.; Duellmann, Ch. E.; Eichler, R.; Garcia, M. A.; Gates, J. M.; Nelson, S. L.; Sudowe, R.; Gregorich, K. E.; Hoffman, D. C.; Nitsche, H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Folden, C. M.; Dragojevic, I.; Garcia, M. A.; Gates, J. M.; Nelson, S. L.; Hoffman, D. C.; Nitsche, H.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Eichler, R.] Paul Scherrer Inst, CH-5232 Villigen, Switzerland. [Eichler, R.] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland. RP Folden, CM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM Folden@comp.tamu.edu RI Garcia, Mitch/G-2413-2010; Eichler, Robert/G-5130-2011; Folden, Charles/F-1033-2015 OI Folden, Charles/0000-0002-2814-3762 FU United States Department of Energy; US Department of Energy [DE-AC03-76SF00098]; Swiss National Science Foundation [PA002-104962] FX We thank D. Leitner and the staff of the LBNL 88-Inch Cyclotron for developing and delivering the intense, stable beams of 52Cr. The authors wish to express their appreciation to W. J. Swiatecki for many informative discussions. We thank the staff of the target laboratory at the Gesellschaft fur Schwerionenforschung mbH for preparing the 208Pb targets. This work was supported in part by the Director, Office of High Energy and Nuclear Physics, Nuclear Physics Division, United States Department of Energy and the Director, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division, US Department of Energy under contract No. DE-AC03-76SF00098. R.E. acknowledges the financial support of the Swiss National Science Foundation under award PA002-104962. NR 30 TC 14 Z9 14 U1 0 U2 1 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 FEB PY 2009 VL 79 IS 2 AR 027602 DI 10.1103/PhysRevC.79.027602 PG 4 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400073 ER PT J AU Forssen, C Caurier, E Navratil, P AF Forssen, C. Caurier, E. Navratil, P. TI Charge radii and electromagnetic moments of Li and Be isotopes from the ab initio no-core shell model SO PHYSICAL REVIEW C LA English DT Article ID ENERGY-LEVELS; NUCLEI; SHIFT AB Recently, charge radii and ground-state electromagnetic moments of Li and Be isotopes were measured precisely. We have performed large-scale ab initio no-core shell model calculations for these isotopes using high-precision nucleon-nucleon potentials. The isotopic trends of our computed charge radii and quadrupole and magnetic-dipole moments are in good agreement with experimental results with the exception of the Li-11 charge radius. The magnetic moments are in particular well described, whereas the absolute magnitudes of the quadrupole moments are about 10% too small. The small magnitude of the Li-6 quadrupole moment is reproduced, and with the CD-Bonn NN potential, also its correct sign. C1 [Forssen, C.] Chalmers, SE-41296 Gothenburg, Sweden. [Caurier, E.] Univ Strasbourg, Inst Rech Subatom, CNRS, IN2P3, F-67037 Strasbourg 2, France. [Navratil, P.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Forssen, C (reprint author), Chalmers, SE-41296 Gothenburg, Sweden. EM christian.forssen@chalmers.se RI Forssen, Christian/C-6093-2008 OI Forssen, Christian/0000-0003-3458-0480 FU LLNL [DE-AC52-07NA27344]; LDRD [PLS-09-ERD-020]; US DOE/SC/NP [SCW0498]; DOE [DE-FC02-07ER41457]; Stiftelsen Lars HiertasMinne; Stiftelsen Langmanska Kulturfonden FX This research was supported by the Swedish Research Council and the Knut and Alice Wallenberg Foundation. Prepared by LLNL under Contract DE-AC52-07NA27344. This work was supported by the LDRD Contract No. PLS-09-ERD-020, by the US DOE/SC/NP ( Work Proposal No. SCW0498) and by the UNEDF SciDAC Collaboration under DOE Grant No. DE-FC02-07ER41457.C. F. acknowledges financial support from Stiftelsen Lars HiertasMinne and from Stiftelsen Langmanska Kulturfonden. NR 35 TC 38 Z9 38 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 FEB PY 2009 VL 79 IS 2 AR 021303 DI 10.1103/PhysRevC.79.021303 PG 5 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400003 ER PT J AU Fujii, H Fukushima, K Hidaka, Y AF Fujii, Hirotsugu Fukushima, Kenji Hidaka, Yoshimasa TI Initial energy density and gluon distribution from the glasma in heavy-ion collisions SO PHYSICAL REVIEW C LA English DT Article ID WEIZSACKER-WILLIAMS FIELD; NUCLEAR COLLISIONS; TRANSVERSE-MOMENTUM; PA-COLLISIONS; COLORED GLASS; CONDENSATE; QCD; SATURATION; MODEL; SCATTERING AB We estimate the energy density and the gluon distribution associated with the classical fields describing the early-time dynamics of heavy-ion collisions. In the McLerran-Venugopalan model, we first decompose the energy density into the momentum components exactly, with the use of the Wilson line correlators. Then we evolve the energy density with the free-field equation, which is justified by the dominance of the ultraviolet modes near the collision point. We also discuss the improvement that occurs with the inclusion of nonlinear terms into the time evolution. Our numerical results at RHIC energy are fairly consistent with the empirical values. C1 [Fujii, Hirotsugu] Univ Tokyo, Inst Phys, Meguro Ku, Tokyo 1538902, Japan. [Fukushima, Kenji] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan. [Hidaka, Yoshimasa] Brookhaven Natl Lab, RIKEN, Res Ctr, Upton, NY 11973 USA. RP Fujii, H (reprint author), Univ Tokyo, Inst Phys, Meguro Ku, Tokyo 1538902, Japan. OI Fukushima, Kenji/0000-0003-0899-740X FU MEXT [19540273, 19540269, 20740134]; Yukawa International Program for Quark Hadron Sciences (YIPQS); RIKEN BNL Research Center; US Department of Energy [DE-AC02-98CH10886] FX The authors thank Raju Venugopalan for discussions. The work of H.F. is supported in part by Grants-in-Aid (19540273, 19540269) of MEXT. K.F. is supported by Japanese MEXT Grant No. 20740134 and also supported in part by Yukawa International Program for Quark Hadron Sciences (YIPQS). Y.H. is supported in part by the RIKEN BNL Research Center and by the US Department of Energy under Cooperative Research Agreement No. DE-AC02-98CH10886. NR 60 TC 11 Z9 11 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 2 AR 024909 DI 10.1103/PhysRevC.79.024909 PG 12 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400055 ER PT J AU Kamano, H Julia-Diaz, B Lee, TSH Matsuyama, A Sato, T AF Kamano, H. Julia-Diaz, B. Lee, T. -S. H. Matsuyama, A. Sato, T. TI Dynamical coupled-channels study of pi N ->pi pi N reactions SO PHYSICAL REVIEW C LA English DT Article ID INDUCED 2-PI PRODUCTION; PI-N SCATTERING; CHIRAL PERTURBATION-THEORY; NUCLEON RESONANCE REGION; FINAL-STATE INTERACTIONS; PARTIAL-WAVE ANALYSIS; NEAR-THRESHOLD; REACTION PI-N->PI-PI-N; SYMMETRY-BREAKING; MESON PRODUCTION AB As a step toward performing a complete coupled-channels analysis of the world data of pi N,gamma(*)N ->pi N,eta N,pi pi N reactions, the pi N ->pi pi N reactions are investigated starting with the dynamical coupled-channels model developed in Phys. Rev. C 76, 065201 (2007). The channels included are pi N,eta N, and pi pi N which has pi Delta,rho N, and sigma N resonant components. The nonresonant amplitudes are generated from solving a set of coupled-channels equations with the meson-baryon potentials defined by effective Lagrangians. The resonant amplitudes are generated from 16 bare excited nucleon (N(*)) states that are dressed by the nonresonant interactions as constrained by the unitarity condition. The data of total cross sections and pi N and pi pi invariant mass distributions of pi(+)p ->pi(+)pi(+)n,pi(+)pi(0)p and pi(-)p ->pi(+)pi(-)n,pi(-)pi(0)p,pi(0)pi(0)n reactions from threshold to the invariant mass W=2 GeV can be described to a very large extent. We show the importance of the coupled-channels effects and the strong interference among the contributions from the pi Delta,sigma N, and rho N channels. The large interference between the resonant and nonresonant amplitudes is also demonstrated. Possible future developments are discussed. C1 [Kamano, H.; Julia-Diaz, B.; Lee, T. -S. H.; Matsuyama, A.; Sato, T.] Thomas Jefferson Natl Accelerator Facil, EBAC, Newport News, VA 23606 USA. [Julia-Diaz, B.] Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain. [Julia-Diaz, B.] Univ Barcelona, Inst Ciencies Cosmos, E-08028 Barcelona, Spain. [Lee, T. -S. H.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Matsuyama, A.] Shizuoka Univ, Dept Phys, Shizuoka 4228529, Japan. [Sato, T.] Osaka Univ, Dept Phys, Osaka 5600043, Japan. RP Kamano, H (reprint author), Thomas Jefferson Natl Accelerator Facil, EBAC, Newport News, VA 23606 USA. RI Julia-Diaz, Bruno/E-5825-2010 OI Julia-Diaz, Bruno/0000-0002-0145-6734 FU US Department of Energy, Office of Nuclear Physics Division [DE-AC02-06CH11357, DE-AC05-060R23177]; Japan Society for the Promotion of Science [20540270]; MEC (Spain) [FIS2005-03142]; FEDER; European Hadron Physics Project [RII3-CT-2004-506078] FX We would like to thank R. Arndt for recovering the old data of pi N -> pi pi N reactions. The computations were performed at NERSC (LBNL) and the Barcelona Centro Nacional de Supercomputacion (CNS) (Spain). The authors thankfully acknowledge the computer resources, technical expertise, and assistance provided by CNS. This work is supported by the US Department of Energy, Office of Nuclear Physics Division, under Contract No. DE-AC02-06CH11357 and Contract No. DE-AC05-060R23177, under which Jefferson Science Associates operates Jefferson Lab, and by the Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research(c) 20540270. This work is also partially supported by Grant No. FIS2005-03142 from MEC (Spain) and FEDER and European Hadron Physics Project No. RII3-CT-2004-506078. NR 44 TC 43 Z9 43 U1 0 U2 1 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 FEB PY 2009 VL 79 IS 2 AR 025206 DI 10.1103/PhysRevC.79.025206 PG 11 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400061 ER PT J AU Kay, BP Schiffer, JP Freeman, SJ Adachi, T Clark, JA Deibel, CM Fujita, H Fujita, Y Grabmayr, P Hatanaka, K Ishikawa, D Matsubara, H Meada, Y Okamura, H Rehm, KE Sakemi, Y Shimizu, Y Shimoda, H Suda, K Tameshige, Y Tamii, A Wrede, C AF Kay, B. P. Schiffer, J. P. Freeman, S. J. Adachi, T. Clark, J. A. Deibel, C. M. Fujita, H. Fujita, Y. Grabmayr, P. Hatanaka, K. Ishikawa, D. Matsubara, H. Meada, Y. Okamura, H. Rehm, K. E. Sakemi, Y. Shimizu, Y. Shimoda, H. Suda, K. Tameshige, Y. Tamii, A. Wrede, C. TI Nuclear structure relevant to neutrinoless double beta decay: The valence protons in Ge-76 and Se-76 SO PHYSICAL REVIEW C LA English DT Article ID HE-3; OCCUPANCIES; SCATTERING; AS-77 AB The possibility of observing neutrinoless double beta decay offers the opportunity of determining the effective neutrino mass if the nuclear matrix element were known. Theoretical calculations are uncertain, and the occupation of valence orbits by nucleons active in the decay is likely to be important. The occupation of valence proton orbits in the ground states of Ge-76, a candidate for such decay, and Se-76, the corresponding daughter nucleus, is determined by precisely measuring cross sections for proton-removing transfer reactions. As in previous work on neutron occupation, we find that the Fermi surface for protons is much more diffuse than previously thought, and the occupancies of at least three orbits change significantly between the two 0(+) ground states. C1 [Kay, B. P.; Schiffer, J. P.; Rehm, K. E.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Freeman, S. J.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Adachi, T.; Fujita, H.; Hatanaka, K.; Ishikawa, D.; Matsubara, H.; Okamura, H.; Suda, K.; Tameshige, Y.; Tamii, A.] Osaka Univ, Res Ctr Nucl Phys, Osaka 5670047, Japan. [Clark, J. A.; Deibel, C. M.; Wrede, C.] Yale Univ, New Haven, CT 06520 USA. [Fujita, Y.] Osaka Univ, Dept Phys, Osaka 5670043, Japan. [Grabmayr, P.] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany. [Meada, Y.] Miyazaki Univ, Dept Appl Phys, Miyazaki 8892192, Japan. [Sakemi, Y.] Tohoku Univ, Cyclotron Radioisotope Ctr, Sendai, Miyagi 9808578, Japan. [Shimizu, Y.] Univ Tokyo, Ctr Nucl Study, Tokyo 1130033, Japan. [Shimoda, H.] Kyushu Univ, Dept Phys, Fukuoka 8128581, Japan. RP Kay, BP (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RI Freeman, Sean/B-1280-2010; Kay, Benjamin/F-3291-2011; U-ID, Kyushu/C-5291-2016 OI Freeman, Sean/0000-0001-9773-4921; Kay, Benjamin/0000-0002-7438-0208; FU US Department of Energy; Office of Nuclear Physics [DE-FG02-91ER-40609, DE-AC02-06CH11357]; UK Science and Technology Facilities Council; German BMBF FX We are indebted to John Greene for preparing targets for these experiments. This measurement (E292) was performed at RCNP, Osaka University. The authors wish to thank the RCNP operating staff, and the outside participants wish to thank the local staff and administration for their hospitality and assistance. The work was supported by the US Department of Energy, Office of Nuclear Physics, under Contract Nos. DE-FG02-91ER-40609 and DE-AC02-06CH11357, the UK Science and Technology Facilities Council, and the German BMBF. NR 26 TC 79 Z9 79 U1 0 U2 11 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 FEB PY 2009 VL 79 IS 2 AR 021301 DI 10.1103/PhysRevC.79.021301 PG 4 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400001 ER PT J AU Nelson, SL Gregorich, KE Dragojevic, I Dvorak, J Ellison, PA Garcia, MA Gates, JM Stavsetra, L Ali, MN Nitsche, H AF Nelson, S. L. Gregorich, K. E. Dragojevic, I. Dvorak, J. Ellison, P. A. Garcia, M. A. Gates, J. M. Stavsetra, L. Ali, M. N. Nitsche, H. TI Comparison of complementary reactions in the production of Mt SO PHYSICAL REVIEW C LA English DT Article ID DECAY PROPERTIES; ELEMENT 107; ISOTOPES; FUSION; IDENTIFICATION; SEPARATOR; NUCLEAR AB The new reaction (208)Pb((59)Co,n)(266)Mt was studied using the Berkeley Gas-filled Separator at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. A cross section of 7.7(-3.3)(+5.2) pb was measured at a compound nucleus excitation energy of 14.9 MeV. The measured decay properties of (266)Mt and its daughters correspond well with existing data. We compare this experimental result to transactinide compound nucleus formation model predictions, and the previously studied (209)Bi((58)Fe,n)(266)Mt reaction. C1 [Nelson, S. L.; Gregorich, K. E.; Dragojevic, I.; Dvorak, J.; Ellison, P. A.; Garcia, M. A.; Gates, J. M.; Stavsetra, L.; Nitsche, H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Nelson, S. L.; Dragojevic, I.; Ellison, P. A.; Garcia, M. A.; Gates, J. M.; Ali, M. N.; Nitsche, H.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. RP Nelson, SL (reprint author), Lawrence Livermore Natl Lab, POB 808,L-235, Livermore, CA 94551 USA. RI Garcia, Mitch/G-2413-2010; Ali, Mazhar/C-6473-2013 OI Ali, Mazhar/0000-0002-1129-6105 FU Office of High Energy and Nuclear Physics, Nuclear Physics Division of the U. S. Department of Energy [DE-AC02- 05CH11231] FX We would like to thank D. Leitner and the operations staff of the 88-Inch Cyclotron for providing intense, stable beams of 59Co for these experiments. The authors also wish to express their thanks to W. J. Swiatecki for his theoretical predictions and stimulating discussion, and the target laboratory at GSI for the targets used in these studies. This work was supported in part by the Director, Office of High Energy and Nuclear Physics, Nuclear Physics Division of the U. S. Department of Energy, under contract DE- AC02- 05CH11231. NR 39 TC 8 Z9 8 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 2 AR 027605 DI 10.1103/PhysRevC.79.027605 PG 4 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400076 ER PT J AU Oganessian, YT Utyonkov, VK Lobanov, YV Abdullin, FS Polyakov, AN Sagaidak, RN Shirokovsky, IV Tsyganov, YS Voinov, AA Mezentsev, AN Subbotin, VG Sukhov, AM Subotic, K Zagrebaev, VI Dmitriev, SN Henderson, RA Moody, KJ Kenneally, JM Landrum, JH Shaughnessy, DA Stoyer, MA Stoyer, NJ Wilk, PA AF Oganessian, Yu. Ts. Utyonkov, V. K. Lobanov, Yu. V. Abdullin, F. Sh. Polyakov, A. N. Sagaidak, R. N. Shirokovsky, I. V. Tsyganov, Yu. S. Voinov, A. A. Mezentsev, A. N. Subbotin, V. G. Sukhov, A. M. Subotic, K. Zagrebaev, V. I. Dmitriev, S. N. Henderson, R. A. Moody, K. J. Kenneally, J. M. Landrum, J. H. Shaughnessy, D. A. Stoyer, M. A. Stoyer, N. J. Wilk, P. A. TI Attempt to produce element 120 in the Pu-244+Fe-58 reaction SO PHYSICAL REVIEW C LA English DT Article ID SUPERHEAVY NUCLEI; HEAVIEST NUCLEI; TABLES AB An experiment aimed at the synthesis of isotopes of element 120 has been performed using the Pu-244(Fe-58,xn)(302-x)120 reaction. No decay chains consistent with fusion-evaporation reaction products were observed during an irradiation with a beam dose of 7.1x10(18) 330-MeV Fe-58 projectiles. The sensitivity of the experiment corresponds to a cross section of 0.4 pb for the detection of one decay. C1 [Oganessian, Yu. Ts.; Utyonkov, V. K.; Lobanov, Yu. V.; Abdullin, F. Sh.; Polyakov, A. N.; Sagaidak, R. N.; Shirokovsky, I. V.; Tsyganov, Yu. S.; Voinov, A. A.; Mezentsev, A. N.; Subbotin, V. G.; Sukhov, A. M.; Subotic, K.; Zagrebaev, V. I.; Dmitriev, S. N.] Joint Inst Nucl Res, RU-141980 Dubna, Russia. [Henderson, R. A.; Moody, K. J.; Kenneally, J. M.; Landrum, J. H.; Shaughnessy, D. A.; Stoyer, M. A.; Stoyer, N. J.; Wilk, P. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Oganessian, YT (reprint author), Joint Inst Nucl Res, RU-141980 Dubna, Russia. RI Wilk, Philip/B-5954-2008 FU Russian Ministry of Atomic Energy; RFBR [07-02-00029]; US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Laboratory Directed Research and Development Program at LLNL [04-ERD-085] FX We express our gratitude to Drs. G. G. Gulbekian, S. L. Bogomolov, the personnel of the U400 cyclotron, and the associates of the ion-source group for obtaining intense 58Fe beams; to G. V. Buklanov and A. N. Shamanin for their help in preparing the 244Pu target; and to V. I. Krashonkin, A. M. Zubareva, G. N. Ivanov, and V. B. Galinskiy for their help in performing the experiment. The 244Pu target material was provided by the US DOE through ORNL. This work was performed with the support of the Russian Ministry of Atomic Energy and RFBR Grant 07-02-00029. This work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. This work was funded by the Laboratory Directed Research and Development Program at LLNL under Project Tracking Code 04-ERD-085. These studies were performed in the framework of the Russian Federation/US Joint Coordinating Committee for Research on Fundamental Properties of Matter. NR 25 TC 98 Z9 101 U1 2 U2 7 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 FEB PY 2009 VL 79 IS 2 AR 024603 DI 10.1103/PhysRevC.79.024603 PG 4 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400032 ER PT J AU Pang, DY Roussel-Chomaz, P Savajols, H Varner, RL Wolski, R AF Pang, D. Y. Roussel-Chomaz, P. Savajols, H. Varner, R. L. Wolski, R. TI Global optical model potential for A=3 projectiles SO PHYSICAL REVIEW C LA English DT Review ID HE-3 ELASTIC-SCATTERING; 53.4 MEV HELIONS; 29 MEV 3HE; INELASTIC-SCATTERING; POLARIZED TRITONS; FOLDING MODEL; ISOSPIN DEPENDENCE; ENERGY-DEPENDENCE; COMPOSITE-PARTICLES; COLLECTIVE-MODEL AB A global optical model potential (GDP08) for (3)He projectiles has been obtained by simultaneously fitting the elastic scattering data of (3)He from targets of 40 <= A(T)<= 209 at incident energies of 30 <= E(inc)<= 217 MeV. Uncertainties and correlation coefficients between the global potential parameters were obtained by using the bootstrap statistical method. GDP08 was found to satisfactorily account for the elastic scattering of (3)H as well, which makes it a global optical potential for the A=3 nuclei. Optical model calculations using the GDP08 global potential are compared with the experimental angular distributions of differential cross sections for (3)He-nucleus and (3)H-nucleus scattering from different targets of 6 <= A(T)<= 232 at incident energies of 4 <= E(inc)<= 450 MeV. The optical potential for the doubly-magic nucleus (40)Ca, the low-energy correction to the real potential for nuclei with 58 less than or similar to A(T)less than or similar to 120 at E(inc)< 30 MeV, the comparison with double-folding model calculations and the CH89 potential, and the spin-orbit potential parameters are discussed. C1 [Pang, D. Y.; Roussel-Chomaz, P.; Savajols, H.] GANIL, CEA, DSM, CNRS,IN2P3, F-14076 Caen 5, France. [Pang, D. Y.] Peking Univ, Sch Phys, Beijing 100871, Peoples R China. [Pang, D. Y.] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China. [Varner, R. L.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Wolski, R.] Joint Inst Nucl Res Dubna, FLNR, RU-141980 Dubna, Russia. [Wolski, R.] Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland. RP Roussel-Chomaz, P (reprint author), GANIL, CEA, DSM, CNRS,IN2P3, Blvd Henri Becquerel,Boite Postale 55027, F-14076 Caen 5, France. EM patricia.chomaz@ganil.fr RI Danyang, Pang/E-5722-2012 FU US Department of Energy [DE-AC05-00OR22725] FX D. Y. Pang would like to thank his colleagues in Dubna, where this work was initiated, for their warm hospitality. Oak Ridge National Laboratory is managed by UT-Battelle, LLC under Contract DE-AC05-00OR22725 with the US Department of Energy. NR 118 TC 45 Z9 46 U1 1 U2 4 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 FEB PY 2009 VL 79 IS 2 AR 024615 DI 10.1103/PhysRevC.79.024615 PG 21 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400044 ER PT J AU Paris, MW AF Paris, Mark W. TI Dynamical coupled channels calculation of pion and omega meson production SO PHYSICAL REVIEW C LA English DT Review ID DIFFERENTIAL CROSS-SECTIONS; NEUTRAL PIONS; ENERGY-RANGE; RESONANCE REGION; PHOTON ENERGIES; POSITIVE PIONS; POLARIZED PHOTONS; NUCLEON RESONANCE; BACKWARD ANGLES; MULTIPOLE ANALYSIS AB The dynamical coupled-channels approach developed at the Excited Baryon Analysis Center is extended to include the omega N channel to study pi- and omega-meson production induced by scattering pions and photons from the proton. Six intermediate channels, including pi N, eta N, pi Delta, sigma N, rho N, and omega N, are employed to describe unpolarized and polarized data. Bare parameters in an effective hadronic Lagrangian are determined in a fit to the data for pi N ->pi N, gamma N ->pi N, pi(-)p ->omega n, and gamma p ->omega p reactions at center-of-mass energies from threshold to W < 2.0 GeV. The T matrix determined in these fits is used to calculate the photon beam asymmetry for omega-meson production and the omega N ->omega N total cross section and omega N-scattering lengths. The calculated beam asymmetry is in good agreement with the observed in the range of energies near threshold to W less than or similar to 2.0 GeV. C1 [Paris, Mark W.] Thomas Jefferson Natl Accelerator Facil, Excited Baryon Anal Ctr, Newport News, VA 23606 USA. RP Paris, MW (reprint author), George Washington Univ, Data Anal Ctr, Ctr Nucl Studies, 20101 Acad Way, Ashburn, VA 20147 USA. FU US Department of Energy, Office of Nuclear Physics Division [DE-AC02-06CH11357, DE-AC05-060R23177]; Office of Science of the US Department of Energy [DE-AC02-05CH11231] FX The author thanks T. Sato for Born amplitudes, F. Klein and M. Williams for providing data, and T.-S. H. Lee and A. W. Thomas for useful discussions. This work is supported by the US Department of Energy, Office of Nuclear Physics Division, under Contract No. DE-AC02-06CH11357 and Contract No. DE-AC05-060R23177 under which Jefferson Science Associates operates Jefferson Lab. This research used 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 103 TC 11 Z9 11 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 2 AR 025208 DI 10.1103/PhysRevC.79.025208 PG 14 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400063 ER PT J AU Rzaca-Urban, T Sieja, K Urban, W Nowacki, F Durell, JL Smith, AG Ahmad, I AF Rzaca-Urban, T. Sieja, K. Urban, W. Nowacki, F. Durell, J. L. Smith, A. G. Ahmad, I. TI (h(11/2),g(7/2))(9)(-) neutron excitation in Sr-92,Sr-94,Sr-96 SO PHYSICAL REVIEW C LA English DT Article ID SPONTANEOUS FISSION; HIGH-SPIN; A-SIMILAR-TO-100 REGION; ANGULAR-CORRELATIONS; GAMMA-RAYS; DEFORMATION; NUCLEI; ARRAYS; RICH AB Medium-spin structure of neutron rich nuclei Sr-92, Sr-94, and Sr-96 have been studied in spontaneous fission of Cm-248. New spin and parity assignments done in this work differ significantly from those reported in other works. The 9(-) excitations, involving the nu(g(7/2)h(11/2))(9)(-) maximum aligned configuration, were proposed in the three nuclei at 4930.2 keV, 4858.6 keV, and 3523.9 keV, respectively. Shell-model calculations, with the Ni-78 core, support the proposed nature of the 9(-) excitations. The new data allow testing the single-particle energies in the region of Ni-78, and in particular, the position of the nu h(11/2) orbital, which was not uniquely determined to date. C1 [Rzaca-Urban, T.; Urban, W.] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland. [Sieja, K.] GSI Darmstadt, Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany. [Sieja, K.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany. [Urban, W.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France. [Nowacki, F.] Inst Pluridisciplinaire Hubert Curien, F-67037 Strasbourg, France. [Durell, J. L.; Smith, A. G.] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England. [Ahmad, I.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Rzaca-Urban, T (reprint author), Univ Warsaw, Fac Phys, Ul Hoza 69, PL-00681 Warsaw, Poland. FU Polish MNiSW [N N202 007334] FX This work was partly supported by the Polish MNiSW Grant Nr. N N202 007334. The authors are indebted for the use of 248Cm, to the Office of Basic Energy Sciences, Department of Energy, through the transplutonium element production facilities at the Oak Ridge National Laboratory. NR 28 TC 21 Z9 21 U1 0 U2 2 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 FEB PY 2009 VL 79 IS 2 AR 024319 DI 10.1103/PhysRevC.79.024319 PG 10 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400027 ER PT J AU Sheets, SA Agvaanluvsan, U Becker, JA Becvar, F Bredeweg, TA Haight, RC Jandel, M Krticka, M Mitchell, GE O'Donnell, JM Parker, W Reifarth, R Rundberg, RS Sharapov, EI Ullmann, JL Vieira, DJ Wilhelmy, JB Wouters, JM Wu, CY AF Sheets, S. A. Agvaanluvsan, U. Becker, J. A. Becvar, F. Bredeweg, T. A. Haight, R. C. Jandel, M. Krticka, M. Mitchell, G. E. O'Donnell, J. M. Parker, W. Reifarth, R. Rundberg, R. S. Sharapov, E. I. Ullmann, J. L. Vieira, D. J. Wilhelmy, J. B. Wouters, J. M. Wu, C. Y. TI Test of the statistical model in Mo-96 with the BaF2 gamma calorimeter DANCE array SO PHYSICAL REVIEW C LA English DT Article ID NEUTRON-CAPTURE; TRANSITIONS; RESONANCES; DETECTOR; WIDTHS AB The gamma-ray cascades following the Mo-95(n,gamma)Mo-96 reaction were studied with the gamma calorimeter DANCE (Detector for Advanced Neutron Capture Experiments) consisting of 160 BaF2 scintillation detectors at the Los Alamos Neutron Science Center. The gamma-ray energy spectra for different multiplicities were measured for s- and p-wave resonances below 2 keV. The shapes of these spectra were found to be in very good agreement with simulations using the DICEBOX statistical model code. The relevant model parameters used for the level density and photon strength functions were identical with those that provided the best fit of the data from a recent measurement of the thermal Mo-95(n,gamma)Mo-96 reaction with the two-step-cascade method. The reported results strongly suggest that the extreme statistical model works very well in the mass region near A=100. C1 [Sheets, S. A.; Mitchell, G. E.] N Carolina State Univ, Raleigh, NC 27695 USA. [Sheets, S. A.; Mitchell, G. E.] Triangle Univ Nucl Lab, Durham, NC 27708 USA. [Agvaanluvsan, U.; Becker, J. A.; Parker, W.; Wu, C. Y.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Becvar, F.; Krticka, M.] Charles Univ Prague, CZ-18000 Prague 8, Czech Republic. [Bredeweg, T. A.; Haight, R. C.; Jandel, M.; O'Donnell, J. M.; Reifarth, R.; Rundberg, R. S.; Ullmann, J. L.; Vieira, D. J.; Wilhelmy, J. B.; Wouters, J. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Sharapov, E. I.] Joint Inst Nucl Res, RU-141980 Dubna, Russia. RP Sheets, SA (reprint author), N Carolina State Univ, Raleigh, NC 27695 USA. RI Becvar, Frantisek/D-3824-2012 FU US Department of Energy Grant [DE-FG52-06NA26194, DE-FG0297-ER41042]; US Department of Energy by the University of California, Lawrence Livermore National Laboratory and Los Alamos National Laboratory [W-7405-ENG-48, W-7405-ENG-36]; DOE [DE-AC52-06NA25396]; Ministry of Education of the Czech Republic [MSM 0021620859, INGO LA08015] FX This work was supported in part by the US Department of Energy Grant Nos. DE-FG52-06NA26194and DE-FG0297-ER41042 and was performed under the auspices of the US Department of Energy by the University of California, Lawrence Livermore National Laboratory and Los Alamos National Laboratory under Contract Nos. W-7405-ENG-48 and W-7405-ENG-36, respectively. This work has benefited from the use of the LANSCE accelerator facility, supported under DOE Contract No. DE-AC52-06NA25396. It was also supported by the research plans MSM 0021620859 and INGO LA08015 of the Ministry of Education of the Czech Republic. NR 29 TC 20 Z9 20 U1 2 U2 16 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 FEB PY 2009 VL 79 IS 2 AR 024301 DI 10.1103/PhysRevC.79.024301 PG 9 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400009 ER PT J AU Suzuki, N Sato, T Lee, TSH AF Suzuki, N. Sato, T. Lee, T. -S. H. TI Extraction of resonances from meson-nucleon reactions SO PHYSICAL REVIEW C LA English DT Article ID S-MATRIX; PARTICLE PHYSICS; TIME-DELAY; PI-PI; SCATTERING; POLES; SYSTEMS; REGION AB We present a pedagogical study of the commonly employed speed-plot (SP) and time-delay (TD) methods for extracting the resonance parameters from the data of two-particle coupled-channels reactions. Within several exactly solvable models, it is found that these two methods find poles on different Riemann sheets and are not always valid. We then develop an analytic continuation method for extracting nucleon resonances within a dynamical coupled-channel formulation of pi N and gamma N reactions. The main focus of this paper is on resolving the complications from the coupling with the unstable pi Delta, rho N, and sigma N channels, which decay into pi pi N states. By using the results from the considered exactly solvable models, explicit numerical procedures are presented and verified. As a first application of the developed analytic continuation method, we present the nucleon resonances in some partial waves extracted within a recently developed coupled-channels model of pi N reactions. The results from this realistic pi N model, which includes pi N, eta N, pi Delta, rho N, and sigma N channels, also show that the simple pole parametrization of the resonant propagator using the poles extracted from SP and TD methods works poorly. C1 [Suzuki, N.; Sato, T.; Lee, T. -S. H.] Thomas Jefferson Natl Accelerator Facil, EBAC, Newport News, VA 23606 USA. [Suzuki, N.; Sato, T.] Osaka Univ, Dept Phys, Osaka 5600043, Japan. [Lee, T. -S. H.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RP Suzuki, N (reprint author), Thomas Jefferson Natl Accelerator Facil, EBAC, Newport News, VA 23606 USA. FU Japan Society for the Promotion of Science [20540270]; US Department of Energy, Office of Nuclear Physics Division [DE-AC02-06CH11357, DE-AC05-060R23177] FX This work is supported by the Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research(C) 20540270, and by the US Department of Energy, Office of Nuclear Physics Division, under Contract No. DE-AC02-06CH11357 and Contract No. DE-AC05-060R23177, under which Jefferson Science Associates operates Jefferson Lab. NR 38 TC 44 Z9 45 U1 0 U2 1 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 FEB PY 2009 VL 79 IS 2 AR 025205 DI 10.1103/PhysRevC.79.025205 PG 16 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400060 ER PT J AU Watanabe, H Lane, GJ Dracoulis, GD Kibedi, T Byrne, AP Nieminen, P Hughes, RO Kondev, FG Carpenter, MP Janssens, RVF Lauritsen, T Seweryniak, D Zhu, S Chowdhury, P Moon, CB AF Watanabe, H. Lane, G. J. Dracoulis, G. D. Kibedi, T. Byrne, A. P. Nieminen, P. Hughes, R. O. Kondev, F. G. Carpenter, M. P. Janssens, R. V. F. Lauritsen, T. Seweryniak, D. Zhu, S. Chowdhury, P. Moon, C. -B. TI Decay properties of high-spin isomers and other structures in Sb-121 and Sb-123 SO PHYSICAL REVIEW C LA English DT Article ID HEAVY-ION REACTIONS; ODD-MASS; TRANSITION-PROBABILITIES; QUADRUPOLE-MOMENTS; ROTATIONAL BANDS; LEVEL STRUCTURE; INTRUDER BANDS; YRAST ISOMERS; ENERGY-LEVELS; K-ISOMERS AB High-spin states populated in the decay of microsecond isomers in the transitional nuclei Sb-121 and Sb-123 have been investigated in detail in several experiments using gamma-ray and electron spectroscopy. The nuclei were formed using multinucleon transfer and fusion-fission reactions with Xe-136 beams and also using the Sn-120(Li-7,alpha 2n)Sb-121 and Sn-122(Li-7,alpha 2n)Sb-123 incomplete-fusion reactions. Isomeric half-lives ranging from several nanoseconds to a few hundred microseconds were determined by means of conventional decay curve analyses, whereas very short-lived isomers (T(1/2 similar to)1 ns) were identified using the generalized centroid-shift method. A number of new transitions were observed, including a branch through spherical states from the 19/2(+) member of the 9/2(+) deformed band in Sb-121, in competition with the main decay path through the rotational band. This is attributed to mixing between the 19/2(+) band member and a 19/2(+) spherical state. Both levels are predicted to coincide approximately in energy in Sb-121. The fact that a 25/2(+) isomer occurs for A=121 and the lighter isotopes, while a 23/2(+) isomer is observed for A=123-131 is explained through a multistate mixing calculation, taking into account the gradual shift of the 2d(5/2) and 1g(7/2) proton orbitals and the change in proton-neutron effective interactions from an attractive particle-particle type in the lower part of the shell to a repulsive particle-hole type with increasing the neutron number toward the N=82 shell closure. The observed enhancement of the B(E2;19/2(-)-> 15/2(-)) values in Sb-121 and Sb-123 over the B(E2;7(-)-> 5(-)) values in the corresponding Sn cores is discussed in terms of configuration mixing between spherical and deformed states. C1 [Watanabe, H.; Lane, G. J.; Dracoulis, G. D.; Kibedi, T.; Byrne, A. P.; Nieminen, P.; Hughes, R. O.] Australian Natl Univ, Dept Nucl Phys, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia. [Byrne, A. P.] Australian Natl Univ, Dept Phys, The Faculties, Canberra, ACT 0200, Australia. [Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA. [Carpenter, M. P.; Janssens, R. V. F.; Lauritsen, T.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Moon, C. -B.] Hoseo Univ, Dept Display Engn, Chungnam 336795, South Korea. [Chowdhury, P.] Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA. RP Watanabe, H (reprint author), RIKEN, Nucl Phys Res Div, Nishina Ctr, 2-1 Hirosawa, Wako, Saitama 3510198, Japan. EM hiroshi@ribf.riken.jp RI Kibedi, Tibor/E-8282-2010; Lane, Gregory/A-7570-2011; Carpenter, Michael/E-4287-2015 OI Kibedi, Tibor/0000-0002-9205-7500; Lane, Gregory/0000-0003-2244-182X; Carpenter, Michael/0000-0002-3237-5734 FU ANSTO [02/03-H-05]; Australian Research Council Discovery [DP0343027, DP0345844]; US Department of Energy; Office of Nuclear Physics [DE-AC02-06CH11257] FX We are indebted to the staff members of the Argonne and ANU facilities for providing the beams. H. W. thanks Professor K. Ogawa for valuable discussion. This work was supported by the ANSTO program for Access to Major Research Facilities, Grant No. 02/03-H-05, the Australian Research Council Discovery projects DP0343027 and DP0345844, and the US Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11257. NR 59 TC 8 Z9 8 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 2 AR 024306 DI 10.1103/PhysRevC.79.024306 PG 15 WC Physics, Nuclear SC Physics GA 413TW UT WOS:000263816400014 ER PT J AU Aaltonen, T Adelman, J Akimoto, T Albrow, MG Gonzalez, BA Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Azzurri, P Badgett, W Barbaro-Galtieri, A Barnes, VE Barnett, BA Bartsch, V Bauer, G Beauchemin, PH Bedeschi, F Beecher, D Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Beringer, J Bhatti, A Binkley, M Bisello, D Bizjak, I Blair, RE Blocker, C Blumenfeld, B Bocci, A Bodek, A Boisvert, V Bolla, G Bortoletto, D Boudreau, J Boveia, A Brau, B Bridgeman, A Brigliadori, L Bromberg, C Brubaker, E Budagov, J Budd, HS Budd, S Burke, S Burkett, K Busetto, G Bussey, P Buzatu, A Byrum, KL Cabrera, S Calancha, C Campanelli, M Campbell, M Canelli, F Canepa, A 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 Chang, SH Chen, YC Chertok, M Chiarelli, G Chlachidze, G Chlebana, F Cho, K Chokheli, D Chou, JP Choudalakis, G Chuang, SH Chung, K Chung, WH Chung, YS Chwalek, T Ciobanu, CI Ciocci, MA Clark, A Clark, D Compostella, G Convery, ME Conway, J Cordelli, M Cortiana, G Cox, CA Cox, DJ Crescioli, F Almenar, CC Cuevas, J Culbertson, R Cully, JC Dagenhart, D Datta, M Davies, T de Barbaro, P De Cecco, S Deisher, A De Lorenzo, G Dell'Orso, M Deluca, C Demortier, L Deng, J Deninno, M Derwent, PF di Giovanni, GP Dionisi, C Di Ruzza, B Dittmann, JR D'Onofrio, M Donati, S Dong, P Donini, J Dorigo, T Dube, S Efron, J Elagin, A Erbacher, R Errede, D Errede, S Eusebi, R Fang, HC Farrington, S Fedorko, WT Feild, RG Feindt, M Fernandez, JP Ferrazza, C Field, R Flanagan, G Forrest, R Frank, MJ Franklin, M Freeman, JC Furic, I Gallinaro, M Galyardt, J Garberson, F Garcia, JE Garfinkel, AF Genser, K Gerberich, H Gerdes, D Gessler, A Giagu, S Giakoumopoulou, V Giannetti, P Gibson, K Gimmell, JL Ginsburg, CM Giokaris, N Giordani, M Giromini, P Giunta, M Giurgiu, G Glagolev, V Glenzinski, D Gold, M Goldschmidt, N Golossanov, A Gomez, G Gomez-Ceballos, G Goncharov, M Gonzalez, O Gorelov, I Goshaw, AT Goulianos, K Gresele, A Grinstein, S Grosso-Pilcher, C Group, RC Grundler, U da Costa, JG Gunay-Unalan, Z Haber, C Hahn, K Hahn, SR Halkiadakis, E Han, BY Han, JY Happacher, F Hara, K Hare, D Hare, M Harper, S Harr, RF Harris, RM Hartz, M Hatakeyama, K Hays, C Heck, M Heijboer, A Heinrich, J Henderson, C Herndon, M Heuser, J Hewamanage, S Hidas, D Hill, CS Hirschbuehl, D Hocker, A Hou, S Houlden, M Hsu, SC Huffman, BT Hughes, RE Husemann, U Hussein, M Husemann, U Huston, J Incandela, J Introzzi, G Iori, M Ivanov, A James, E Jayatilaka, B Jeon, EJ Jha, MK Jindariani, S Johnson, W Jones, M Joo, KK Jun, SY Jung, JE Junk, TR Kamon, T Kar, D Karchin, PE Kato, Y Kephart, R Keung, J Khotilovich, V Kilminster, B Kim, DH Kim, HS Kim, HW Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kimura, N Kirsch, L Klimenko, S Knuteson, B Ko, BR Kondo, K Kong, DJ Konigsberg, J Korytov, A Kotwal, AV Kreps, M Kroll, J Krop, D Krumnack, N Kruse, M Krutelyov, V Kubo, T Kuhr, T Kulkarni, NP Kurata, M Kusakabe, Y Kwang, S Laasanen, AT Lami, S Lammel, S Lancaster, M Lander, RL Lannon, K Lath, A Latino, G Lazzizzera, I LeCompte, T Lee, E Lee, HS Lee, SW Leone, S Lewis, JD Lin, CS Linacre, J Lindgren, M Lipeles, E Lister, A Litvintsev, DO Liu, C Liu, T Lockyer, NS Loginov, A Loreti, M Lovas, L Lucchesi, D Luci, C Lueck, J Lujan, P Lukens, P Lungu, G Lyons, L Lys, J Lysak, R MacQueen, D Madrak, R Maeshima, K Makhoul, K Maki, T Maksimovic, P Malde, S Malik, S Manca, G Manousakis-Katsikakis, A Margaroli, F Marino, C Marino, CP Martin, A Martin, V Martinez, M Martinez-Ballarin, R Maruyama, T Mastrandrea, P Masubuchi, T Mathis, M Mattson, ME Mazzanti, P McFarland, KS McIntyre, P McNulty, R Mehta, A Mehtala, P Menzione, A Merkel, P Mesropian, C 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M Tsai, SY Tu, Y Turini, N Ukegawa, F Vallecorsa, S van Remortel, N Varganov, A Vataga, E Vazquez, F Velev, G Vellidis, C Veszpremi, V Vidal, M Vidal, R Vila, I Vilar, R Vine, T Vogel, M Volobouev, I Volpi, G Wagner, P Wagner, RG Wagner, RL Wagner, W Wagner-Kuhr, J Wakisaka, T Wallny, R Wang, SM Warburton, A Waters, D Weinberger, M Weinelt, J Wester, WC Whitehouse, B Whiteson, D Wicklund, AB Wicklund, E Wilbur, S Williams, G Williams, HH Wilson, P Winer, BL Wittich, P Wolbers, S Wolfe, C Wright, T Wu, X Wurthwein, F Wynne, SM Xie, S Yagil, A Yamamoto, K Yamaoka, J Yang, UK Yang, YC Yao, WM Yeh, GP Yoh, J Yorita, K Yoshida, T Yu, GB Yu, I Yu, SS Yun, JC Zanello, L Zanetti, A Zhang, X Zheng, Y Zucchelli, S AF Aaltonen, T. Adelman, J. Akimoto, T. Albrow, M. G. Alvarez Gonzalez, B. Amerio, S. Amidei, D. Anastassov, A. Annovi, A. Antos, J. Apollinari, G. Apresyan, A. Arisawa, T. Artikov, A. Ashmanskas, W. Attal, A. Aurisano, A. Azfar, F. Azzurri, P. Badgett, W. Barbaro-Galtieri, A. Barnes, V. E. Barnett, B. A. Bartsch, V. Bauer, G. Beauchemin, P. -H. Bedeschi, F. Beecher, D. Behari, S. Bellettini, G. Bellinger, J. Benjamin, D. Beretvas, A. Beringer, J. Bhatti, A. Binkley, M. Bisello, D. Bizjak, I. Blair, R. E. Blocker, C. Blumenfeld, B. Bocci, A. Bodek, A. Boisvert, V. Bolla, G. Bortoletto, D. Boudreau, J. Boveia, A. Brau, B. Bridgeman, A. Brigliadori, L. Bromberg, C. Brubaker, E. Budagov, J. Budd, H. S. Budd, S. Burke, S. Burkett, K. Busetto, G. Bussey, P. Buzatu, A. Byrum, K. L. Cabrera, S. Calancha, C. Campanelli, M. Campbell, M. Canelli, F. Canepa, A. 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. 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Garberson, F. Garcia, J. E. Garfinkel, A. F. Genser, K. Gerberich, H. Gerdes, D. Gessler, A. Giagu, S. Giakoumopoulou, V. Giannetti, P. Gibson, K. Gimmell, J. L. Ginsburg, C. M. Giokaris, N. Giordani, M. Giromini, P. Giunta, M. Giurgiu, G. Glagolev, V. Glenzinski, D. Gold, M. Goldschmidt, N. Golossanov, A. Gomez, G. Gomez-Ceballos, G. Goncharov, M. Gonzalez, O. Gorelov, I. Goshaw, A. T. Goulianos, K. Gresele, A. Grinstein, S. Grosso-Pilcher, C. Group, R. C. Grundler, U. da Costa, J. Guimaraes Gunay-Unalan, Z. Haber, C. Hahn, K. Hahn, S. R. Halkiadakis, E. Han, B. -Y. Han, J. Y. Happacher, F. Hara, K. Hare, D. Hare, M. Harper, S. Harr, R. F. Harris, R. M. Hartz, M. Hatakeyama, K. Hays, C. Heck, M. Heijboer, A. Heinrich, J. Henderson, C. Herndon, M. Heuser, J. Hewamanage, S. Hidas, D. Hill, C. S. Hirschbuehl, D. Hocker, A. Hou, S. Houlden, M. Hsu, S. -C. Huffman, B. T. Hughes, R. E. Husemann, U. Hussein, M. Husemann, U. Huston, J. Incandela, J. Introzzi, G. Iori, M. Ivanov, A. James, E. 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Pashapour, S. Patrick, J. Pauletta, G. Paulini, M. Paus, C. Peiffer, T. Pellett, D. E. Penzo, A. Phillips, T. J. Piacentino, G. Pianori, E. Pinera, L. Pitts, K. Plager, C. Pondrom, L. Poukhov, O. Pounder, N. Prakoshyn, F. Pronko, A. Proudfoot, J. Ptohos, F. Pueschel, E. Punzi, G. Pursley, J. Rademacker, J. Rahaman, A. Ramakrishnan, V. Ranjan, N. Redondo, I. Renton, P. Renz, M. Rescigno, M. Richter, S. Rimondi, F. Ristori, L. Robson, A. Rodrigo, T. Rodriguez, T. Rogers, E. Rolli, S. Roser, R. Rossi, M. Rossin, R. Roy, P. Ruiz, A. Russ, J. Rusu, V. Safonov, A. Sakumoto, W. K. Salto, O. Santi, L. Sarkar, S. Sartori, L. Sato, K. Savoy-Navarro, A. Schlabach, P. Schmidt, A. Schmidt, E. E. Schmidt, M. A. Schmidt, M. P. Schmitt, M. Schwarz, T. Scodellaro, L. Scribano, A. Scuri, F. Sedov, A. Seidel, S. Seiya, Y. Semenov, A. Sexton-Kennedy, L. Sforza, F. Sfyrla, A. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shiraishi, S. Shochet, M. Shon, Y. Shreyber, I. Sidoti, A. Sinervo, P. Sisakyan, A. Slaughter, A. J. Slaunwhite, J. Sliwa, K. Smith, J. R. Snider, F. D. Snihur, R. Soha, A. Somalwar, S. Sorin, V. Spalding, J. Spreitzer, T. Squillacioti, P. Stanitzki, M. Denis, R. St. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Strycker, G. L. Stuart, D. Suh, J. S. Sukhanov, A. Suslov, I. Suzuki, T. Taffard, A. Takashima, R. Takeuchi, Y. Tanaka, R. Tecchio, M. Teng, P. K. Terashi, K. Tesarek, R. J. Thom, J. Thompson, A. S. Thompson, G. A. Thomson, E. Tipton, P. Ttito-Guzman, P. Tkaczyk, S. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Tourneur, S. Trovato, M. Tsai, S. -Y. Tu, Y. Turini, N. Ukegawa, F. Vallecorsa, S. van Remortel, N. Varganov, A. Vataga, E. Vazquez, F. Velev, G. Vellidis, C. Veszpremi, V. Vidal, M. Vidal, R. Vila, I. Vilar, R. Vine, T. Vogel, M. Volobouev, I. Volpi, G. Wagner, P. Wagner, R. G. Wagner, R. L. Wagner, W. Wagner-Kuhr, J. Wakisaka, T. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Weinberger, M. Weinelt, J. Wester, W. C., III Whitehouse, B. Whiteson, D. Wicklund, A. B. Wicklund, E. Wilbur, S. Williams, G. Williams, H. H. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, C. Wright, T. Wu, X. Wuerthwein, F. Wynne, S. M. Xie, S. Yagil, A. Yamamoto, K. Yamaoka, J. Yang, U. K. Yang, Y. C. Yao, W. M. Yeh, G. P. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanello, L. Zanetti, A. Zhang, X. Zheng, Y. Zucchelli, S. CA CDF Collaboration TI First measurement of the ratio of branching fractions B(Lambda(0)(b) -> Lambda(+)(c) mu(-) (nu)over-bar(mu))/B(Lambda(0)(b) -> Lambda(+)(c) pi(-)) SO PHYSICAL REVIEW D LA English DT Article ID ROOT S=1.8 TEV; P(P)OVER-BAR COLLISIONS; SEMILEPTONIC DECAY; CROSS-SECTION; QUARK-MODEL; DETECTOR; LAMBDA(C)(+); BARYONS; PHYSICS; ORDER AB This article presents the first measurement of the ratio of branching fractions B(Lambda(0)(b) -> Lambda(+)(c) mu(-) (nu) over bar (mu))/B(Lambda(0)(b) -> Lambda(+)(c) pi(-)). Measurements in two control samples using the same technique B((B) over bar (0) -> D+ mu(-) (nu) over bar (mu))/B((B) over bar (0) -> D+ pi(-)) and B((B) over bar (0) -> D*(2010)(+) mu(-) (nu) over bar (mu))/B((B) over bar (0) -> D*(2010)(+) pi(-)) are also reported. The analysis uses data from an integrated luminosity of approximately 172 pb(-1) of p (p) over bar collisions at root s = 1: 96 TeV, collected with the CDF II detector at the Fermilab Tevatron. The relative branching fractions are measured to be B(Lambda(0)(b) -> Lambda(+)(c) mu(-) (nu) over bar (mu))/B(Lambda(0)(b) -> Lambda(+)(c) pi(-)) = 16.6 +/- 3.0(stat) +/- 1.0(syst) (+2.6)(-3.4) (PDG) +/- 0.3(EBR), B((B) over bar (0) -> D+ mu(-) (nu) over bar (mu))/B((B) over bar (0) -> D+ pi(-)) = 9.9 +/- 1.0(stat) +/- 0.6(syst) +/- 0.4(PDG) +/- 0.5(EBR), and B((B) over bar (0)-> D*(2010)(+) mu(-) (nu) over bar (mu))/B((B) over bar (0) -> D*(2010)(+) pi(-)) = 16.5 +/- 2.3(stat) +/- 0.6(syst) +/- 0.5(PDG) +/- 0.8(EBR). The uncertainties are from statistics (stat), internal systematics (syst), world averages of measurements published by the Particle Data Group or subsidiary measurements in this analysis (PDG), and unmeasured branching fractions estimated from theory (EBR), respectively. This article also presents measurements of the branching fractions of four new Lambda(0)(b) semileptonic decays: Lambda(0)(b) -> Lambda(c)(2595)(+) mu(-) (nu) over bar (mu), Lambda(0)(b) -> Lambda(c)(2625)(+) mu(-) (nu) over bar (mu), Lambda(0)(b) -> Sigma(c)(2425)(0) pi(+) mu(-) (nu) over bar (mu) , and Lambda(0)(b) -> Sigma(c)(2455)(++) pi(-) mu(-) (nu) over bar (mu), relative to the branching fraction of the Lambda(0)(b) -> Lambda(+)(c) mu(-) (nu) over bar (mu) decay. Finally, the transverse-momentum distribution of Lambda(0)(b) baryons produced in p (p) over bar collisions is measured and found to be significantly different from that of (B) over bar (0) mesons, which results in a modification in the production crosssection ratio sigma(Lambda b0)/sigma((B) over bar0) with respect to the CDF I measurement. C1 [Bussey, P.; Chen, Y. C.; Hou, S.; Mitra, A.; Teng, P. K.; Tsai, S. -Y.; Wang, S. M.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan. [Blair, R. E.; Byrum, K. L.; LeCompte, T.; Nodulman, L.; Proudfoot, J.; Wagner, R. G.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA. [Giakoumopoulou, V.; Giokaris, N.; Manousakis-Katsikakis, A.; Vellidis, C.] Univ Athens, GR-15771 Athens, Greece. [Attal, A.; Cavalli-Sforza, M.; De Lorenzo, G.; Deluca, C.; D'Onofrio, M.; Martinez, M.; Salto, O.] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain. [Dittmann, J. R.; Frank, M. 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RI Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan, zeynep/C-6660-2015; Lazzizzera, Ignazio/E-9678-2015; Cabrera Urban, Susana/H-1376-2015; Garcia, Jose /H-6339-2015; ciocci, maria agnese /I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Introzzi, Gianluca/K-2497-2015; Muelmenstaedt, Johannes/K-2432-2015; Gorelov, Igor/J-9010-2015; Xie, Si/O-6830-2016; Canelli, Florencia/O-9693-2016; Ruiz, Alberto/E-4473-2011; Lysak, Roman/H-2995-2014; Moon, Chang-Seong/J-3619-2014; Scodellaro, Luca/K-9091-2014; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; manca, giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Punzi, Giovanni/J-4947-2012; Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014 OI Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611; Lazzizzera, Ignazio/0000-0001-5092-7531; ciocci, maria agnese /0000-0003-0002-5462; Introzzi, Gianluca/0000-0002-1314-2580; Muelmenstaedt, Johannes/0000-0003-1105-6678; Gorelov, Igor/0000-0001-5570-0133; Xie, Si/0000-0003-2509-5731; Canelli, Florencia/0000-0001-6361-2117; Ruiz, Alberto/0000-0002-3639-0368; Moon, Chang-Seong/0000-0001-8229-7829; Scodellaro, Luca/0000-0002-4974-8330; Punzi, Giovanni/0000-0002-8346-9052; Annovi, Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; NR 62 TC 15 Z9 15 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB PY 2009 VL 79 IS 3 AR 032001 DI 10.1103/PhysRevD.79.032001 PG 36 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600007 ER PT J AU Aaltonen, T Adelman, J Akimoto, T Albrow, MG Gonzalez, BA Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Azzurri, P Badgett, W Barbaro-Galtieri, A Barnes, VE Barnett, BA Bartsch, V Bauer, G Beauchemin, PH Bedeschi, F Bednar, P Beecher, D Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Beringer, J Bhatti, A Binkley, M Bisello, D Bizjak, I Blair, RE Blocker, C Blumenfeld, B Bocci, A Bodek, A Boisvert, V Bolla, G Bortoletto, D Boudreau, J Boveia, A Brau, B Bridgeman, A Brigliadori, L Bromberg, C Brubaker, E Budagov, J Budd, HS Budd, S Burkett, K Busetto, G Bussey, P Buzatu, A Byrum, KL Cabrera, S Calancha, C Campanelli, M Campbell, M Canelli, F Canepa, A 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 Chang, SH Chen, YC Chertok, M Chiarelli, G Chlachidze, G Chlebana, F Cho, K Chokheli, D Chou, JP Choudalakis, G Chuang, SH Chung, K Chung, WH Chung, YS Ciobanu, CI Ciocci, MA Clark, A Clark, D Compostella, G Convery, ME Conway, J Copic, K Cordelli, M Cortiana, G Cox, DJ Crescioli, F Almenar, CC Cuevas, J Culbertson, R Cully, JC Dagenhart, D Datta, M Davies, T de Barbaro, P De Cecco, S Deisher, A De Lorenzo, G Dell'Orso, M Deluca, C Demortier, L Deng, J Deninno, M Derwent, PF di Giovanni, GP Dionisi, C Di Ruzza, B Dittmann, JR D'Onofrio, M Donati, S Dong, P Donini, J Dorigo, T Dube, S Efron, J Elagin, A Erbacher, R Errede, D Errede, S Eusebi, R Fang, HC Farrington, S Fedorko, WT Feild, RG Feindt, M Fernandez, JP Ferrazza, C Field, R Flanagan, G Forrest, R Franklin, M Freeman, JC Furic, I Gallinaro, M Galyardt, J Garberson, F Garcia, JE Garfinkel, AF Genser, K Gerberich, H Gerdes, D Gessler, A Giagu, S Giakoumopoulou, V Giannetti, P Gibson, K Gimmell, JL Ginsburg, CM Giokaris, N Giordani, M Giromini, P Giunta, M Giurgiu, G Glagolev, V Glenzinski, D Gold, M Goldschmidt, N Golossanov, A Gomez, G Gomez-Ceballos, G Goncharov, M Gonzalez, O Gorelov, I Goshaw, AT Goulianos, K Gresele, A Grinstein, S Grosso-Pilcher, C Group, RC Grundler, U da Costa, JG Gunay-Unalan, Z Haber, C Hahn, K Hahn, SR Halkiadakis, E Han, BY Han, JY Handler, R Happacher, F Hara, K Hare, D Hare, M Harper, S Harr, RF Harris, RM Hartz, M Hatakeyama, K Hauser, J Hays, C Heck, M Heijboer, A Heinemann, B Heinrich, J Henderson, C Herndon, M Heuser, J Hewamanage, S Hidas, D Hill, CS Hirschbuehl, D Hocker, A Hou, S Houlden, M Hsu, SC Huffman, BT Hughes, RE Husemann, U Huston, J Incandela, J Introzzi, G Iori, M Ivanov, A James, E Jayatilaka, B Jeon, EJ Jha, MK Jindariani, S Johnson, W Jones, M Joo, KK Jun, SY Jung, JE Junk, TR Kamon, T Kar, D Karchin, PE Kato, Y Kephart, R Keung, J Khotilovich, V Kilminster, B Kim, DH Kim, HS Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kimura, N Kirsch, L Klimenko, S Knuteson, B Ko, BR Koay, SA Kondo, K Kong, DJ Konigsberg, J Korytov, A Kotwal, AV Kreps, M Kroll, J Krop, D Krumnack, N Kruse, M Krutelyov, V Kubo, T Kuhr, T Kulkarni, NP Kurata, M Kusakabe, Y Kwang, S Laasanen, AT Lami, S Lammel, S Lancaster, M Lander, RL Lannon, K Lath, A Latino, G Lazzizzera, I LeCompte, T Lee, E Lee, SW Leone, S Lewis, JD Lin, CS Linacre, J Lindgren, M Lipeles, E Lister, A Litvintsev, DO Liu, C Liu, T Lockyer, NS Loginov, A Loreti, M Lovas, L Lu, RS Lucchesi, D Lueck, J Luci, C Lujan, P Lukens, P Lungu, G Lyons, L Lys, J Lysak, R Lytken, E Mack, P MacQueen, D Madrak, R Maeshima, K Makhoul, K Maki, T Maksimovic, P Malde, S Malik, S Manca, G Manousakis-Katsikakis, A Margaroli, F Marino, C Marino, CP Martin, A Martin, V Martinez, M Martinez-Ballarin, R Maruyama, T Mastrandrea, P Masubuchi, T Mattson, ME Mazzanti, P McFarland, KS McIntyre, P McNulty, R Mehta, A Mehtala, P Menzione, A Merkel, P Mesropian, C Miao, T Miladinovic, N Miller, R Mills, C Milnik, M Mitra, A Mitselmakher, G Miyake, H Moggi, N Moon, CS Moore, R Morello, MJ Morlok, J Movilla Fernandez, P Mulmenstadt, J Mukherjee, A Muller, T Mumford, R Murat, P Mussini, M Nachtman, J Nagai, Y Nagano, A Naganoma, J Nakamura, K Nakano, I Napier, A Necula, V Neu, C Neubauer, MS Nielsen, J Nodulman, L Norman, M Norniella, O Nurse, E Oakes, L Oh, SH Oh, YD Oksuzian, I Okusawa, T Orava, R Osterberg, K Griso, SP Pagliarone, C Palencia, E Papadimitriou, V Papaikonomou, A Paramonov, AA Parks, B Pashapour, S Patrick, J Pauletta, G Paulini, M Paus, C Pellett, DE Penzo, A Phillips, TJ Piacentino, G Pianori, E Pinera, L Pitts, K Plager, C Pondrom, L Poukhov, O Pounder, N Prakoshyn, F Pronko, A Proudfoot, J Ptohos, F Pueschel, E Punzi, G Pursley, J Rademacker, J Rahaman, A Ramakrishnan, V Ranjan, N Redondo, I Reisert, B Rekovic, V Renton, P Rescigno, M Richter, S Rimondi, F Ristori, L Robson, A Rodrigo, T Rodriguez, T Rogers, E Rolli, S Roser, R Rossi, M Rossin, R Roy, P Ruiz, A Russ, J Rusu, V Saarikko, H Safonov, A Sakumoto, WK Salto, O Santi, L Sarkar, S Sartori, L Sato, K Savoy-Navarro, A Scheidle, T Schlabach, P Schmidt, A Schmidt, EE Schmidt, MA Schmidt, MP Schmitt, M Schwarz, T Scodellaro, L Scott, AL Scribano, A Scuri, F Sedov, A Seidel, S Seiya, Y Semenov, A Sexton-Kennedy, L Sfyrla, A Shalhout, SZ Shears, T Shepard, PF Sherman, D Shimojima, M Shiraishi, S Shochet, M Shon, Y Shreyber, I Sidoti, A Sinervo, P Sisakyan, A Slaughter, AJ Slaunwhite, J Sliwa, K Smith, JR Snider, FD Snihur, R Soha, A Somalwar, S Sorin, V Spalding, J Spreitzer, T Squillacioti, P Stanitzki, M Denis, RS Stelzer, B Stelzer-Chilton, O Stentz, D Strologas, J Stuart, D Suh, JS Sukhanov, A Suslov, I Suzuki, T Taffard, A Takashima, R Takeuchi, Y Tanaka, R Tecchio, M Teng, PK Terashi, K Thom, J Thompson, AS Thompson, GA Thomson, E Tipton, P Tiwari, V Tkaczyk, S Toback, D Tokar, S Tollefson, K Tomura, T Tonelli, D Torre, S Torretta, D Totaro, P Tourneur, S Tu, Y Turini, N Ukegawa, F Vallecorsa, S van Remortel, N Varganov, A Vataga, E Vazquez, F Velev, G Vellidis, C Veszpremi, V Vidal, M Vidal, R Vila, I Vilar, R Vine, T Vogel, M Volobouev, I Volpi, G Wurthwein, F Wagner, P Wagner, RG Wagner, RL Wagner-Kuhr, J Wagner, W Wakisaka, T Wallny, R Wang, SM Warburton, A Waters, D Weinberger, M Wester, WC Whitehouse, B Whiteson, D Wicklund, AB Wicklund, E Williams, G Williams, HH Wilson, P Winer, BL Wittich, P Wolbers, S Wolfe, C Wright, T Wu, X Wynne, SM Xie, S Yagil, A Yamamoto, K Yamaoka, J Yang, UK Yang, YC Yao, WM Yeh, GP Yoh, J Yorita, K Yoshida, T Yu, GB Yu, I Yu, SS Yun, JC Zanello, L Zanetti, A Zaw, I Zhang, X Zheng, Y Zucchelli, S AF Aaltonen, T. Adelman, J. Akimoto, T. Albrow, M. G. Alvarez Gonzaelez, B. Amerio, S. Amidei, D. Anastassov, A. Annovi, A. Antos, J. Apollinari, G. Apresyan, A. Arisawa, T. Artikov, A. Ashmanskas, W. Attal, A. Aurisano, A. Azfar, F. Azzurri, P. Badgett, W. Barbaro-Galtieri, A. Barnes, V. E. Barnett, B. A. Bartsch, V. Bauer, G. Beauchemin, P. -H. Bedeschi, F. Bednar, P. Beecher, D. Behari, S. Bellettini, G. Bellinger, J. Benjamin, D. Beretvas, A. Beringer, J. Bhatti, A. Binkley, M. Bisello, D. Bizjak, I. Blair, R. E. Blocker, C. Blumenfeld, B. Bocci, A. Bodek, A. Boisvert, V. Bolla, G. Bortoletto, D. Boudreau, J. Boveia, A. Brau, B. Bridgeman, A. Brigliadori, L. Bromberg, C. Brubaker, E. Budagov, J. Budd, H. S. Budd, S. Burkett, K. Busetto, G. Bussey, P. Buzatu, A. Byrum, K. L. Cabrera, S. Calancha, C. Campanelli, M. Campbell, M. Canelli, F. Canepa, A. 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. Chang, S. H. Chen, Y. C. Chertok, M. Chiarelli, G. Chlachidze, G. Chlebana, F. Cho, K. Chokheli, D. Chou, J. P. Choudalakis, G. Chuang, S. H. Chung, K. Chung, W. H. Chung, Y. S. Ciobanu, C. I. Ciocci, M. A. Clark, A. Clark, D. Compostella, G. Convery, M. E. Conway, J. Copic, K. Cordelli, M. Cortiana, G. Cox, D. J. Crescioli, F. Almenar, C. Cuenca Cuevas, J. Culbertson, R. Cully, J. C. Dagenhart, D. Datta, M. Davies, T. de Barbaro, P. De Cecco, S. Deisher, A. De Lorenzo, G. Dell'Orso, M. Deluca, C. Demortier, L. Deng, J. Deninno, M. Derwent, P. F. di Giovanni, G. P. Dionisi, C. Di Ruzza, B. Dittmann, J. R. D'Onofrio, M. Donati, S. Dong, P. Donini, J. Dorigo, T. Dube, S. Efron, J. Elagin, A. Erbacher, R. Errede, D. Errede, S. Eusebi, R. Fang, H. C. Farrington, S. Fedorko, W. T. Feild, R. G. Feindt, M. Fernandez, J. P. Ferrazza, C. Field, R. Flanagan, G. Forrest, R. Franklin, M. Freeman, J. C. Furic, I. Gallinaro, M. Galyardt, J. Garberson, F. Garcia, J. E. Garfinkel, A. F. Genser, K. Gerberich, H. Gerdes, D. Gessler, A. Giagu, S. Giakoumopoulou, V. Giannetti, P. Gibson, K. Gimmell, J. L. Ginsburg, C. M. Giokaris, N. Giordani, M. Giromini, P. Giunta, M. Giurgiu, G. Glagolev, V. Glenzinski, D. Gold, M. Goldschmidt, N. Golossanov, A. Gomez, G. Gomez-Ceballos, G. Goncharov, M. Gonzalez, O. Gorelov, I. Goshaw, A. T. Goulianos, K. Gresele, A. Grinstein, S. Grosso-Pilcher, C. Group, R. C. Grundler, U. da Costa, J. Guimaraes Gunay-Unalan, Z. Haber, C. Hahn, K. Hahn, S. R. Halkiadakis, E. Han, B. -Y. Han, J. Y. Handler, R. Happacher, F. Hara, K. Hare, D. Hare, M. Harper, S. Harr, R. F. Harris, R. M. Hartz, M. Hatakeyama, K. Hauser, J. Hays, C. Heck, M. Heijboer, A. Heinemann, B. Heinrich, J. Henderson, C. Herndon, M. Heuser, J. Hewamanage, S. Hidas, D. Hill, C. S. Hirschbuehl, D. Hocker, A. Hou, S. Houlden, M. Hsu, S. -C. Huffman, B. T. Hughes, R. E. Husemann, U. Huston, J. Incandela, J. Introzzi, G. Iori, M. Ivanov, A. James, E. Jayatilaka, B. Jeon, E. J. Jha, M. K. Jindariani, S. Johnson, W. Jones, M. Joo, K. K. Jun, S. Y. Jung, J. E. Junk, T. R. Kamon, T. Kar, D. Karchin, P. E. Kato, Y. Kephart, R. 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. Kimura, N. Kirsch, L. Klimenko, S. Knuteson, B. Ko, B. R. Koay, S. A. Kondo, K. Kong, D. J. Konigsberg, J. Korytov, A. Kotwal, A. V. Kreps, M. Kroll, J. Krop, D. Krumnack, N. Kruse, M. Krutelyov, V. Kubo, T. Kuhr, T. Kulkarni, N. P. Kurata, M. Kusakabe, Y. Kwang, S. Laasanen, A. T. Lami, S. Lammel, S. Lancaster, M. Lander, R. L. Lannon, K. Lath, A. Latino, G. Lazzizzera, I. LeCompte, T. Lee, E. Lee, S. W. Leone, S. Lewis, J. D. Lin, C. S. Linacre, J. Lindgren, M. Lipeles, E. Lister, A. Litvintsev, D. O. Liu, C. Liu, T. Lockyer, N. S. Loginov, A. Loreti, M. Lovas, L. Lu, R. -S. Lucchesi, D. Lueck, J. Luci, C. Lujan, P. Lukens, P. Lungu, G. Lyons, L. Lys, J. Lysak, R. Lytken, E. Mack, P. MacQueen, D. Madrak, R. Maeshima, K. Makhoul, K. Maki, T. Maksimovic, P. Malde, S. Malik, S. Manca, G. Manousakis-Katsikakis, A. Margaroli, F. Marino, C. Marino, C. P. Martin, A. Martin, V. Martinez, M. Martinez-Ballarin, R. Maruyama, T. Mastrandrea, P. Masubuchi, T. Mattson, M. E. Mazzanti, P. McFarland, K. S. McIntyre, P. McNulty, R. Mehta, A. Mehtala, P. Menzione, A. Merkel, P. Mesropian, C. Miao, T. Miladinovic, N. Miller, R. Mills, C. Milnik, M. Mitra, A. Mitselmakher, G. Miyake, H. Moggi, N. Moon, C. S. Moore, R. Morello, M. J. Morlok, J. Movilla Fernandez, P. Mulmenstadt, J. Mukherjee, A. Muller, Th. Mumford, R. Murat, P. Mussini, M. Nachtman, J. Nagai, Y. Nagano, A. Naganoma, J. Nakamura, K. Nakano, I. Napier, A. Necula, V. Neu, C. Neubauer, M. S. Nielsen, J. Nodulman, L. Norman, M. Norniella, O. Nurse, E. Oakes, L. Oh, S. H. Oh, Y. D. Oksuzian, I. Okusawa, T. Orava, R. Osterberg, K. Griso, S. Pagan Pagliarone, C. Palencia, E. Papadimitriou, V. Papaikonomou, A. Paramonov, A. A. Parks, B. Pashapour, S. Patrick, J. Pauletta, G. Paulini, M. Paus, C. Pellett, D. E. Penzo, A. Phillips, T. J. Piacentino, G. Pianori, E. Pinera, L. Pitts, K. Plager, C. Pondrom, L. Poukhov, O. Pounder, N. Prakoshyn, F. Pronko, A. Proudfoot, J. Ptohos, F. Pueschel, E. Punzi, G. Pursley, J. Rademacker, J. Rahaman, A. Ramakrishnan, V. Ranjan, N. Redondo, I. Reisert, B. Rekovic, V. Renton, P. Rescigno, M. Richter, S. Rimondi, F. Ristori, L. Robson, A. Rodrigo, T. Rodriguez, T. Rogers, E. Rolli, S. Roser, R. Rossi, M. Rossin, R. Roy, P. Ruiz, A. Russ, J. Rusu, V. Saarikko, H. Safonov, A. Sakumoto, W. K. Salto, O. Santi, L. Sarkar, S. Sartori, L. Sato, K. Savoy-Navarro, A. Scheidle, T. Schlabach, P. Schmidt, A. Schmidt, E. E. Schmidt, M. A. Schmidt, M. P. Schmitt, M. Schwarz, T. Scodellaro, L. Scott, A. L. Scribano, A. Scuri, F. Sedov, A. Seidel, S. Seiya, Y. Semenov, A. Sexton-Kennedy, L. Sfyrla, A. Shalhout, S. Z. Shears, T. Shepard, P. F. Sherman, D. Shimojima, M. Shiraishi, S. Shochet, M. Shon, Y. Shreyber, I. Sidoti, A. Sinervo, P. Sisakyan, A. Slaughter, A. J. Slaunwhite, J. Sliwa, K. Smith, J. R. Snider, F. D. Snihur, R. Soha, A. Somalwar, S. Sorin, V. Spalding, J. Spreitzer, T. Squillacioti, P. Stanitzki, M. Denis, R. St. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Stuart, D. Suh, J. S. Sukhanov, A. Suslov, I. Suzuki, T. Taffard, A. Takashima, R. Takeuchi, Y. Tanaka, R. Tecchio, M. Teng, P. K. Terashi, K. Thom, J. Thompson, A. S. Thompson, G. A. Thomson, E. Tipton, P. Tiwari, V. Tkaczyk, S. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Tourneur, S. Tu, Y. Turini, N. Ukegawa, F. Vallecorsa, S. van Remortel, N. Varganov, A. Vataga, E. Vazquez, F. Velev, G. Vellidis, C. Veszpremi, V. Vidal, M. Vidal, R. Vila, I. Vilar, R. Vine, T. Vogel, M. Volobouev, I. Volpi, G. Wuerthwein, F. Wagner, P. Wagner, R. G. Wagner, R. L. Wagner-Kuhr, J. Wagner, W. Wakisaka, T. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Weinberger, M. Wester, W. C., III Whitehouse, B. Whiteson, D. Wicklund, A. B. Wicklund, E. Williams, G. Williams, H. H. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, C. Wright, T. Wu, X. Wynne, S. M. Xie, S. Yagil, A. Yamamoto, K. Yamaoka, J. Yang, U. K. Yang, Y. C. Yao, W. M. Yeh, G. P. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanello, L. Zanetti, A. Zaw, I. Zhang, X. Zheng, Y. Zucchelli, S. CA CDF Collaboration TI Measurement of the fraction of t(t)over-bar production via gluon-gluon fusion in p(p)over-bar collisions at root s=1.96 Tev SO PHYSICAL REVIEW D LA English DT Article ID QUARK PAIR PRODUCTION; SPIN CORRELATIONS; COLLIDERS AB We present a measurement of the ratio of the t (t) over bar production cross section via gluon-gluon fusion to the total t (t) over bar production cross section in p (p) over bar collisions at root s = 1.96 Tev at the Tevatron. Using a data sample with an integrated luminosity of 955 pb(-1) recorded by the CDF II detector at Fermilab, we select events based on the t (t) over bar decay to lepton + jets. Using an artificial neural network technique we discriminate between t (t) over bar events produced via q (q) over bar annihilation and gg fusion, and find G(f) = sigma(gg -> t (t) over bar/sigma(p (p) over bar -> t (t) over bar) < 0.33 at the 68% confidence level. This result is combined with a previous measurement to obtain the most stringent measurement of this quantity by CDF to date, G(f) = 0.07(-0.07)(+0.15). C1 [Chen, Y. C.; Hou, S.; Husemann, U.; Loginov, A.; Lu, R. -S.; Martin, A.; Mitra, A.; Schmidt, M. P.; Stanitzki, M.; Teng, P. K.; Tipton, P.; Wang, S. M.; Yang, U. K.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan. [Blair, R. E.; Byrum, K. L.; LeCompte, T.; Nodulman, L.; Proudfoot, J.; Wagner, P.; Wagner, R. G.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA. [Giakoumopoulou, V.; Giokaris, N.; Manousakis-Katsikakis, A.; Vellidis, C.] Univ Athens, GR-15771 Athens, Greece. [Attal, A.; Cavalli-Sforza, M.; De Lorenzo, G.; Deluca, C.; D'Onofrio, M.; Martinez, M.; Salto, O.] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain. [Dittmann, J. R.; Hewamanage, S.; Krumnack, N.] Baylor Univ, Waco, TX 76798 USA. [Castro, A.; Deninno, M.; Jha, M. K.; Mazzanti, P.; Moggi, N.; Mussini, M.; Rimondi, F.; Zucchelli, S.] Ist Nazl Fis Nucl, I-40127 Bologna, Italy. [Castro, A.; Mussini, M.; Rimondi, F.; Zucchelli, S.] Univ Bologna, I-40127 Bologna, Italy. [Blocker, C.; Clark, D.; Kirsch, L.; Miladinovic, N.] Brandeis Univ, Waltham, MA 02254 USA. [Chertok, M.; Conway, J.; Cox, D. J.; Almenar, C. Cuenca; Erbacher, R.; Forrest, R.; Ivanov, A.; Johnson, W.; Lander, R. L.; Lister, A.; Pellett, D. E.; Schwarz, T.; Smith, J. R.; Soha, A.] Univ Calif Davis, Davis, CA 95616 USA. [Dong, P.; Hauser, J.; Plager, C.; Stelzer, B.; Wallny, R.; Zheng, Y.] Univ Calif Los Angeles, Los Angeles, CA 90024 USA. [Hsu, S. -C.; Lipeles, E.; Norman, M.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Boveia, A.; Brau, B.; Garberson, F.; Hill, C. S.; Incandela, J.; Koay, S. A.; Krutelyov, V.; Rossin, R.; Scott, A. L.; Stuart, D.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Chung, K.; Galyardt, J.; Jun, S. Y.; Paus, C.; Pueschel, E.; Russ, J.; Tiwari, V.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Alvarez Gonzaelez, B.; Casal, B.; Cuevas, J.; Gomez, G.; Paulini, M.; Rodrigo, T.; Ruiz, A.; Scodellaro, L.; Vila, I.; Vilar, R.] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain. [Chung, K.; Galyardt, J.; Jun, S. Y.; Paus, C.; Pueschel, E.; Russ, J.; Tiwari, V.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Adelman, J.; Brubaker, E.; Fedorko, W. T.; Grosso-Pilcher, C.; Kim, Y. K.; Krop, D.; Kwang, S.; Paramonov, A. A.; Schmidt, M. A.; Shiraishi, S.; Shochet, M.; Wolfe, C.; Yang, U. K.; Yorita, K.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Antos, J.; Bednar, P.; Lovas, L.; Lysak, R.; Tokar, S.] Comenius Univ, Bratislava 84248, Slovakia. [Antos, J.; Bednar, P.; Lovas, L.; Lysak, R.; Tokar, S.] Inst Expt Phys, Kosice 04001, Slovakia. [Artikov, A.; Budagov, J.; Chokheli, D.; Glagolev, V.; Poukhov, O.; Prakoshyn, F.; Sisakyan, A.; Suslov, I.] Joint Inst Nucl Res, RU-141980 Dubna, Russia. [Benjamin, D.; Bocci, A.; Cabrera, S.; Deng, J.; Goshaw, A. T.; Hidas, D.; Jayatilaka, B.; Ko, B. R.; Kruse, M.; Necula, V.; Oh, S. H.; Phillips, T. J.] Duke Univ, Durham, NC 27708 USA. [Albrow, M. G.; Apollinari, G.; Ashmanskas, W.; Badgett, W.; Beretvas, A.; Binkley, M.; Burkett, K.; Canelli, F.; Casarsa, M.; Chlachidze, G.; Convery, M. E.; Culbertson, R.; Dagenhart, D.; Datta, M.; Derwent, P. F.; Eusebi, R.; Freeman, J. C.; Genser, K.; Ginsburg, C. M.; Golossanov, A.; Group, R. C.; Hahn, S. R.; Harris, R. M.; Hocker, A.; James, E.; Jindariani, S.; Junk, T. R.; Kephart, R.; Lammel, S.; Lewis, J. D.; Lindgren, M.; Litvintsev, D. O.; Liu, T.; Lukens, P.; Madrak, R.; Maeshima, K.; Miao, T.; Moore, R.; Movilla Fernandez, P.; Mukherjee, A.; Murat, P.; Nachtman, J.; Palencia, E.; Papadimitriou, V.; Patrick, J.; Pronko, A.; Ptohos, F.; Reisert, B.; Roser, R.; Rusu, V.; Sato, K.; Schlabach, P.; Schmidt, E. E.; Sexton-Kennedy, L.; Slaughter, A. J.; Snider, F. D.; Spalding, J.; Thom, J.; Tkaczyk, S.; Tonelli, D.; Torretta, D.; Velev, G.; Vidal, R.; Wagner, R. L.; Wester, W. C., III; Wicklund, E.; Wilson, P.; Wittich, P.; Wolbers, S.; Yeh, G. P.; Yoh, J.; Yu, S. S.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Carrillo, S.; Field, R.; Furic, I.; Goldschmidt, N.; Kar, D.; Klimenko, S.; Konigsberg, J.; Korytov, A.; Mitselmakher, G.; Oksuzian, I.; Pinera, L.; Sukhanov, A.; Vazquez, F.] Univ Florida, Gainesville, FL 32611 USA. [Annovi, A.; Cordelli, M.; Giromini, P.; Happacher, F.; Kim, M. J.; Torre, S.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Clark, A.; Sfyrla, A.; Vallecorsa, S.; Wu, X.] Univ Geneva, CH-1211 Geneva 4, Switzerland. [Bussey, P.; Davies, T.; Martin, A.; Robson, A.; Denis, R. St.; Thompson, A. S.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland. [Chou, J. P.; Franklin, M.; Grinstein, S.; da Costa, J. Guimaraes; Mills, C.; Sherman, D.; Zaw, I.] Harvard Univ, Cambridge, MA 02138 USA. [Aaltonen, T.; Maki, T.; Mehtala, P.; Orava, R.; Osterberg, K.; Saarikko, H.; van Remortel, N.] Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland. [Aaltonen, T.; Maki, T.; Mehtala, P.; Orava, R.; Osterberg, K.; Saarikko, H.; van Remortel, N.] Helsinki Inst Phys, FIN-00014 Helsinki, Finland. [Bridgeman, A.; Budd, S.; Errede, D.; Errede, S.; Gerberich, H.; Grundler, U.; Marino, C. P.; Neubauer, M. S.; Norniella, O.; Pitts, K.; Rogers, E.; Taffard, A.; Thompson, G. A.; Zhang, X.] Univ Illinois, Urbana, IL 61801 USA. [Barnett, B. A.; Behari, S.; Blumenfeld, B.; Giurgiu, G.; Maksimovic, P.; Mumford, R.] Johns Hopkins Univ, Baltimore, MD 21218 USA. [Feindt, M.; Gessler, A.; Heck, M.; Heuser, J.; Hirschbuehl, D.; Kotwal, A. V.; Kreps, M.; Kuhr, T.; Lueck, J.; Mack, P.; Marino, C.; Milnik, M.; Morlok, J.; Muller, Th.; Papaikonomou, A.; Richter, S.; Scheidle, T.; Schmidt, A.; Wagner-Kuhr, J.; Wagner, W.] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany. [Chang, S. H.; Chlebana, F.; Cho, K.; Jeon, E. J.; Joo, K. K.; Jung, J. E.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Lin, C. S.; Moon, C. S.; Oh, Y. D.; Suh, J. S.; Yang, Y. C.; Yu, I.] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea. [Chang, S. H.; Chlebana, F.; Cho, K.; Jeon, E. J.; Joo, K. K.; Jung, J. E.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Lin, C. S.; Moon, C. S.; Oh, Y. D.; Suh, J. S.; Yang, Y. C.; Yu, I.] Seoul Natl Univ, Seoul 151742, South Korea. [Chang, S. H.; Chlebana, F.; Cho, K.; Jeon, E. J.; Joo, K. K.; Jung, J. E.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Lin, C. S.; Moon, C. S.; Oh, Y. D.; Suh, J. S.; Yang, Y. C.; Yu, I.] Sungkyunkwan Univ, Suwon 440746, South Korea. [Chang, S. H.; Chlebana, F.; Cho, K.; Jeon, E. J.; Joo, K. K.; Jung, J. E.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Lin, C. S.; Moon, C. S.; Oh, Y. D.; Suh, J. S.; Yang, Y. C.; Yu, I.] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea. [Chang, S. H.; Chlebana, F.; Cho, K.; Jeon, E. J.; Joo, K. K.; Jung, J. E.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Lin, C. S.; Moon, C. S.; Oh, Y. D.; Shreyber, I.; Suh, J. S.; Yang, Y. C.; Yu, I.] Chonnam Natl Univ, Kwangju 500757, South Korea. [Barbaro-Galtieri, A.; Beringer, J.; Cerri, A.; Deisher, A.; Fang, H. C.; Heinemann, B.; Lujan, P.; Lys, J.; Mulmenstadt, J.; Nielsen, J.; Volobouev, I.; Yao, W. M.] Ernest O Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Houlden, M.; Manca, G.; McNulty, R.; Mehta, A.; Shears, T.; Wynne, S. M.] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England. [Bartsch, V.; Beecher, D.; Bizjak, I.; Lancaster, M.; Malik, S.; Nurse, E.; Vine, T.; Waters, D.] UCL, London WC1E 6BT, England. [Calancha, C.; Fernandez, J. P.; Gonzalez, O.; Martinez-Ballarin, R.; Redondo, I.; Vidal, M.] Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain. [Bauer, G.; Choudalakis, G.; Gomez-Ceballos, G.; Hahn, K.; Henderson, C.; Knuteson, B.; Makhoul, K.; Xie, S.] MIT, Cambridge, MA 02139 USA. [Beauchemin, P. -H.; Buzatu, A.; Carron, S.; MacQueen, D.; Pashapour, S.; Roy, P.; Sinervo, P.; Snihur, R.; Spreitzer, T.; Warburton, A.; Williams, G.] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada. [Beauchemin, P. -H.; Buzatu, A.; Carron, S.; MacQueen, D.; Pashapour, S.; Roy, P.; Sinervo, P.; Snihur, R.; Spreitzer, T.; Warburton, A.; Williams, G.] Univ Toronto, Toronto, ON M5S 1A7, Canada. [Amidei, D.; Campbell, M.; Copic, K.; Cully, J. C.; Tecchio, M.; Varganov, A.; Wright, T.] Univ Michigan, Ann Arbor, MI 48109 USA. [Bromberg, C.; Campanelli, M.; Gunay-Unalan, Z.; Huston, J.; Miller, R.; Sorin, V.; Tollefson, K.] Michigan State Univ, E Lansing, MI 48824 USA. [Shreyber, I.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Gold, M.; Gorelov, I.; Rekovic, V.; Seidel, S.; Strologas, J.; Vogel, M.] Univ New Mexico, Albuquerque, NM 87131 USA. [Anastassov, A.; Schmitt, M.; Stentz, D.] Northwestern Univ, Evanston, IL 60208 USA. [Efron, J.; Hughes, R. E.; Kilminster, B.; Lannon, K.; Parks, B.; Slaunwhite, J.; Winer, B. L.] Ohio State Univ, Columbus, OH 43210 USA. [Nakano, I.; Takashima, R.; Tanaka, R.] Okayama Univ, Okayama 7008530, Japan. [Kato, Y.; Okusawa, T.; Seiya, Y.; Wakisaka, T.; Yamamoto, K.; Yoshida, T.] Osaka City Univ, Osaka 588, Japan. [Azfar, F.; Farrington, S.; Harper, S.; Hays, C.; Huffman, B. T.; Linacre, J.; Lyons, L.; Malde, S.; Oakes, L.; Pounder, N.; Renton, P.; Stelzer-Chilton, O.] Univ Oxford, Oxford OX1 3RH, England. [Amerio, S.; Bisello, D.; Brigliadori, L.; Busetto, G.; Compostella, G.; Cortiana, G.; Donini, J.; Dorigo, T.; Gresele, A.; Lazzizzera, I.; Loreti, M.; Lucchesi, D.; Griso, S. Pagan] Ist Nazl Fis Nucl, Sez Padova Trento, I-35131 Padua, Italy. [Amerio, S.; Bisello, D.; Busetto, G.; Cortiana, G.; Gresele, A.; Lazzizzera, I.; Loreti, M.; Lucchesi, D.; Griso, S. Pagan] Univ Padua, I-35131 Padua, Italy. [Ciobanu, C. I.; di Giovanni, G. P.; Savoy-Navarro, A.; Tourneur, S.] Univ Paris 06, LPNHE, IN2P3, CNRS,UMR7585, F-75252 Paris, France. [Canepa, A.; Heijboer, A.; Heinrich, J.; Keung, J.; Kroll, J.; Lockyer, N. S.; Neu, C.; Pianori, E.; Rodriguez, T.; Thomson, E.; Tu, Y.; Whiteson, D.; Williams, H. H.] Univ Penn, Philadelphia, PA 19104 USA. [Azzurri, P.; Bedeschi, F.; Bellettini, G.; Carosi, R.; Catastini, P.; Cavaliere, V.; Chiarelli, G.; Ciocci, M. A.; Crescioli, F.; Dell'Orso, M.; Donati, S.; Ferrazza, C.; Garcia, J. E.; Giannetti, P.; Giunta, M.; Introzzi, G.; Lami, S.; Latino, G.; Leone, S.; Menzione, A.; Morello, M. J.; Pagliarone, C.; Piacentino, G.; Punzi, G.; Ristori, L.; Sartori, L.; Scribano, A.; Scuri, F.; Sidoti, A.; Squillacioti, P.; Turini, N.; Vataga, E.; Volpi, G.] Ist Nazl Fis Nucl, I-56127 Pisa, Italy. [Bellettini, G.; Crescioli, F.; Dell'Orso, M.; Donati, S.; Giunta, M.; Morello, M. J.; Punzi, G.; Volpi, G.] Univ Pisa, I-56127 Pisa, Italy. [Catastini, P.; Cavaliere, V.; Ciocci, M. A.; Latino, G.; Scribano, A.; Squillacioti, P.; Turini, N.] Univ Siena, I-56127 Pisa, Italy. [Azzurri, P.; Ferrazza, C.; Vataga, E.] Scuola Normale Super Pisa, I-56127 Pisa, Italy. [Boudreau, J.; Gibson, K.; Hartz, M.; Liu, C.; Rahaman, A.; Shepard, P. F.] Univ Pittsburgh, Pittsburgh, PA 15260 USA. [Apresyan, A.; Barnes, V. E.; Bolla, G.; Bortoletto, D.; Flanagan, G.; Garfinkel, A. F.; Jones, M.; Laasanen, A. T.; Lytken, E.; Margaroli, F.; Merkel, P.; Ranjan, N.; Sedov, A.; Veszpremi, V.] Purdue Univ, W Lafayette, IN 47907 USA. [Bodek, A.; Boisvert, V.; Budd, H. S.; Chung, Y. S.; de Barbaro, P.; Gimmell, J. L.; Han, B. -Y.; Han, J. Y.; McFarland, K. S.; Sakumoto, W. K.; Yu, G. B.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Demortier, L.; Goulianos, K.; Hatakeyama, K.; Lungu, G.; Mesropian, C.; Terashi, K.] Rockefeller Univ, New York, NY 10021 USA. [De Cecco, S.; Dionisi, C.; Gallinaro, M.; Giagu, S.; Iori, M.; Luci, C.; Mastrandrea, P.; Rescigno, M.; Sarkar, S.; Zanello, L.] Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy. [Dionisi, C.; Giagu, S.; Iori, M.; Luci, C.; Sarkar, S.; Zanello, L.] Univ Roma La Sapienza, I-00185 Rome, Italy. [Chuang, S. H.; Dube, S.; Halkiadakis, E.; Hare, D.; Lath, A.; Somalwar, S.; Yamaoka, J.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Aurisano, A.; Elagin, A.; Goncharov, M.; Kamon, T.; Khotilovich, V.; Lee, E.; Lee, S. W.; McIntyre, P.; Safonov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX 77843 USA. [Cauz, D.; Di Ruzza, B.; Giordani, M.; Penzo, A.; Rossi, M.; Santi, L.; Totaro, P.; Zanetti, A.] Ist Nazl Fis Nucl Trieste, Udine, Italy. [Cauz, D.; Di Ruzza, B.; Giordani, M.; Pauletta, G.; Santi, L.; Totaro, P.] Univ Trieste, Udine, Italy. [Akimoto, T.; Hara, K.; Kim, S. H.; Kimura, N.; Kubo, T.; Kurata, M.; Maruyama, T.; Masubuchi, T.; Miyake, H.; Nagai, Y.; Nagano, A.; Nakamura, K.; Shimojima, M.; Suzuki, T.; Takeuchi, Y.; Tomura, T.; Ukegawa, F.] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan. [Hare, M.; Napier, A.; Rolli, S.; Sliwa, K.; Whitehouse, B.] Tufts Univ, Medford, MA 02155 USA. [Arisawa, T.; Kondo, K.; Kusakabe, Y.; Naganoma, J.] Waseda Univ, Tokyo 169, Japan. [Harr, R. F.; Karchin, P. E.; Kulkarni, N. P.; Mattson, M. E.; Shalhout, S. Z.] Wayne State Univ, Detroit, MI 48201 USA. [Bellinger, J.; Carlsmith, D.; Chung, W. H.; Handler, R.; Herndon, M.; Pondrom, L.; Pursley, J.; Ramakrishnan, V.; Shon, Y.] Univ Wisconsin, Madison, WI 53706 USA. [Chen, Y. C.; Hou, S.; Husemann, U.; Loginov, A.; Lu, R. -S.; Martin, A.; Mitra, A.; Schmidt, M. P.; Stanitzki, M.; Teng, P. K.; Tipton, P.; Wang, S. M.; Yang, U. K.] Yale Univ, New Haven, CT 06520 USA. RP Aaltonen, T (reprint author), Acad Sinica, Inst Phys, Taipei 11529, Taiwan. RI Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan, zeynep/C-6660-2015; Lazzizzera, Ignazio/E-9678-2015; Cabrera Urban, Susana/H-1376-2015; Garcia, Jose /H-6339-2015; ciocci, maria agnese /I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Introzzi, Gianluca/K-2497-2015; Muelmenstaedt, Johannes/K-2432-2015; Gorelov, Igor/J-9010-2015; Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; manca, giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Punzi, Giovanni/J-4947-2012; Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Lysak, Roman/H-2995-2014; Moon, Chang-Seong/J-3619-2014; Scodellaro, Luca/K-9091-2014; Xie, Si/O-6830-2016; Canelli, Florencia/O-9693-2016 OI Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611; Lazzizzera, Ignazio/0000-0001-5092-7531; ciocci, maria agnese /0000-0003-0002-5462; Introzzi, Gianluca/0000-0002-1314-2580; Muelmenstaedt, Johannes/0000-0003-1105-6678; Gorelov, Igor/0000-0001-5570-0133; Ruiz, Alberto/0000-0002-3639-0368; Punzi, Giovanni/0000-0002-8346-9052; Annovi, Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; Moon, Chang-Seong/0000-0001-8229-7829; Scodellaro, Luca/0000-0002-4974-8330; Xie, Si/0000-0003-2509-5731; Canelli, Florencia/0000-0001-6361-2117 FU U. S. Department of Energy and 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; the Swiss National Science Foundation; A. P. Sloan Foundation; the Bundesministerium fur Bildung und Forschung, Germany; Korean Science and Engineering Foundation and the Korean Research Foundation; Science and Technology Facilities Council and the Royal Society, UK; Institut National de Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation for Basic Research; Ministerio de Educacion y Ciencia and Programa Consolider-Ingenio 2010, Spain; Slovak R D Agency; Academy of Finland 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 Science and Engineering Foundation and the Korean Research Foundation; 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 Educacion y Ciencia and Programa Consolider-Ingenio 2010, Spain; the Slovak R & D Agency; and the Academy of Finland. NR 22 TC 7 Z9 7 U1 1 U2 7 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 FEB PY 2009 VL 79 IS 3 AR 031101 DI 10.1103/PhysRevD.79.031101 PG 8 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600001 ER PT J AU Ahrens, V Becher, T Neubert, M Yang, LL AF Ahrens, Valentin Becher, Thomas Neubert, Matthias Yang, Li Lin TI Origin of the large perturbative corrections to Higgs production at hadron colliders SO PHYSICAL REVIEW D LA English DT Article ID BOSON PRODUCTION; QCD AB The very large K factor for Higgs-boson production at hadron colliders is shown to result from enhanced perturbative corrections of the form (C-A pi alpha(s))(n), which arise in the analytic continuation of the gluon form factor to timelike momentum transfer. These terms are resummed to all orders in perturbation theory using the renormalization group. After the resummation, the K factor for the production of a light Higgs boson at the LHC is reduced to a value close to 1.3. C1 [Ahrens, Valentin; Neubert, Matthias; Yang, Li Lin] Johannes Gutenberg Univ Mainz, Inst Phys THEP, D-55099 Mainz, Germany. [Becher, Thomas] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Ahrens, V (reprint author), Johannes Gutenberg Univ Mainz, Inst Phys THEP, D-55099 Mainz, Germany. NR 24 TC 87 Z9 87 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB PY 2009 VL 79 IS 3 AR 033013 DI 10.1103/PhysRevD.79.033013 PG 5 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600023 ER PT J AU Aoki, S Ishikawa, KI Ishizuka, N Izubuchi, T Kadoh, D Kanaya, K Kuramashi, Y Namekawa, Y Okawa, M Taniguchi, Y Ukawa, A Ukita, N Yoshie, T AF Aoki, S. Ishikawa, K. -I. Ishizuka, N. Izubuchi, T. Kadoh, D. Kanaya, K. Kuramashi, Y. Namekawa, Y. Okawa, M. Taniguchi, Y. Ukawa, A. Ukita, N. Yoshie, T. TI 2+1 flavor lattice QCD toward the physical point SO PHYSICAL REVIEW D LA English DT Article ID HYBRID MONTE-CARLO; CHIRAL PERTURBATION-THEORY; LOCAL BOSONIC ALGORITHM; DYNAMICAL FERMIONS; FINITE-VOLUME; MESON MASSES; DECAY CONSTANTS; PHMC ALGORITHM; QUARK MASSES; GAUGE-THEORY AB We present the first results of the PACS-CS project which aims to simulate 2 + 1 flavor lattice QCD on the physical point with the nonperturbatively O(a)-improved Wilson quark action and the Iwasaki gauge action. Numerical simulations are carried out at beta = 1.9, corresponding to the lattice spacing of a = 0.0907(13) fm, on a 32(3) X 64 lattice with the use of the domain-decomposed HMC algorithm to reduce the up-down quark mass. Further algorithmic improvements make possible the simulation whose up-down quark mass is as light as the physical value. The resulting pseudoscalar meson masses range from 702 MeV down to 156 MeV, which clearly exhibit the presence of chiral logarithms. An analysis of the pseudoscalar meson sector with SU(3) chiral perturbation theory reveals that the next-to-leading order corrections are large at the physical strange quark mass. In order to estimate the physical up-down quark mass, we employ the SU(2) chiral analysis expanding the strange quark contributions analytically around the physical strange quark mass. The SU(2) low energy constants (l) over bar (3) and (l) over bar (4) are comparable with the recent estimates by other lattice QCD calculations. We determine the physical point together with the lattice spacing employing m(pi), m(K) and m(Omega) as input. The hadron spectrum extrapolated to the physical point shows an agreement with the experimental values at a few % level of statistical errors, albeit there remain possible cutoff effects. We also find that our results of f(pi), f(K) and their ratio, where renormalization is carries out perturbatively at one loop, are compatible with the experimental values. For the physical quark masses we obtain m(ud)((MS) over bar) and m(s)((MS) over bar) extracted from the axial-vector Ward-Takahashi identity with the perturbative renormalization factors. We also briefly discuss the results for the static quark potential. C1 [Aoki, S.; Ishizuka, N.; Kanaya, K.; Kuramashi, Y.; Taniguchi, Y.; Ukawa, A.; Yoshie, T.] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan. [Aoki, S.; Izubuchi, T.] Brookhaven Natl Lab, Riken BNL Res Ctr, Upton, NY 11973 USA. [Ishizuka, N.; Kadoh, D.; Kuramashi, Y.; Namekawa, Y.; Taniguchi, Y.; Ukawa, A.; Ukita, N.; Yoshie, T.] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan. [Ishikawa, K. -I.; Okawa, M.] Hiroshima Univ, Grad Sch Sci, Hiroshima 7398526, Japan. [Izubuchi, T.] Kanazawa Univ, Inst Theoret Phys, Kanazawa, Ishikawa 9201192, Japan. RP Aoki, S (reprint author), Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan. RI Ukawa, Akira/A-6549-2011; Kuramashi, Yoshinobu /C-8637-2016 NR 92 TC 222 Z9 223 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB PY 2009 VL 79 IS 3 AR 034503 DI 10.1103/PhysRevD.79.034503 PG 33 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600061 ER PT J AU Arnold, S Metz, A Schlegel, M AF Arnold, S. Metz, A. Schlegel, M. TI Dilepton production from polarized hadron hadron collisions SO PHYSICAL REVIEW D LA English DT Article ID DRELL-YAN-PROCESS; SINGLE-SPIN ASYMMETRIES; LEPTON-PAIR PRODUCTION; FINAL-STATE INTERACTIONS; DEEP-INELASTIC SCATTERING; ANGULAR-DISTRIBUTIONS; HARD-SCATTERING; HIGH-ENERGIES; PARTON DISTRIBUTIONS; TRANSVERSE-MOMENTUM AB In this paper we present a comprehensive formalism for dilepton production from the collision of two polarized spin-1/2 hadrons by identifying the general angular distribution of the cross section in combination with a complete set of structure functions. The various structure functions are computed in the parton model approximation where we mainly consider the case when the transverse momentum of the dilepton pair is much smaller than its invariant mass. In this kinematical region dilepton production can be described in terms of transverse momentum dependent parton distributions. C1 [Arnold, S.] Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany. [Metz, A.] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA. [Schlegel, M.] Jefferson Lab, Ctr Theory, Newport News, VA 23606 USA. RP Arnold, S (reprint author), Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany. FU Verbundforschung "Hadronen und Kerne" of the BMBF; Deutsche Forschungsgemeinschaft (DFG); DOE [DE-AC0506-OR23177] FX This work has been partially supported by the Verbundforschung "Hadronen und Kerne" of the BMBF and by the Deutsche Forschungsgemeinschaft (DFG). This work was supported by DOE Contract No. DE-AC0506-OR23177, under which Jefferson Science Associates, LLC, operates Jefferson Laboratory. NR 98 TC 67 Z9 67 U1 1 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 FEB PY 2009 VL 79 IS 3 AR 034005 DI 10.1103/PhysRevD.79.034005 PG 18 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600029 ER PT J AU Aubert, B Bona, M Karyotakis, Y Lees, JP Poireau, V Prencipe, E Prudent, X Tisserand, V Garra Tico, J Grauges, E Lopez, L Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Abrams, GS Battaglia, M Brown, DN Jacobsen, RG Kerth, LT Kolomensky, YG Lynch, G Osipenkov, IL Ronan, MT Tackmann, K Tanabe, T Hawkes, CM Soni, N Watson, AT Koch, H Schroeder, T Asgeirsson, DJ Fulsom, BG Hearty, C Mattison, TS McKenna, JA Barrett, M Khan, A Blinov, VE Bukin, AD Buzykaev, AR Druzhinin, VP Golubev, VB Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Bondioli, M Curry, S Eschrich, I Kirkby, D Lankford, AJ Lund, P Mandelkern, M Martin, EC Stoker, DP Abachi, S Buchanan, C Atmacan, H Gary, JW Liu, F Long, O Vitug, GM Yasin, Z Zhang, L Sharma, V Campagnari, C Hong, TM Kovalskyi, D Mazur, MA Richman, JD Beck, TW Eisner, AM Flacco, CJ Heusch, CA Kroseberg, J Lockman, WS Martinez, AJ Schalk, T Schumm, BA Seiden, A Wilson, MG Winstrom, LO Cheng, CH Doll, DA Echenard, B Fang, F Hitlin, DG Narsky, I Piatenko, T Porter, FC Andreassen, R Mancinelli, G Meadows, BT Mishra, K Sokoloff, MD Bloom, PC Ford, WT Gaz, A Hirschauer, JF Nagel, M Nauenberg, U Smith, JG Wagner, SR Ayad, R Soffer, A Toki, WH Wilson, RJ Feltresi, E Hauke, A Jasper, H Karbach, M Merkel, J Petzold, A Spaan, B Wacker, K Kobel, MJ Nogowski, R Schubert, KR Schwierz, R Volk, A Bernard, D Bonneaud, GR Latour, E Verderi, M Clark, PJ Playfer, S Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Franchini, P Luppi, E Negrini, M Petrella, A Piemontese, L Santoro, V Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Buzzo, A Contri, R Lo Vetere, M Macri, MM Monge, MR Passaggio, S Patrignani, C Robutti, E Santroni, A Tosi, S Chaisanguanthum, KS Morii, M Adametz, A Marks, J Schenk, S Uwer, U Bernlochner, FU Klose, V Lacker, HM Bard, DJ Dauncey, PD Tibbetts, M Behera, PK Chai, X Charles, MJ Mallik, U Cochran, J Crawley, HB Dong, L Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gao, YY Gritsan, AV Guo, ZJ Lae, CK Arnaud, N Bequilleux, J D'Orazio, A Davier, M da Costa, JF Grosdidier, G Le Diberder, F Lepeltier, V Lutz, AM Pruvot, S Roudeau, P Schune, MH Serrano, J Sordini, V Stocchi, A Wormser, G Lange, DJ Wright, DM Bingham, I Burke, JP Chavez, CA Fry, JR Gabathuler, E Gamet, R Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Clarke, CK Di Lodovico, F Sacco, R Sigamani, M Cowan, G Paramesvaran, S Wren, AC Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Alwyn, KE Bailey, D Barlow, RJ Jackson, G Lafferty, GD West, TJ Yi, JI Anderson, J Chen, C Jawahery, A Roberts, DA Simi, G Tuggle, JM Dallapiccola, C Li, X Salvati, E Saremi, S Cowan, R Dujmic, D Fisher, PH Henderson, SW Sciolla, G Spitznagel, M Taylor, F Yamamoto, RK Zhao, M Patel, PM Robertson, SH Lazzaro, A Lombardo, V Palombo, F Bauer, JM Cremaldi, L Godang, R Kroeger, R Summers, DJ Zhao, HW Simard, M Taras, P Nicholson, H De Nardo, G Lista, L Monorchio, D Onorato, G Sciacca, C Raven, G Snoek, HL Jessop, CP Knoepfel, KJ LoSecco, JM Wang, WF Corwin, LA Honscheid, K Kagan, H Kass, R Morris, JP Rahimi, AM Regensburger, JJ Sekula, SJ Wong, QK Blount, NL Brau, J Frey, R Igonkina, O Kolb, JA Lu, M Rahmat, R Sinev, NB Strom, D Strube, J Torrence, E Castelli, G Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simonetto, F Stroili, R Voci, C Sanchez, PD Ben-Haim, E Briand, H Calderini, G Chauveau, J Hamon, O Leruste, P Ocariz, J Perez, A Prendki, J Sitt, S Gladney, L Biasini, M Manoni, E Angelini, C Batignani, G Bettarini, S Carpinelli, M Cervelli, A Forti, F Giorgi, MA Lusiani, A Marchiori, G Morganti, M Neri, N Paoloni, E Rizzo, G Walsh, JJ Lopes Pegna, D Lu, C Olsen, J Smith, AJS Telnov, AV Anulli, F Baracchini, E Cavoto, G Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Jackson, PD Li Gioi, L Mazzoni, MA Morganti, S Piredda, G Renga, F Voena, C Ebert, M Hartmann, T Schroder, H Waldi, R Adye, T Franek, B Olaiya, EO Wilson, FF Emery, S Escalier, M Esteve, L Hamel de Monchenault, G Kozanecki, W Vasseur, G Yeche, C Zito, M Chen, XR Liu, H Park, W Purohit, MV White, RM Wilson, JR Allen, MT Aston, D Bartoldus, R Benitez, JF Cenci, R Coleman, JP Convery, MR Dingfelder, JC Dorfan, J Dubois-Felsmann, GP Dunwoodie, W Field, RC Gabareen, AM Graham, MT Grenier, P Hast, C Innes, WR Kaminski, J Kelsey, MH Kim, H Kim, P Kocian, ML Leith, DWGS Li, S Lindquist, B Luitz, S Luth, V Lynch, HL MacFarlane, DB Marsiske, H Messner, R Muller, DR Neal, H Nelson, S O'Grady, CP Ofte, I Perl, M Ratcliff, BN Roodman, A Salnikov, AA Schindler, RH Schwiening, J Snyder, A Su, D Sullivan, MK Suzuki, K Swain, SK Thompson, JM Va'vra, J Wagner, AP Weaver, M West, CA Wisniewski, WJ Wittgen, M Wright, DH Wulsin, HW Yarritu, AK Yi, K Young, CC Ziegler, V Burchat, PR Edwards, AJ Miyashita, TS Ahmed, S Alam, MS Ernst, JA Pan, B Saeed, MA Zain, SB Spanier, SM Wogsland, BJ Eckmann, R Ritchie, JL Ruland, AM Schilling, CJ Schwitters, RF Drummond, BW Izen, JM Lou, XC Bianchi, F Gamba, D Pelliccioni, M Bomben, M Bosisio, L Cartaro, C Della Ricca, G Lanceri, L Vitale, L Azzolini, V Lopez-March, N Martinez-Vidal, F Milanes, DA Oyanguren, A Albert, J Banerjee, S Bhuyan, B Choi, HHF Hamano, K Kowalewski, R Lewczuk, MJ Nugent, IM Roney, JM Sobie, RJ Gershon, TJ Harrison, PF Ilic, J Latham, TE Mohanty, GB Pennington, MR Band, HR Chen, X Dasu, S Flood, KT Pan, Y Prepost, R Vuosalo, CO Wu, SL AF Aubert, B. Bona, M. Karyotakis, Y. Lees, J. P. Poireau, V. Prencipe, E. Prudent, X. Tisserand, V. Garra Tico, J. Grauges, E. Lopez, L. Palano, A. Pappagallo, M. Eigen, G. Stugu, B. Sun, L. Abrams, G. S. Battaglia, M. Brown, D. N. Jacobsen, R. G. Kerth, L. T. Kolomensky, Yu. G. Lynch, G. Osipenkov, I. L. Ronan, M. T. Tackmann, K. Tanabe, T. Hawkes, C. M. Soni, N. Watson, A. T. Koch, H. Schroeder, T. Asgeirsson, D. J. Fulsom, B. G. Hearty, C. Mattison, T. S. McKenna, J. A. Barrett, M. Khan, A. Blinov, V. E. Bukin, A. D. Buzykaev, A. R. Druzhinin, V. P. Golubev, V. B. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Bondioli, M. Curry, S. Eschrich, I. Kirkby, D. Lankford, A. J. Lund, P. Mandelkern, M. Martin, E. C. Stoker, D. P. Abachi, S. Buchanan, C. Atmacan, H. Gary, J. W. Liu, F. Long, O. Vitug, G. M. Yasin, Z. Zhang, L. Sharma, V. Campagnari, C. Hong, T. M. Kovalskyi, D. Mazur, M. A. Richman, J. D. Beck, T. W. Eisner, A. M. Flacco, C. J. Heusch, C. A. Kroseberg, J. Lockman, W. S. Martinez, A. J. Schalk, T. Schumm, B. A. Seiden, A. Wilson, M. G. Winstrom, L. O. Cheng, C. H. Doll, D. A. Echenard, B. Fang, F. Hitlin, D. G. Narsky, I. Piatenko, T. Porter, F. C. Andreassen, R. Mancinelli, G. Meadows, B. T. Mishra, K. Sokoloff, M. D. Bloom, P. C. Ford, W. T. Gaz, A. Hirschauer, J. F. Nagel, M. Nauenberg, U. Smith, J. G. Wagner, S. R. Ayad, R. Soffer, A. Toki, W. H. Wilson, R. J. Feltresi, E. Hauke, A. Jasper, H. Karbach, M. Merkel, J. Petzold, A. Spaan, B. Wacker, K. Kobel, M. J. Nogowski, R. Schubert, K. R. Schwierz, R. Volk, A. Bernard, D. Bonneaud, G. R. Latour, E. Verderi, M. Clark, P. J. Playfer, S. Watson, J. E. Andreotti, M. Bettoni, D. Bozzi, C. Calabrese, R. Cecchi, A. Cibinetto, G. Franchini, P. Luppi, E. Negrini, M. Petrella, A. Piemontese, L. Santoro, V. Baldini-Ferroli, R. Calcaterra, A. de Sangro, R. Finocchiaro, G. Pacetti, S. Patteri, P. Peruzzi, I. M. Piccolo, M. Rama, M. Zallo, A. Buzzo, A. Contri, R. Lo Vetere, M. Macri, M. M. Monge, M. R. Passaggio, S. Patrignani, C. Robutti, E. Santroni, A. Tosi, S. Chaisanguanthum, K. S. Morii, M. Adametz, A. Marks, J. Schenk, S. Uwer, U. Bernlochner, F. U. Klose, V. Lacker, H. M. Bard, D. J. Dauncey, P. D. Tibbetts, M. Behera, P. K. Chai, X. Charles, M. J. Mallik, U. Cochran, J. Crawley, H. B. Dong, L. Meyer, W. T. Prell, S. Rosenberg, E. I. Rubin, A. E. Gao, Y. Y. Gritsan, A. V. Guo, Z. J. Lae, C. K. Arnaud, N. Bequilleux, J. D'Orazio, A. Davier, M. da Costa, J. Firmino Grosdidier, G. Le Diberder, F. Lepeltier, V. Lutz, A. M. Pruvot, S. Roudeau, P. Schune, M. H. Serrano, J. Sordini, V. Stocchi, A. Wormser, G. Lange, D. J. Wright, D. M. Bingham, I. Burke, J. P. Chavez, C. A. Fry, J. R. Gabathuler, E. Gamet, R. Hutchcroft, D. E. Payne, D. J. Touramanis, C. Bevan, A. J. Clarke, C. K. Di Lodovico, F. Sacco, R. Sigamani, M. Cowan, G. Paramesvaran, S. Wren, A. C. Brown, D. N. Davis, C. L. Denig, A. G. Fritsch, M. Gradl, W. Alwyn, K. E. Bailey, D. Barlow, R. J. Jackson, G. Lafferty, G. D. West, T. J. Yi, J. I. Anderson, J. Chen, C. Jawahery, A. Roberts, D. A. Simi, G. Tuggle, J. M. Dallapiccola, C. Li, X. Salvati, E. Saremi, S. Cowan, R. Dujmic, D. Fisher, P. H. Henderson, S. W. Sciolla, G. Spitznagel, M. Taylor, F. Yamamoto, R. K. Zhao, M. Patel, P. M. Robertson, S. H. Lazzaro, A. Lombardo, V. Palombo, F. Bauer, J. M. Cremaldi, L. Godang, R. Kroeger, R. Summers, D. J. Zhao, H. W. Simard, M. Taras, P. Nicholson, H. De Nardo, G. Lista, L. Monorchio, D. Onorato, G. Sciacca, C. Raven, G. Snoek, H. L. Jessop, C. P. Knoepfel, K. J. LoSecco, J. M. Wang, W. F. Corwin, L. A. Honscheid, K. Kagan, H. Kass, R. Morris, J. P. Rahimi, A. M. Regensburger, J. J. Sekula, S. J. Wong, Q. K. Blount, N. L. Brau, J. Frey, R. Igonkina, O. Kolb, J. A. Lu, M. Rahmat, R. Sinev, N. B. Strom, D. Strube, J. Torrence, E. Castelli, G. Gagliardi, N. Margoni, M. Morandin, M. Posocco, M. Rotondo, M. Simonetto, F. Stroili, R. Voci, C. del Amo Sanchez, P. Ben-Haim, E. Briand, H. Calderini, G. Chauveau, J. Hamon, O. Leruste, Ph. Ocariz, J. Perez, A. Prendki, J. Sitt, S. Gladney, L. Biasini, M. Manoni, E. Angelini, C. Batignani, G. Bettarini, S. Carpinelli, M. Cervelli, A. Forti, F. Giorgi, M. A. Lusiani, A. Marchiori, G. Morganti, M. Neri, N. Paoloni, E. Rizzo, G. Walsh, J. J. Lopes Pegna, D. Lu, C. Olsen, J. Smith, A. J. S. Telnov, A. V. Anulli, F. Baracchini, E. Cavoto, G. Faccini, R. Ferrarotto, F. Ferroni, F. Gaspero, M. Jackson, P. D. Li Gioi, L. Mazzoni, M. A. Morganti, S. Piredda, G. Renga, F. Voena, C. Ebert, M. Hartmann, T. Schroeder, H. Waldi, R. Adye, T. Franek, B. Olaiya, E. O. Wilson, F. F. Emery, S. Escalier, M. Esteve, L. Hamel de Monchenault, G. Kozanecki, W. Vasseur, G. Yeche, Ch. Zito, M. Chen, X. R. Liu, H. Park, W. Purohit, M. V. White, R. M. Wilson, J. R. Allen, M. T. Aston, D. Bartoldus, R. Benitez, J. F. Cenci, R. Coleman, J. P. Convery, M. R. Dingfelder, J. C. Dorfan, J. Dubois-Felsmann, G. P. Dunwoodie, W. Field, R. C. Gabareen, A. M. Graham, M. T. Grenier, P. Hast, C. Innes, W. R. Kaminski, J. Kelsey, M. H. Kim, H. Kim, P. Kocian, M. L. Leith, D. W. G. S. Li, S. Lindquist, B. Luitz, S. Luth, V. Lynch, H. L. MacFarlane, D. B. Marsiske, H. Messner, R. Muller, D. R. Neal, H. Nelson, S. O'Grady, C. P. Ofte, I. Perl, M. Ratcliff, B. N. Roodman, A. Salnikov, A. A. Schindler, R. H. Schwiening, J. Snyder, A. Su, D. Sullivan, M. K. Suzuki, K. Swain, S. K. Thompson, J. M. Va'vra, J. Wagner, A. P. Weaver, M. West, C. A. Wisniewski, W. J. Wittgen, M. Wright, D. H. Wulsin, H. W. Yarritu, A. K. Yi, K. Young, C. C. Ziegler, V. Burchat, P. R. Edwards, A. J. Miyashita, T. S. Ahmed, S. Alam, M. S. Ernst, J. A. Pan, B. Saeed, M. A. Zain, S. B. Spanier, S. M. Wogsland, B. J. Eckmann, R. Ritchie, J. L. Ruland, A. M. Schilling, C. J. Schwitters, R. F. Drummond, B. W. Izen, J. M. Lou, X. C. Bianchi, F. Gamba, D. Pelliccioni, M. Bomben, M. Bosisio, L. Cartaro, C. Della Ricca, G. Lanceri, L. Vitale, L. Azzolini, V. Lopez-March, N. Martinez-Vidal, F. Milanes, D. A. Oyanguren, A. Albert, J. Banerjee, Sw. Bhuyan, B. Choi, H. H. F. Hamano, K. Kowalewski, R. Lewczuk, M. J. Nugent, I. M. Roney, J. M. Sobie, R. J. Gershon, T. J. Harrison, P. F. Ilic, J. Latham, T. E. Mohanty, G. B. Pennington, M. R. Band, H. R. Chen, X. Dasu, S. Flood, K. T. Pan, Y. Prepost, R. Vuosalo, C. O. Wu, S. L. CA BaBar Collaboration TI Dalitz plot analysis of D-s(+)->pi(+)pi(-)pi(+) SO PHYSICAL REVIEW D LA English DT Article ID PI(-)PI(+)PI(+) DECAY; MESONS; D-S(+); D+ AB A Dalitz plot analysis of approximately 13 000 D-s(+) decays to pi(+)pi(-)pi(+) has been performed. The analysis uses a 384 fb(-1) data sample recorded by the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring running at center of mass energies near 10.6 GeV. Amplitudes and phases of the intermediate resonances which contribute to this final state are measured. A high precision measurement of the ratio of branching fractions is performed: B(D-s(+)->pi(+)pi(-)pi(+))/B(D-s(+)-> K+K-pi(+))=0.199 +/- 0.004 +/- 0.009. Using a model-independent partial wave analysis, the amplitude and phase of the S wave have been measured. C1 [Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.] CNRS, IN2P3, Phys Particules Lab, F-74941 Annecy Le Vieux, France. [Garra Tico, J.; Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. [Lopez, L.; Palano, A.; Pappagallo, M.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Lopez, L.; Palano, A.; Pappagallo, M.] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy. [Eigen, G.; Stugu, B.; Sun, L.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway. [Abrams, G. S.; Battaglia, M.; Brown, D. N.; Jacobsen, R. G.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Osipenkov, I. L.; Ronan, M. T.; Tackmann, K.; Tanabe, T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Koch, H.; Schroeder, T.] Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany. [Asgeirsson, D. J.; Fulsom, B. G.; Hearty, C.; Mattison, T. S.; McKenna, J. A.] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada. [Barrett, M.; Khan, A.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Blinov, V. E.; Bukin, A. D.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu. I.; Solodov, E. P.; Todyshev, K. Yu.] Budker Inst Nucl Phys, Novosibirsk 630090, Russia. [Bondioli, M.; Curry, S.; Eschrich, I.; Kirkby, D.; Lankford, A. J.; Lund, P.; Mandelkern, M.; Martin, E. C.; Stoker, D. P.] Univ Calif Irvine, Irvine, CA 92697 USA. [Abachi, S.; Buchanan, C.] Univ Calif Los Angeles, Los Angeles, CA 90024 USA. [Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.; Yasin, Z.; Zhang, L.] Univ Calif Riverside, Riverside, CA 92521 USA. [Sharma, V.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Mazur, M. A.; Richman, J. D.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Beck, T. W.; Eisner, A. M.; Flacco, C. J.; Heusch, C. A.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.; Wilson, M. G.; Winstrom, L. O.] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA. [Cheng, C. H.; Doll, D. A.; Echenard, B.; Fang, F.; Hitlin, D. G.; Narsky, I.; Piatenko, T.; Porter, F. C.] CALTECH, Pasadena, CA 91125 USA. [Andreassen, R.; Mancinelli, G.; Meadows, B. T.; Mishra, K.; Sokoloff, M. D.] Univ Cincinnati, Cincinnati, OH 45221 USA. [Bloom, P. C.; Ford, W. T.; Gaz, A.; Hirschauer, J. F.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA. [Ayad, R.; Soffer, A.; Toki, W. H.; Wilson, R. J.] Colorado State Univ, Ft Collins, CO 80523 USA. 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[Baldini-Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Pacetti, S.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Buzzo, A.; Contri, R.; Lo Vetere, M.; Macri, M. M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Santroni, A.; Tosi, S.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Contri, R.; Lo Vetere, M.; Monge, M. R.; Patrignani, C.; Santroni, A.; Tosi, S.] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy. [Chaisanguanthum, K. S.; Morii, M.] Harvard Univ, Cambridge, MA 02138 USA. [Adametz, A.; Marks, J.; Schenk, S.; Uwer, U.] Univ Heidelberg, Inst Phys, D-69120 Heidelberg, Germany. [Bernlochner, F. U.; Klose, V.; Lacker, H. M.] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany. [Behera, P. K.; Chai, X.; Charles, M. J.; Mallik, U.] Univ Iowa, Iowa City, IA 52242 USA. [Cochran, J.; Crawley, H. B.; Dong, L.; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Rubin, A. 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RI dong, liaoyuan/A-5093-2015; Rizzo, Giuliana/A-8516-2015; 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; Lusiani, Alberto/A-3329-2016; Morandin, Mauro/A-3308-2016; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; White, Ryan/E-2979-2015; Patrignani, Claudia/C-5223-2009; Neri, Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Della Ricca, Giuseppe/B-6826-2013; Negrini, Matteo/C-8906-2014; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; OI Bettarini, Stefano/0000-0001-7742-2998; Cibinetto, Gianluigi/0000-0002-3491-6231; dong, liaoyuan/0000-0002-4773-5050; Pacetti, Simone/0000-0002-6385-3508; Rizzo, Giuliana/0000-0003-1788-2866; Faccini, Riccardo/0000-0003-2613-5141; 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; Lusiani, Alberto/0000-0002-6876-3288; Morandin, Mauro/0000-0003-4708-4240; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Paoloni, Eugenio/0000-0001-5969-8712; White, Ryan/0000-0003-3589-5900; Patrignani, Claudia/0000-0002-5882-1747; Neri, Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Della Ricca, Giuseppe/0000-0003-2831-6982; Negrini, Matteo/0000-0003-0101-6963; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; Raven, Gerhard/0000-0002-2897-5323 NR 18 TC 28 Z9 28 U1 0 U2 6 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. 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D PD FEB PY 2009 VL 79 IS 3 AR 032003 DI 10.1103/PhysRevD.79.032003 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600009 ER PT J AU Aubert, B Bona, M Karyotakis, Y Lees, JP Poireau, V Prencipe, E Prudent, X Tisserand, V Tico, JG Grauges, E Lopez, L Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Abrams, GS Battaglia, M Brown, DN Cahn, RN Jacobsen, RG Kerth, LT Kolomensky, YG Lynch, G Osipenkov, IL Ronan, MT Tackmann, K Tanabe, T Hawkes, CM Soni, N Watson, AT Koch, H Schroeder, T Walker, D Asgeirsson, DJ Fulsom, BG Hearty, C Mattison, TS McKenna, JA Barrett, M Khan, A Blinov, VE Bukin, AD Buzykaev, AR Druzhinin, VP Golubev, VB Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Bondioli, M Curry, S Eschrich, I Kirkby, D Lankford, AJ Lund, P Mandelkern, M Martin, EC Stoker, DP Abachi, S Buchanan, C Gary, JW Liu, F Long, O Shen, BC Vitug, GM Yasin, Z Zhang, L Sharma, V Campagnari, C Hong, TM Kovalskyi, D Mazur, MA Richman, JD Beck, TW Eisner, AM Flacco, CJ Heusch, CA Kroseberg, J Lockman, WS Martinez, AJ Schalk, T Schumm, BA Seiden, A Wilson, MG Winstrom, LO Cheng, CH Doll, DA Echenard, B Fang, F Hitlin, DG Narsky, I Piatenko, T Porter, FC Andreassen, R Mancinelli, G Meadows, BT Mishra, K Sokoloff, MD Bloom, PC Ford, WT Gaz, A Hirschauer, JF Nagel, M Nauenberg, U Smith, JG Ulmer, KA Wagner, SR Ayad, R Soffer, A Toki, WH Wilson, RJ Altenburg, DD Feltresi, E Hauke, A Jasper, H Karbach, M Merkel, J Petzold, A Spaan, B Wacker, K Kobel, MJ Mader, WF Nogowski, R Schubert, KR Schwierz, R Volk, A Bernard, D Bonneaud, GR Latour, E Verderi, M Clark, PJ Playfer, S Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Franchini, P Luppi, E Negrini, M Petrella, A Piemontese, L Santoro, V Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Buzzo, A Contri, R Lo Vetere, M Macri, MM Monge, MR 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CA BaBar Collaboration TI Measurements of time-dependent CP asymmetries in B-0 -> D-(*()+) D-(*()-) decays SO PHYSICAL REVIEW D LA English DT Article ID VIOLATING ASYMMETRIES; PARTICLE PHYSICS; SEARCH AB We present new measurements of time-dependent CP asymmetries for B-0 -> D-(*()+) D-(*()-) decays using (467 +/- 5) X 10(6) B (B) over bar pairs collected with the BABAR detector located at the PEP-II B Factory at the Stanford Linear Accelerator Center. We determine the CP-odd fraction of the B-0 -> D-(*()+) D-(*()-) decays to be R-perpendicular to = 0.158 +/- 0.028 +/- 0.006 and find CP asymmetry parameters S+ = -0.76 +/- 0.16 +/- 0.04 and C+ = +0.00 +/- 0.12 +/- 0.02 for the CP-even component of this decay and S-perpendicular to = -1.80 +/- 0.70 +/- 0.16 and C-perpendicular to = +0.41 +/- 0.49 +/- 0.08 for the CP-odd component. We measure S = -0.63 +/- 0.36 +/- 0.05 and C = -0.07 +/- 0.23 +/- 0.03 for B-0 -> D+D-, S = -0.62 +/- 0.21 +/- 0.03 and C = +0.08 +/- 0.17 +/- 0.04 for B-0 -> D*D-+(-), and S = -0.73 +/- 0.23 +/- 0.05 and C = +0.00 +/- 0.17 +/- 0.03 for B-0 -> D+D*(-). For the B-0 -> D*(+/-) D-+/- decays, we also determine the CP-violating asymmetry (A) over bar = +0.008 +/- 0.048 +/- 0.013. In each case, the first uncertainty is statistical and the second is systematic. The measured values for the asymmetries are all consistent with the standard model. C1 [Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.] CNRS, IN2P3, Phys Particules Lab, F-74941 Annecy Le Vieux, France. [Tico, J. Garra; Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. [Lopez, L.; Palano, A.; Pappagallo, M.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Lopez, L.; Palano, A.; Pappagallo, M.] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy. 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[Eckmann, R.; Ritchie, J. L.; Ruland, A. M.; Schilling, C. J.; Schwitters, R. F.] Univ Texas Austin, Austin, TX 78712 USA. [Drummond, B. W.; Izen, J. M.; Lou, X. C.] Univ Texas Dallas, Richardson, TX 75083 USA. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Univ Torino, Dipartimento Fis Sperimentale, I-10125 Turin, Italy. [Bomben, M.; Bosisio, L.; Cartaro, C.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy. [Bomben, M.; Bosisio, L.; Cartaro, C.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy. [Azzolini, V.; Lopez-March, N.; Martinez-Vidal, F.; Milanes, D. A.; Oyanguren, A.] Univ Valencia, IFIC, CSIC, E-46071 Valencia, Spain. [Albert, J.; Banerjee, Sw.; Bhuyan, B.; Choi, H. H. F.; Hamano, K.; Kowalewski, R.; Lewczuk, M. J.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Ilic, J.; Latham, T. E.; Mohanty, G. B.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Chen, X.; Dasu, S.; Flood, K. T.; Pan, Y.; Pierini, M.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.] Univ Savoie, F-74941 Annecy Le Vieux, France. [Hawkes, C. M.; Soni, N.; Watson, A. T.] Univ Birmingham, Birmingham B15 2TT, W Midlands, England. [Walker, D.] Univ Bristol, Bristol BS8 1TL, Avon, England. [Bard, D. J.; Dauncey, P. D.; Nash, J. A.; Tibbetts, M.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Arnaud, N.; Bequilleux, J.; D'Orazio, A.; Davier, M.; da Costa, J. Firmino; Grosdidier, G.; Hoecker, A.; Lepeltier, V.; Le Diberder, F.; Lutz, A. M.; Pruvot, S.; Roudeau, P.; Schune, M. H.; Serrano, J.; Sordini, V.; Stocchi, A.; Wormser, G.] Univ Paris 11, Ctr Sci Orsay, F-91898 Orsay, France. [Bevan, A. J.; Clarke, C. K.; George, K. A.; Di Lodovico, F.; Sacco, R.; Sigamani, M.] Univ London, London E1 4NS, England. [Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Chia, Y. M.; Edgar, C. L.; Jackson, G.; Lafferty, G. D.; West, T. J.; Yi, J. I.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Adye, T.; Franek, B.; Olaiya, E. O.; Wilson, F. F.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. RP Aubert, B (reprint author), CNRS, IN2P3, Phys Particules Lab, F-74941 Annecy Le Vieux, France. RI dong, liaoyuan/A-5093-2015; Rizzo, Giuliana/A-8516-2015; 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; Morandin, Mauro/A-3308-2016; Lusiani, Alberto/A-3329-2016; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; Negrini, Matteo/C-8906-2014; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Patrignani, Claudia/C-5223-2009; Neri, Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Della Ricca, Giuseppe/B-6826-2013 OI Faccini, Riccardo/0000-0003-2613-5141; Cavoto, Gianluca/0000-0003-2161-918X; Raven, Gerhard/0000-0002-2897-5323; Bettarini, Stefano/0000-0001-7742-2998; Cibinetto, Gianluigi/0000-0002-3491-6231; dong, liaoyuan/0000-0002-4773-5050; Pacetti, Simone/0000-0002-6385-3508; Covarelli, Roberto/0000-0003-1216-5235; Rizzo, Giuliana/0000-0003-1788-2866; 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; Morandin, Mauro/0000-0003-4708-4240; Lusiani, Alberto/0000-0002-6876-3288; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Paoloni, Eugenio/0000-0001-5969-8712; Negrini, Matteo/0000-0003-0101-6963; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; Patrignani, Claudia/0000-0002-5882-1747; Neri, Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Della Ricca, Giuseppe/0000-0003-2831-6982 FU SLAC; U. S. Department of Energy and 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 and Deutsche Forschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental Research on Matter (The Netherlands); Research Council of Norway, the Ministry of Education and Science of the Russian Federation; Ministerio de Educacion y Ciencia (Spain); Science and Technology Facilities Council (United Kingdom); Marie-Curie IEF program (European Union); A.P. Sloan Foundation 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 Educacion y Ciencia (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. NR 33 TC 14 Z9 14 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB PY 2009 VL 79 IS 3 AR 032002 DI 10.1103/PhysRevD.79.032002 PG 13 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600008 ER PT J AU Aubert, B Bona, M Karyotakis, Y Lees, JP Poireau, V Prudent, X Tisserand, V Zghiche, A Tico, JG Grauges, E Lopez, L Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Abrams, GS Battaglia, M Brown, DN Button-Shafer, J Cahn, RN Jacobsen, RG Kadyk, JA Kerth, LT Kolomensky, YG Kukartsev, G Lynch, G Osipenkov, IL Ronan, MT Tackmann, K Tanabe, T Wenzel, WA Hawkes, CM Soni, N Watson, AT Koch, H Schroeder, T Walker, D Asgeirsson, DJ Cuhadar-Donszelmann, T Fulsom, BG Hearty, C Mattison, TS McKenna, JA Barrett, M Khan, A Saleem, M Teodorescu, L Blinov, VE Bukin, AD Buzykaev, AR Druzhinin, VP Golubev, VB Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Bondioli, M Curry, S Eschrich, I Kirkby, D Lankford, AJ Lund, P Mandelkern, M Martin, EC Stoker, DP Abachi, S Buchanan, C Gary, JW Liu, F Long, O Shen, BC Vitug, GM Yasin, Z Zhang, L Sharma, V Campagnari, C Hong, TM Kovalskyi, D Mazur, MA Richman, JD Beck, TW Eisner, AM Flacco, CJ Heusch, CA Kroseberg, J Lockman, WS Schalk, T Schumm, BA Seiden, A Wang, L Wilson, MG Winstrom, LO Cheng, CH Doll, DA Echenard, B Fang, F Hitlin, DG Narsky, I Piatenko, T Porter, FC Andreassen, R Mancinelli, G Meadows, BT Mishra, K Sokoloff, MD Blanc, F Bloom, PC Ford, WT Hirschauer, JF Kreisel, A Nagel, M Nauenberg, U Olivas, A Smith, JG Ulmer, KA Wagner, SR Ayad, R Gabareen, AM Soffer, A Toki, WH Wilson, RJ Altenburg, DD Feltresi, E Hauke, A Jasper, H Karbach, M Merkel, J Petzold, A Spaan, B Wacker, K Klose, V Kobel, MJ Lacker, HM Mader, WF Nogowski, R Schubert, J Schubert, KR Schwierz, R Sundermann, JE Volk, A Bernard, D Bonneaud, GR Latour, E Thiebaux, C Verderi, M Clark, PJ Gradl, W Playfer, S Robertson, AI Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Franchini, P Luppi, E Negrini, M Petrella, A Piemontese, L Prencipe, E Santoro, V Anulli, F Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Buzzo, A Contri, R Lo Vetere, M Macri, MM Monge, MR Passaggio, S Patrignani, C Robutti, E Santroni, A Tosi, S Chaisanguanthum, KS Morii, M Dubitzky, RS Marks, J Schenk, S Uwer, U Bard, DJ Dauncey, PD Nash, JA Vazquez, WP Tibbetts, M Behera, PK Chai, X Charles, MJ Mallik, U Cochran, J Crawley, HB Dong, L Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gao, YY Gritsan, AV Guo, ZJ Lae, CK Denig, AG Fritsch, M Schott, G Arnaud, N Bequilleux, J D'Orazio, A Davier, M da Costa, JF Grosdidier, G Hocker, A Lepeltier, V Le Diberder, F Lutz, AM Pruvot, S Roudeau, P Schune, MH Serrano, J Sordini, V Stocchi, A Wang, WF Wormser, G Lange, DJ Wright, DM Bingham, I Burke, JP Chavez, CA Fry, JR Gabathuler, E Gamet, R Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ George, KA Di Lodovico, F Sacco, R Sigamani, M Cowan, G Flaecher, HU Hopkins, DA Paramesvaran, S Salvatore, F Wren, AC Brown, DN Davis, CL Alwyn, KE Barlow, NR Barlow, RJ Chia, YM Edgar, CL Lafferty, GD West, TJ Yi, JI Anderson, J Chen, C Jawahery, A Roberts, DA Simi, G Tuggle, JM Dallapiccola, C Hertzbach, SS Li, X Salvati, E Saremi, S Cowan, R Dujmic, D Fisher, PH Koeneke, K Sciolla, G Spitznagel, M Taylor, F Yamamoto, RK Zhao, M Mclachlin, SE Patel, PM Robertson, SH Lazzaro, A Lombardo, V Palombo, F Bauer, JM Cremaldi, L Eschenburg, V Godang, R Kroeger, R Sanders, DA Summers, DJ Zhao, HW Brunet, S Cote, D Simard, M Taras, P Viaud, FB Nicholson, H De Nardo, G Lista, L Monorchio, D Sciacca, C Baak, MA Raven, G Snoek, HL Jessop, CP Knoepfel, KJ LoSecco, JM Benelli, G Corwin, LA Honscheid, K Kagan, H Kass, R Morris, JP Rahimi, AM Regensburger, JJ Sekula, SJ Wong, QK Blount, NL Brau, J Frey, R Igonkina, O Kolb, JA Lu, M Rahmat, R Sinev, NB Strom, D Strube, J Torrence, E Castelli, G Gagliardi, N Gaz, A Margoni, M Morandin, M Posocco, M Rotondo, M Simonetto, F Stroili, R Voci, C Sanchez, PD Ben-Haim, E Briand, H Calderini, G Chauveau, J David, P Del Buono, L Hamon, O Leruste, P Ocariz, J Perez, A Prendki, J Gladney, L Biasini, M Covarelli, R Manoni, E Angelini, C Batignani, G Bettarini, S Carpinelli, M Cervelli, A Forti, F Giorgi, MA Lusiani, A Marchiori, G Morganti, M Neri, N Paoloni, E Rizzo, G Walsh, JJ Biesiada, J Lau, YP Pegna, DL Lu, C Olsen, J Smith, AJS Telnov, AV Baracchini, E Cavoto, G del Re, D Di Marco, E Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Jackson, PD Gioi, LL Mazzoni, MA Morganti, S Piredda, G Polci, F Renga, F Voena, C Ebert, M Hartmann, T Schroder, H Waldi, R Adye, T Franek, B Olaiya, EO Roethel, W Wilson, FF Emery, S Escalier, M Esteve, L Gaidot, A Ganzhur, SF de Monchenault, GH Kozanecki, W Vasseur, G Yeche, C Zito, M Chen, XR Liu, H Park, W Purohit, MV White, RM Wilson, JR Allen, MT Aston, D Bartoldus, R Bechtle, P Benitez, JF Cenci, R Coleman, JP Convery, MR Dingfelder, JC Dorfan, J 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J Banerjee, S Bhuyan, B Choi, HHF Hamano, K Kowalewski, R Lewczuk, MJ Nugent, IM Roney, JM Sobie, RJ Gershon, TJ Harrison, PF Ilic, J Latham, TE Mohanty, GB Band, HR Chen, X Dasu, S Flood, KT Pan, Y Pierini, M Prepost, R Vuosalo, CO Wu, SL AF Aubert, B. Bona, M. Karyotakis, Y. Lees, J. P. Poireau, V. Prudent, X. Tisserand, V. Zghiche, A. Garra Tico, J. Grauges, E. Lopez, L. Palano, A. Pappagallo, M. Eigen, G. Stugu, B. Sun, L. Abrams, G. S. Battaglia, M. Brown, D. N. Button-Shafer, J. Cahn, R. N. Jacobsen, R. G. Kadyk, J. A. Kerth, L. T. Kolomensky, Yu. G. Kukartsev, G. Lynch, G. Osipenkov, I. L. Ronan, M. T. Tackmann, K. Tanabe, T. Wenzel, W. A. Hawkes, C. M. Soni, N. Watson, A. T. Koch, H. Schroeder, T. Walker, D. Asgeirsson, D. J. Cuhadar-Donszelmann, T. Fulsom, B. G. Hearty, C. Mattison, T. S. McKenna, J. A. Barrett, M. Khan, A. Saleem, M. Teodorescu, L. Blinov, V. E. Bukin, A. D. Buzykaev, A. R. Druzhinin, V. P. Golubev, V. B. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Bondioli, M. Curry, S. Eschrich, I. Kirkby, D. Lankford, A. J. Lund, P. Mandelkern, M. Martin, E. C. Stoker, D. P. Abachi, S. Buchanan, C. Gary, J. W. Liu, F. Long, O. Shen, B. C. Vitug, G. M. Yasin, Z. Zhang, L. Sharma, V. 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H. Schwiening, J. Snyder, A. Su, D. Sullivan, M. K. Suzuki, K. Swain, S. K. Thompson, J. M. Va'vra, J. Wagner, A. P. Weaver, M. West, C. A. Wisniewski, W. J. Wittgen, M. Wright, D. H. Wulsin, H. W. Yarritu, A. K. Yi, K. Young, C. C. Ziegler, V. Burchat, P. R. Edwards, A. J. Majewski, S. A. Miyashita, T. S. Petersen, B. A. Wilden, L. Ahmed, S. Alam, M. S. Bula, R. Ernst, J. A. Pan, B. Saeed, M. A. Zain, S. B. Spanier, S. M. Wogsland, B. J. Eckmann, R. Ritchie, J. L. Ruland, A. M. Schilling, C. J. Schwitters, R. F. Drummond, B. W. Izen, J. M. Lou, X. C. Ye, S. Bianchi, F. Gamba, D. Pelliccioni, M. Bomben, M. Bosisio, L. Cartaro, C. Della Ricca, G. Lanceri, L. Vitale, L. Azzolini, V. Lopez-March, N. Martinez-Vidal, F. Milanes, D. A. Oyanguren, A. Albert, J. Banerjee, Sw. Bhuyan, B. Choi, H. H. F. Hamano, K. Kowalewski, R. Lewczuk, M. J. Nugent, I. M. Roney, J. M. Sobie, R. J. Gershon, T. J. Harrison, P. F. Ilic, J. Latham, T. E. Mohanty, G. B. Band, H. R. Chen, X. Dasu, S. Flood, K. T. Pan, Y. Pierini, M. Prepost, R. Vuosalo, C. O. Wu, S. L. CA BaBar Collaboration TI Angular distributions in the decay B -> K*l(+)l(-) SO PHYSICAL REVIEW D LA English DT Article AB We use a sample of 384 X 10(6) B (B) over bar events collected with the BABAR detector at the PEP-II e(+)e(-) collider to study angular distributions in the rare decays B -> K(*)l(+)l(-), where l(+)l(-) is either e(+)e(-) or mu(+)mu(-). For low dilepton invariant masses, m(ee) < 2.5 GeV/c(2), we measure a lepton forward-backward asymmetry A(FB) = 0.24(-0.23)(+0.18) +/- 0.05 and K* longitudinal polarization F-L = 0.35 +/- 0.16 +/- 0.04. For m(ee) > 3.2 GeV/c(2), we measure A(FB) = 0.76(-0.32)(+0.52) +/- 0.07 F-L = 0.71(-0.22)(+0.20) +/- 0.04. C1 [Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A.] CNRS, IN2P3, Phys Particules Lab, F-74941 Annecy Le Vieux, France. [Garra Tico, J.; Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. 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[Emery, S.; Escalier, M.; Esteve, L.; Gaidot, A.; Ganzhur, S. F.; de Monchenault, G. Hamel; Kozanecki, W.; Vasseur, G.; Yeche, Ch.; Zito, M.] CEA Saclay, DSM Dapnia, F-91191 Gif Sur Yvette, France. [Chen, X. R.; Liu, H.; Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.] Univ S Carolina, Columbia, SC 29208 USA. [Allen, M. T.; Aston, D.; Bartoldus, R.; Bechtle, P.; Benitez, J. F.; Cenci, R.; Coleman, J. P.; Convery, M. R.; Dingfelder, J. C.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Gowdy, S. J.; Kocian, M. L.; Leith, D. W. G. S.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.; MacFarlane, D. B.; Marsiske, H.; Messner, R.; Muller, D. R.; Neal, H.; Nelson, S.; O'Grady, C. P.; Ofte, I.; Perazzo, A.; Perl, M.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Schindler, R. H.; Schwiening, J.; Snyder, A.; Su, D.; Sullivan, M. K.; Suzuki, K.; Swain, S. K.; Thompson, J. M.; Va'vra, J.; Wagner, A. P.; Weaver, M.; West, C. A.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Yarritu, A. K.; Yi, K.; Young, C. C.; Ziegler, V.] Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA. [Burchat, P. R.; Edwards, A. J.; Majewski, S. A.; Miyashita, T. S.; Petersen, B. A.; Wilden, L.] Stanford Univ, Stanford, CA 94305 USA. [Ahmed, S.; Alam, M. S.; Bula, R.; Ernst, J. A.; Pan, B.; Saeed, M. A.; Zain, S. B.] SUNY Albany, Albany, NY 12222 USA. [Spanier, S. M.; Wogsland, B. J.] Univ Tennessee, Knoxville, TN 37996 USA. [Eckmann, R.; Ritchie, J. L.; Ruland, A. M.; Schilling, C. J.; Schwitters, R. F.] Univ Texas Austin, Austin, TX 78712 USA. [Drummond, B. W.; Izen, J. M.; Lou, X. C.; Ye, S.] Univ Texas Dallas, Richardson, TX 75083 USA. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Univ Turin, Ist Nazl Fis Nucl, I-10125 Turin, Italy. [Bomben, M.; Bosisio, L.; Cartaro, C.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy. [Bomben, M.; Bosisio, L.; Cartaro, C.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Univ Trieste, Ist Nazl Fis Nucl, I-34127 Trieste, Italy. [Azzolini, V.; Lopez-March, N.; Martinez-Vidal, F.; Milanes, D. A.; Oyanguren, A.] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain. [Albert, J.; Banerjee, Sw.; Bhuyan, B.; Choi, H. H. F.; Hamano, K.; Kowalewski, R.; Lewczuk, M. J.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Ilic, J.; Latham, T. E.; Mohanty, G. B.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Chen, X.; Dasu, S.; Flood, K. T.; Pan, Y.; Pierini, M.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. RP Aubert, B (reprint author), CNRS, IN2P3, Phys Particules Lab, F-74941 Annecy Le Vieux, France. RI dong, liaoyuan/A-5093-2015; Rizzo, Giuliana/A-8516-2015; Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Lusiani, Alberto/A-3329-2016; Morandin, Mauro/A-3308-2016; Della Ricca, Giuseppe/B-6826-2013; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Negrini, Matteo/C-8906-2014; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Calabrese, Roberto/G-4405-2015; Patrignani, Claudia/C-5223-2009; Neri, Nicola/G-3991-2012; OI Bettarini, Stefano/0000-0001-7742-2998; Cibinetto, Gianluigi/0000-0002-3491-6231; dong, liaoyuan/0000-0002-4773-5050; Pacetti, Simone/0000-0002-6385-3508; Covarelli, Roberto/0000-0003-1216-5235; Rizzo, Giuliana/0000-0003-1788-2866; 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; Lusiani, Alberto/0000-0002-6876-3288; Morandin, Mauro/0000-0003-4708-4240; Della Ricca, Giuseppe/0000-0003-2831-6982; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Paoloni, Eugenio/0000-0001-5969-8712; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Negrini, Matteo/0000-0003-0101-6963; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; Calabrese, Roberto/0000-0002-1354-5400; Patrignani, Claudia/0000-0002-5882-1747; Neri, Nicola/0000-0002-6106-3756; Faccini, Riccardo/0000-0003-2613-5141; Cavoto, Gianluca/0000-0003-2161-918X; Raven, Gerhard/0000-0002-2897-5323 FU DOE and NSF (USA); NSERC (Canada); CEA and CNRS-IN2P3 (France); BMBF and DFG (Germany); INFN (Italy); FOM (The Netherlands); NFR (Norway); MES (Russia); MEC (Spain); STFC (United Kingdom); Marie Curie EIF (European Union); A. P. Sloan Foundation FX We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation. NR 29 TC 50 Z9 50 U1 0 U2 10 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB PY 2009 VL 79 IS 3 AR 031102 DI 10.1103/PhysRevD.79.031102 PG 8 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600002 ER PT J AU Bacchetta, A Ceccopieri, FA Mukherjee, A Radici, M AF Bacchetta, Alessandro Ceccopieri, Federico Alberto Mukherjee, Asmita Radici, Marco TI Asymmetries involving dihadron fragmentation functions: From DIS to e(+)e(-) annihilation SO PHYSICAL REVIEW D LA English DT Article ID INCLUSIVE PRODUCTION; TRANSVERSE-MOMENTUM; HADRON-PRODUCTION; DECAYS; JETS; COLLISIONS; DENSITIES; EVOLUTION; COLLINS; QCD AB Using a model calculation of dihadron fragmentation functions, we fit the spin asymmetry recently extracted by HERMES for the semi-inclusive pion pair production in deep-inelastic scattering on a transversely polarized proton target. By evolving the obtained dihadron fragmentation functions, we make predictions for the correlation of the angular distributions of two pion pairs produced in electron-positron annihilations at BELLE kinematics. Our study shows that the combination of two-hadron inclusive deep-inelastic scattering and electron-positron annihilation measurements can provide a valid alternative to Collins effect for the extraction of the quark transversity distribution in the nucleon. C1 [Bacchetta, Alessandro] Jefferson Lab, Ctr Theory, Newport News, VA 23606 USA. [Ceccopieri, Federico Alberto] Univ Parma, Dipartimento Fis, I-43100 Parma, Italy. [Ceccopieri, Federico Alberto] Ist Nazl Fis Nucl, Grp Collegato Parma, I-43100 Parma, Italy. [Mukherjee, Asmita] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India. [Radici, Marco] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. RP Bacchetta, A (reprint author), Jefferson Lab, Ctr Theory, 12000 Jefferson Ave, Newport News, VA 23606 USA. EM alessandro.bacchetta@jlab.org; federicoalberto.ceccopieri@fis.unipr.it; asmita@phy.iitb.ac.in; marco.radici@pv.infn.it RI Bacchetta, Alessandro/F-3199-2012; OI Bacchetta, Alessandro/0000-0002-8824-8355; Radici, Marco/0000-0002-4542-9797 FU European Integrated Infrastructure Initiative in Hadronic Physics [RII3-CT-2004-506078]; DOE [DE-AC05-06OR23177] FX This work is part of the European Integrated Infrastructure Initiative in Hadronic Physics project under Contract No. RII3-CT-2004-506078. This work was supported by DOE Contract No. DE-AC05-06OR23177, under which Jefferson Science Associates, LLC, operates Jefferson Laboratory. A. M. acknowledges support from BRNS, government of India, and hospitality of INFN Sezione di Pavia (Italy) and Jefferson Laboratory (Virginia, USA), where part of this work was done. NR 51 TC 17 Z9 17 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 FEB PY 2009 VL 79 IS 3 AR 034029 DI 10.1103/PhysRevD.79.034029 PG 10 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600053 ER PT J AU Balitsky, I Chirilli, GA AF Balitsky, Ian Chirilli, Giovanni A. TI Conformal kernel for the next-to-leading-order BFKL equation in N=4 super Yang-Mills theory SO PHYSICAL REVIEW D LA English DT Article ID SMALL-X EVOLUTION AB Using the requirement of Mobius invariance of N=4 super Yang-Mills amplitudes in the Regge limit, we restore the explicit form of the conformal next-to-leading-order Balitsky-Fadin-Kuraev-Lipatov (BFKL) kernel out of the eigenvalues known from the forward next-to-leading-order BFKL result. C1 [Balitsky, Ian] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. Jefferson Lab, Theory Grp, Newport News, VA 23606 USA. RP Balitsky, I (reprint author), Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. EM balitsky@jlab.org; chirilli@jlab.org FU DOE [DE-FG02-97ER41028]; [DE-AC05-06OR23177] FX The authors are grateful to L. N. Lipatov and J. Penedones for valuable discussions. This work was supported by Contract No. DE-AC05-06OR23177 under which the Jefferson Science Associates, LLC operate the Thomas Jefferson National Accelerator Facility. G. A. C.' s work was supported by DOE grant DE-FG02-97ER41028. NR 22 TC 19 Z9 19 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 3 AR 031502 DI 10.1103/PhysRevD.79.031502 PG 5 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600004 ER PT J AU Boito, DR Dedonder, JP El-Bennich, B Leitner, O Loiseau, B AF Boito, D. R. Dedonder, J-P. El-Bennich, B. Leitner, O. Loiseau, B. TI Scalar resonances in a unitary pi pi S-wave model for D+->pi(+)pi(-)pi(+) SO PHYSICAL REVIEW D LA English DT Article ID CHARM MESON DECAYS; FINAL-STATE INTERACTIONS; SEMILEPTONIC DECAYS; HEAVY; QUARK; D+; SCATTERING; SYMMETRY; EQUATION; MATRIX AB We propose a model for D+->pi(+)pi(-)pi(+) decays following experimental results which indicate that the two-pion interaction in the S wave is dominated by the scalar resonances f(0)(600)/sigma and f(0)(980). The weak decay amplitude for D+-> R pi(+), where R is a resonance that subsequently decays into pi(+)pi(-), is constructed in a factorization approach. In the S wave, we implement the strong decay R ->pi(+)pi(-) by means of a scalar form factor. This provides a unitary description of the pion-pion interaction in the entire kinematically allowed mass range m(pi pi)(2) from threshold to about 3 GeV2. In order to reproduce the experimental Dalitz plot for D+->pi(+)pi(-)pi(+), we include contributions beyond the S wave. For the P wave, dominated by the rho(770)(0), we use a Breit-Wigner description. Higher waves are accounted for by using the usual isobar prescription for the f(2)(1270) and rho(1450)(0). The major achievement is a good reproduction of the experimental m(pi pi)(2) distribution, and of the partial as well as the total D+->pi(+)pi(-)pi(+) branching ratios. Our values are generally smaller than the experimental ones. We discuss this shortcoming and, as a by-product, we predict a value for the poorly known D ->sigma transition form factor at q(2)=m pi(2). C1 [Boito, D. R.] Univ Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain. [Boito, D. R.] Univ Autonoma Barcelona, Fis Teor Grp, E-08193 Barcelona, Spain. [Boito, D. R.] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil. [Dedonder, J-P.; El-Bennich, B.; Leitner, O.; Loiseau, B.] Univ Paris 06, Grp Theorie, Lab Phys Nucl & Hautes Energies, CNRS,IN2P3, F-75252 Paris, France. [Dedonder, J-P.; El-Bennich, B.; Leitner, O.; Loiseau, B.] Univ Paris 07, Grp Theorie, Lab Phys Nucl & Hautes Energies, CNRS,IN2P3, F-75252 Paris, France. [El-Bennich, B.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Leitner, O.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. RP Boito, DR (reprint author), Univ Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain. EM boito@ifae.es RI Boito, Diogo/C-2727-2015 FU Department of Energy, Office of Nuclear Physics [DEAC02-06CH11357]; FAPESP [04/11154-0]; FAPESP/CNRS [06/50343-8]; Ministerio de Educacion y Ciencia [FPA2005-02211, ICYT-FEDER-FPA2008-01430]; EU [MRTN-CT-2006-035482]; Spanish Consolider-Ingenio 2010 Program CPAN [CSD2007-00042] FX We are grateful to Robert Kaminski for providing his code to compute the scattering phases of [5]. We also thank A. Furman, M. R. Robilotta and R. Escribano for discussions as well as J.A. Oller and A. dos Reis for email exchanges concerning the fit. D. R. B. thanks the hospitality of LPNHE. This work was supported by the Department of Energy, Office of Nuclear Physics, Contract No. DEAC02-06CH11357, and by the Region Ile-de-France. We also acknowledge partial funding from FAPESP (Brazilian agency) Grant No. 04/11154-0 as well as from a FAPESP/CNRS bilateral grant, No. 06/50343-8. The work by D. R. B. is supported in part by the Ministerio de Educacion y Ciencia under Grants No. FPA2005-02211 (FPI) and No. CICYT-FEDER-FPA2008-01430, the EU Contract No. MRTN-CT-2006-035482, "FLAVIAnet'' and the Spanish Consolider-Ingenio 2010 Program CPAN (CSD2007-00042). NR 52 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 FEB PY 2009 VL 79 IS 3 AR 034020 DI 10.1103/PhysRevD.79.034020 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600044 ER PT J AU Bulava, JM Edwards, RG Engelson, E Foley, J Joo, B Lichtl, A Lin, HW Mathur, N Morningstar, C Richards, DG Wallace, SJ AF Bulava, John M. Edwards, Robert G. Engelson, Eric Foley, Justin Joo, Bylint Lichtl, Adam Lin, Huey-Wen Mathur, Nilmani Morningstar, Colin Richards, David G. Wallace, Stephen J. TI Excited state nucleon spectrum with two flavors of dynamical fermions SO PHYSICAL REVIEW D LA English DT Article ID HYBRID MONTE-CARLO; LATTICE QCD; CONTINUUM-LIMIT; ROPER RESONANCE; IMPROVEMENT; MODEL AB Highly excited states for isospin 1/2 baryons are calculated for the first time using lattice QCD with two flavors of dynamical quarks. Anisotropic lattices are used with two pion masses, m(pi) = 416(36) MeV and 578(29) MeV. The lowest four energies are reported in each of the six irreducible representations of the octahedral group at each pion mass. The lattices used have dimensions 24(3) X 64, spatial lattice spacing a(s) approximate to 0.11 fm, and temporal lattice spacing a(t) = 1/3a(s). Clear evidence is found for a 5/2 state in the pattern of negative-parity excited states. This agrees with the pattern of physical states and spin 5/2 has been realized for the first time on the lattice. C1 [Bulava, John M.; Foley, Justin; Morningstar, Colin] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA. [Edwards, Robert G.; Joo, Bylint; Lin, Huey-Wen; Richards, David G.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Engelson, Eric; Wallace, Stephen J.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA. [Lichtl, Adam] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Mathur, Nilmani] Tata Inst Fundamental Res, Dept Theoret Phys, Mumbai 400005, Maharashtra, India. RP Bulava, JM (reprint author), Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA. EM jbulava@andrew.cmu.edu; edwards@jlab.org; engelson@umd.edu; jfoley@andrew.cmu.edu; bjoo@jlab.org; alichtl@bnl.gov; hwlin@jlab.org; colin_morningstar@cmu.edu; dgr@jlab.org; stevewal@umd.edu RI Morningstar, Colin/N-6925-2014; OI Morningstar, Colin/0000-0002-0607-9923; Bulava, John/0000-0001-9447-8459 FU Office of Science of the Department of Energy [AC05-00OR22725]; National Science Foundation [NSF-PHY-0653315, NSF-PHY-0510020]; Texas Advanced Computing Center (TACC); San Diego Supercomputing Center (Blue Gene); DOE Grant [DE-FG02-93ER-40762]; RIKEN and Brookhaven National Laboratory [DE-AC02-98CH10886]; DOE Contract [DE-AC05-06OR23177]; [DST-SR/S2/RJN-19/2007] FX This work was done using the CHROMA software suite [ 23] on clusters at Jefferson Laboratory using time awarded under the USQCD Initiative. This research used resources of the National Center for Computational Sciences at Oak Ridge National Laboratory, which is supported by the Office of Science of the Department of Energy under Contract No. DE-AC05-00OR22725. In particular, we made use of the Jaguar Cray XT facility, using time allocated through the U. S. DOE INCITE program. This research was supported in part by the National Science Foundation (No. NSF-PHY-0653315 and No. NSF-PHY-0510020) through the San Diego Supercomputing Center (SDSC) and the Texas Advanced Computing Center (TACC). Computational support was provided though Teragrid Resources provided by the San Diego Supercomputing Center (Blue Gene). J.B., J.F., and C. M. were supported by Grants No. NSF-PHY-0653315 and No. NSF-PHY-0510020; E. E. and S. W. were supported by DOE Grant No. DE-FG02-93ER-40762; N.M. was supported under Grant No. DST-SR/S2/RJN-19/2007; A. L. was supported by RIKEN and Brookhaven National Laboratory under Department of Energy Contract No. DE-AC02-98CH10886. E. E. thanks J. Dudek for help regarding the reconstruction of the correlator and for his fitting code. This work was supported by DOE Contract No. DE-AC05-06OR23177, under which Jefferson Science Associates, LLC, operates Jefferson Laboratory. NR 42 TC 66 Z9 66 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 FEB PY 2009 VL 79 IS 3 AR 034505 DI 10.1103/PhysRevD.79.034505 PG 17 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600063 ER PT J AU Campbell, J Ellis, RK Cordero, FF Maltoni, F Reina, L Wackeroth, D Willenbrock, S AF Campbell, J. Ellis, R. K. Cordero, F. Febres Maltoni, F. Reina, L. Wackeroth, D. Willenbrock, S. TI Associated production of a W boson and one b jet SO PHYSICAL REVIEW D LA English DT Article ID ONE-LOOP AMPLITUDES; QUARK PRODUCTION; HIGGS-BOSON; TOP-QUARK; COLLISIONS; SEARCH AB We calculate the production of a W boson and a single b jet to next-to-leading order in QCD at the Fermilab Tevatron and the CERN Large Hadron Collider. Both exclusive and inclusive cross sections are presented. We separately consider the cross section for jets containing a single b quark and jets containing a b (b) over bar pair. There are a wide variety of processes that contribute, and it is necessary to include them all in order to have a complete description at both colliders. C1 [Campbell, J.] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland. [Ellis, R. K.] Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. [Cordero, F. Febres] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [Reina, L.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA. [Wackeroth, D.] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA. [Willenbrock, S.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA. [Maltoni, F.] Catholic Univ Louvain, Inst Phys Theor, B-1348 Louvain, Belgium. [Maltoni, F.] Catholic Univ Louvain, Ctr Particle Phys & Phenomenol CP3, B-1348 Louvain, Belgium. RP Campbell, J (reprint author), Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland. FU U. S. Department of Energy [DE-AC02-76CH03000, DE-FG02-91ER40662, DE-FG02-91ER40677, DE-FG02-97IR4102]; National Science Foundation [NSF-PHY-0456681, NSF-PHY-0547564] FX We are grateful for conversations and correspondence with Ann Heinson and Tony Liss. F. M. and L. R. thank the Aspen Center for Physics for hospitality while this work was being completed. This work was supported in part by the U. S. Department of Energy under Contracts No. DEAC02-76CH03000, No. DE-FG02-91ER40662, No. DEFG02-91ER40677, and No. DE-FG02-97IR4102. The work of D. W. is supported in part by the National Science Foundation under Grants No. NSF-PHY-0456681 and No. NSF-PHY-0547564. NR 34 TC 28 Z9 28 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 FEB PY 2009 VL 79 IS 3 AR 034023 DI 10.1103/PhysRevD.79.034023 PG 9 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600047 ER PT J AU Crater, HW Yoon, JH Wong, CY AF Crater, Horace W. Yoon, Jin-Hee Wong, Cheuk-Yin TI Singularity structures in Coulomb-type potentials in two-body Dirac equations of constraint dynamics SO PHYSICAL REVIEW D LA English DT Article ID GENERAL COVARIANT INTERACTIONS; QUARK-GLUON PLASMA; SPINNING PARTICLES; MODEL; MECHANICS; MESONS; COLLABORATION; PERSPECTIVE; SCATTERING; COLLISIONS AB Two-body Dirac equations (TBDE) of Dirac's relativistic constraint dynamics have been successfully applied to obtain a covariant nonperturbative description of QED and QCD bound states. Coulomb-type potentials in these applications lead naively in other approaches to singular relativistic corrections at short distances that require the introduction of either perturbative treatments or smoothing parameters. We examine the corresponding singular structures in the effective potentials of the relativistic Schrodinger equation obtained from the Pauli reduction of the TBDE. We find that the relativistic Schrodinger equation leads in fact to well-behaved wave function solutions when the full potential and couplings of the system are taken into account. The most unusual case is the coupled triplet system with S=1 and L={(J-1),(J+1)}. Without the inclusion of the tensor coupling, the effective S-state potential would become attractively singular. We show how including the tensor coupling is essential in order that the wave functions be well-behaved at short distances. For example, the S-state wave function becomes simply proportional to the D-state wave function and dips sharply to zero at the origin, unlike the usual S-state wave functions. Furthermore, this behavior is similar in both QED and QCD, independent of the asymptotic freedom behavior of the assumed QCD vector potential. Light- and heavy-quark meson states can be described well by using a simplified linear-plus-Coulomb-type QCD potential apportioned appropriately between world scalar and vector potentials. We use this potential to exhibit explicitly the origin of the large pi-rho splitting and effective chiral symmetry breaking. The TBDE formalism developed here may be used to study quarkonia in quark-gluon plasma environments. C1 [Crater, Horace W.] Univ Tennessee, Inst Space, Tullahoma, TN 37388 USA. [Yoon, Jin-Hee] Inha Univ, Dept Phys, Inchon, South Korea. [Wong, Cheuk-Yin] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Wong, Cheuk-Yin] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. RP Crater, HW (reprint author), Univ Tennessee, Inst Space, Tullahoma, TN 37388 USA. EM hcrater@utsi.edu; jinyoon@inha.ac.kr; wongc@ornl.gov OI Wong, Cheuk-Yin/0000-0001-8223-0659 NR 60 TC 16 Z9 16 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 FEB PY 2009 VL 79 IS 3 AR 034011 DI 10.1103/PhysRevD.79.034011 PG 18 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600035 ER PT J AU Dodelson, S AF Dodelson, Scott TI Backgrounds and projected limits from dark matter direct detection experiments SO PHYSICAL REVIEW D LA English DT Article AB A simple formula is introduced which indicates the amount by which projections of dark matter direct detection experiments are expected to be degraded due to backgrounds. C1 [Dodelson, Scott] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. [Dodelson, Scott] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [Dodelson, Scott] Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. RP Dodelson, S (reprint author), Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, POB 500, Batavia, IL 60510 USA. EM dodelson@fnal.gov FU Fermi Research Alliance, LLC [DE-AC02-07CH11359] FX This work was supported by the Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy. I thank Dan Bauer, Richard Gaitskell, Bernard Sadoulet, Richard Schnee, and Steve Yellin for helpful comments and discussions. FORTRAN code to compute the BPF is available [6]. NR 4 TC 1 Z9 1 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 4 AR 043508 DI 10.1103/PhysRevD.79.043508 PG 4 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413UA UT WOS:000263816800031 ER PT J AU Dusling, K Ratti, C Zahed, I AF Dusling, K. Ratti, C. Zahed, I. TI Polyakov-Nambu-Jona-Lasinio model in 0+1 dimensions SO PHYSICAL REVIEW D LA English DT Article ID RANDOM-MATRIX MODEL; PHASE-TRANSITION; DYNAMICAL MODEL; PNJL MODEL; LOOP; QCD; SUPERCONDUCTIVITY; THERMODYNAMICS; SYMMETRY; ANALOGY AB We formulate the Polyakov-Nambu-Jona-Lasinio model in 0 + 1 dimensions. The thermodynamics captured by the partition function yields a bulk pressure, as well as quark susceptibilities versus temperature that are similar to the ones in 3 + 1 dimensions. Around the transition temperature the behavior in the pressure and quark susceptibilities follows from the interplay between the lowest Matsubara frequency and the Polyakov line. The reduction to the lowest Matsubara frequency yields a matrix model. In the presence of the Polyakov line the UV part of the Dirac spectrum features oscillations when close to the transition temperature. C1 [Dusling, K.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Dusling, K.; Ratti, C.; Zahed, I.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RP Dusling, K (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. OI Dusling, Kevin/0000-0001-9598-0416 FU U.S. DOE [DE-FG02-88ER40388, DE-FG03-97ER4014, DE-AC02-98CH10886] FX This work was supported in part by U.S. DOE Grants No. DE-FG02-88ER40388, No. DE-FG03-97ER4014 and No. DE-AC02-98CH10886. NR 50 TC 7 Z9 7 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 3 AR 034027 DI 10.1103/PhysRevD.79.034027 PG 9 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600051 ER PT J AU Giannotti, M Mottola, E AF Giannotti, Maurizio Mottola, Emil TI Trace anomaly and massless scalar degrees of freedom in gravity SO PHYSICAL REVIEW D LA English DT Article ID ENERGY-MOMENTUM-TENSOR; GAUGE-INVARIANCE; GRAVITATIONAL ANOMALIES; DISPERSIVE DERIVATION; CONFORMAL ANOMALIES; QUANTUM GEOMETRY; INFRARED ASPECTS; ELECTRODYNAMICS; ULTRAVIOLET; PRINCIPLE AB The trace anomaly of quantum fields in electromagnetic or gravitational backgrounds implies the existence of massless scalar poles in physical amplitudes involving the stress-energy tensor. Considering first the axial anomaly and using QED as an example, we compute the full one-loop triangle amplitude of the fermionic stress tensor with two current vertices, < T(mu nu)J(alpha)J(beta)>, and exhibit the scalar pole in this amplitude associated with the trace anomaly, in the limit of zero electron mass m -> 0. To emphasize the infrared aspect of the anomaly, we use a dispersive approach and show that this amplitude and the existence of the massless scalar pole is determined completely by its ultraviolet finite terms, together with the requirements of Poincare invariance of the vacuum, Bose symmetry under interchange of J(alpha) and J(beta), and vector current and stress-tensor conservation. We derive a sum rule for the appropriate positive spectral function corresponding to the discontinuity of the triangle amplitude, showing that it becomes proportional to delta(k(2)) and therefore contains a massless scalar intermediate state in the conformal limit of zero electron mass. The effective action corresponding to the trace of the triangle amplitude can be expressed in local form by the introduction of two scalar auxiliary fields which satisfy massless wave equations. These massless scalar degrees of freedom couple to classical sources, contribute to gravitational scattering processes, and can have long range gravitational effects. C1 [Giannotti, Maurizio; Mottola, Emil] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Giannotti, M (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM maurizio@lanl.gov; emil@lanl.gov OI Mottola, Emil/0000-0003-1067-1388 NR 57 TC 53 Z9 53 U1 0 U2 0 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 FEB PY 2009 VL 79 IS 4 AR 045014 DI 10.1103/PhysRevD.79.045014 PG 33 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413UA UT WOS:000263816800101 ER PT J AU Lin, HW Orginos, K AF Lin, Huey-Wen Orginos, Konstantinos TI Calculation of hyperon axial couplings from lattice QCD SO PHYSICAL REVIEW D LA English DT Article ID CHIRAL FERMIONS; BREAKING; DECAYS AB In this work, we report the first lattice calculation of hyperon axial couplings, using the 2+1-flavor MILC configurations and domain-wall fermion valence quarks. Both the Sigma and Xi axial couplings are computed for the first time in lattice QCD. In particular, we find that g(Sigma Sigma)=0.450(21)(stat)(27)(syst) and g(Xi Xi)=-0.277(15)(stat)(19)(syst). C1 [Lin, Huey-Wen] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Orginos, Konstantinos] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA. RP Lin, HW (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. EM hwlin@jlab.org; kostas@wm.edu FU DOE [DE-AC05-06OR23177]; Jeffress Memorial Trust [J-813,]; DOE OJI [DE-FG02-07ER41527, DE-FG02-04ER41302] FX The authors thank Martin Savage for motivating the project, and W. Detmold and C.- J. D. Lin for the Mathematica notebook with their results of Ref. [ 19] and helpful discussion on further details. We thank the LHPC and NPLQCD collaborations for some of the light and strange quark propagators. These calculations were performed using the Chroma software suite [ 23] on clusters at Jefferson Laboratory using time awarded under the SciDAC Initiative. This work is supported by Jefferson Science Associates, LLC under U. S. DOE Contract No. DE-AC05-06OR23177. K. O. acknowledges support by the Jeffress Memorial Trust Grant No. J-813, DOE OJI Grant No. DE-FG02-07ER41527, and DOE Grant No. DE-FG02-04ER41302. NR 34 TC 39 Z9 39 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB PY 2009 VL 79 IS 3 AR 034507 DI 10.1103/PhysRevD.79.034507 PG 6 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600065 ER PT J AU Lin, HW Cohen, SD Dudek, J Edwards, RG Joo, B Richards, DG Bulava, J Foley, J Morningstar, C Engelson, E Wallace, S Juge, KJ Mathur, N Peardon, MJ Ryan, SM AF Lin, Huey-Wen Cohen, Saul D. Dudek, Jozef Edwards, Robert G. Joo, Balint Richards, David G. Bulava, John Foley, Justin Morningstar, Colin Engelson, Eric Wallace, Stephen Juge, K. Jimmy Mathur, Nilmani Peardon, Michael J. Ryan, Sinead M. CA Hadron Spectrum Collaboration TI First results from 2+1 dynamical quark flavors on an anisotropic lattice: Light-hadron spectroscopy and setting the strange-quark mass SO PHYSICAL REVIEW D LA English DT Article ID MONTE-CARLO ALGORITHM; QCD AB We present the first light-hadron spectroscopy on a set of N(f)=2+1 dynamical, anisotropic lattices. A convenient set of coordinates that parameterize the two-dimensional plane of light and strange-quark masses is introduced. These coordinates are used to extrapolate data obtained at the simulated values of the quark masses to the physical light and strange-quark point. A measurement of the Sommer scale on these ensembles is made, and the performance of the hybrid Monte Carlo algorithm used for generating the ensembles is estimated. C1 [Lin, Huey-Wen; Cohen, Saul D.; Dudek, Jozef; Edwards, Robert G.; Joo, Balint; Richards, David G.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Bulava, John; Foley, Justin; Morningstar, Colin] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA. [Engelson, Eric; Wallace, Stephen] Univ Maryland, Dept Phys, College Pk, MD 20742 USA. [Juge, K. Jimmy] Univ Pacific, Dept Phys, Stockton, CA 95211 USA. [Mathur, Nilmani] Tata Inst Fundamental Res, Dept Theoret Phys, Mumbai 400005, Maharashtra, India. [Peardon, Michael J.; Ryan, Sinead M.] Trinity Coll Dublin, Sch Math, Dublin 2, Ireland. RP Lin, HW (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. EM hwlin@jlab.org RI Morningstar, Colin/N-6925-2014; OI Bulava, John/0000-0001-9447-8459; Morningstar, Colin/0000-0002-0607-9923; Cohen, Saul/0000-0001-6804-3320; Peardon, Michael/0000-0002-4199-6284 NR 34 TC 162 Z9 163 U1 1 U2 9 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 FEB PY 2009 VL 79 IS 3 AR 034502 DI 10.1103/PhysRevD.79.034502 PG 20 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600060 ER PT J AU Marquet, C Royon, C AF Marquet, C. Royon, C. TI Azimuthal decorrelation of Mueller-Navelet jets at the Tevatron and the LHC SO PHYSICAL REVIEW D LA English DT Article ID GAUGE-THEORIES; FORWARD-JET; HADRON COLLIDERS; DIJET PRODUCTION; BFKL EQUATION; CROSS-SECTION; QCD; RAPIDITY; POMERON; HERA AB We study the production of Mueller-Navelet jets at hadron colliders in the Balitsky-Fadin-Kuraev-Lipatov framework. We show that a measurement of the relative azimuthal angle Delta Phi between the jets can provide a good testing ground for corrections due to next-leading logarithms (NLL). Besides the well-known azimuthal decorrelation with increasing rapidity interval Delta eta between the jets, we propose to also measure this effect as a function of R=k(2)/k(1), the ratio between the jet transverse momenta. Using renormalization-group improved NLL kernel, we obtain predictions for d sigma/d Delta eta dRd Delta Phi. We analyze NLL-scheme and renormalization-scale uncertainties, and energy-momentum conservation effects, in order to motivate a measurement at the Tevatron and the LHC. C1 [Marquet, C.] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Royon, C.] CEA Saclay, Serv Phys & Particules, DAPNIA, F-91191 Gif Sur Yvette, France. RP Marquet, C (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. EM marquet@quark.phy.bnl.gov; royon@hep.saclay.cea.fr NR 47 TC 35 Z9 35 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB PY 2009 VL 79 IS 3 AR 034028 DI 10.1103/PhysRevD.79.034028 PG 10 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 413TY UT WOS:000263816600052 ER PT J AU Hoyt, JJ Olmsted, D Jindal, S Asta, M Karma, A AF Hoyt, J. J. Olmsted, David Jindal, Saryu Asta, Mark Karma, Alain TI Method for computing short-range forces between solid-liquid interfaces driving grain boundary premelting SO PHYSICAL REVIEW E LA English DT Article DE entropy; fluctuations; free energy; grain boundaries; long-range order; melting point; short-range order ID MOLECULAR-DYNAMICS; MELTING TRANSITION; FUNCTIONAL RENORMALIZATION; WETTING TRANSITIONS; PHASE-TRANSITION; SIMULATION; MODEL; ALUMINUM AB We present a molecular dynamics based method for accurately computing short-range structural forces resulting from the overlap of spatially diffuse solid-liquid interfaces at wetted grain boundaries close to the melting point. The method is based on monitoring the fluctuations of the liquid layer width at different temperatures to extract the excess interfacial free energy as a function of this width. The method is illustrated for a high-energy Sigma 9 twist boundary in pure Ni. The short-range repulsion driving premelting is found to be dominant in comparison to long-range dispersion and entropic forces and consistent with previous experimental findings that nanometer-scale layer widths may be observed only very close to the melting point. C1 [Hoyt, J. J.] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada. [Olmsted, David] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Jindal, Saryu; Asta, Mark] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. [Karma, Alain] Northeastern Univ, Dept Phys, Boston, MA 02215 USA. [Karma, Alain] Northeastern Univ, Ctr Interdisciplinary Res Complex Syst, Boston, MA 02215 USA. RP Hoyt, JJ (reprint author), McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada. FU Natural Sciences and Engineering Research Council (NSERC) of Canada Discovery; U. S. Department of Energy (DOE), Office of Basic Energy Sciences [DEFG0201ER45910, DE-FGO2-07ER46400]; DOE's National Nuclear Security Administration [DE-AC04-94AL85000] FX J.J.H. acknowledges financial support from a Natural Sciences and Engineering Research Council (NSERC) of Canada Discovery grant. Work at U. C. Davis and Northeastern was supported by the U. S. Department of Energy (DOE), Office of Basic Energy Sciences, under Contracts No. DEFG0201ER45910 and No. DE-FGO2-07ER46400, respectively. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the DOE's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. M. A. and S. J. acknowledge helpful discussions with Dr. R. G. Hoagland. All the authors acknowledge support from the NR 35 TC 33 Z9 33 U1 1 U2 3 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 FEB PY 2009 VL 79 IS 2 AR 020601 DI 10.1103/PhysRevE.79.020601 PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 413QJ UT WOS:000263807300005 PM 19391697 ER PT J AU in't Veld, PJ Petersen, MK Grest, GS AF in't Veld, Pieter J. Petersen, Matt K. Grest, Gary S. TI Shear thinning of nanoparticle suspensions SO PHYSICAL REVIEW E LA English DT Article DE colloids; gels; Lennard-Jones potential; liquid theory; molecular dynamics method; nanoparticles; solvent effects; suspensions; viscosity ID MOLECULAR-DYNAMICS SIMULATION; CONCENTRATED COLLOIDS; STOKESIAN DYNAMICS; PARTICLE MODEL; VISCOSITY; FLUID; RHEOLOGY; DISPERSIONS; DIFFUSION; SOLVENT AB Results of large scale nonequilibrium molecular dynamics simulations are presented for nanoparticles in an explicit solvent. The nanoparticles are modeled as a uniform distribution of Lennard-Jones particles, while the solvent is represented by standard Lennard-Jones particles. We present results for the shear rheology of spherical nanoparticles of diameter 10 times that of the solvent for a range of nanoparticle volume fractions. By varying the strength of the interactions between nanoparticles and with the solvent, this system can be used to model colloidal gels and glasses as well as hard spherelike nanoparticles. Effect of including the solvent explictly is demonstrated by comparing the pair correlation function of nanoparticles to that in an implicit solvent. The shear rheology for dumbbell nanoparticles made of two fused spheres is similar to that of single nanoparticle. C1 [in't Veld, Pieter J.; Petersen, Matt K.; Grest, Gary S.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [in't Veld, Pieter J.] BASF SE, D-67056 Ludwigshafen, Germany. RP in't Veld, PJ (reprint author), Sandia Natl Labs, Albuquerque, NM 87185 USA. FU United States Department of Energy [DE-AC0494AL85000] FX This work is supported by the Laboratory Directed Research and Development program at Sandia National Laboratories. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract No. DE-AC0494AL85000. NR 33 TC 15 Z9 15 U1 3 U2 27 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 FEB PY 2009 VL 79 IS 2 AR 021401 DI 10.1103/PhysRevE.79.021401 PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 413QJ UT WOS:000263807300049 PM 19391741 ER PT J AU Kondic, L Diez, JA Rack, PD Guan, YF Fowlkes, JD AF Kondic, Lou Diez, Javier A. Rack, Philip D. Guan, Yingfeng Fowlkes, Jason D. TI Nanoparticle assembly via the dewetting of patterned thin metal lines: Understanding the instability mechanisms SO PHYSICAL REVIEW E LA English DT Article DE laser materials processing; nanolithography; nanoparticles; nanopatterning; nickel; wetting ID CONTACT LINES; FILMS; SILICON AB Nanosecond pulsed laser heating was used to control the assembly of spatially correlated nanoparticles from lithographically patterned pseudo-one-dimensional nickel lines. The evolution of the nickel line instabilities and nanoparticle formation with a correlated size and spacing was observed after a series of laser pulses. To understand the instabilities that direct the nanoparticle assembly, we have carried out nonlinear time-dependent simulations and linear stability analysis based on a simple hydrodynamic model. We find that the simulated time scales and length scales agree well with the experimental results. Interestingly, in both experiments and simulations, the instabilities associated with the line edge, and with the surface perturbation-driven mechanism, are found to result in similar particle sizes and spacings. C1 [Kondic, Lou] New Jersey Inst Technol, Dept Math Sci, Ctr Appl Math & Stat, Newark, NJ 07102 USA. [Diez, Javier A.] Univ Nacl, Inst Fis Arroyo Seco, Ctr Prov Buenos Aires, RA-7000 Tandil, Argentina. [Rack, Philip D.; Guan, Yingfeng; Fowlkes, Jason D.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Rack, Philip D.; Guan, Yingfeng; Fowlkes, Jason D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Kondic, L (reprint author), New Jersey Inst Technol, Dept Math Sci, Ctr Appl Math & Stat, Newark, NJ 07102 USA. OI Rack, Philip/0000-0002-9964-3254 FU Oak Ridge National Laboratory's Center for Nanophase Materials Sciences; U. S. Department of Energy; Consejo Nacional de Investigaciones CientIficas y TEcnicas de la Rep blica Argentina (CONICET); Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT) [PICT 2498/06] FX P. D. R. and J. D. F. acknowledge that a portion of this work was performed at Oak Ridge National Laboratory's Center for Nanophase Materials Sciences which is sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U. S. Department of Energy. J. A. D. acknowledges support from Consejo Nacional de Investigaciones CientIficas y TEcnicas de la Rep blica Argentina (CONICET) and from Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT) through Grant No. PICT 2498/06. NR 27 TC 57 Z9 57 U1 2 U2 33 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 FEB PY 2009 VL 79 IS 2 AR 026302 DI 10.1103/PhysRevE.79.026302 PN 2 PG 7 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 413RI UT WOS:000263809800044 PM 19391835 ER PT J AU Schelkacheva, TI Tareyeva, EE Chtchelkatchev, NM AF Schelkacheva, T. I. Tareyeva, E. E. Chtchelkatchev, N. M. TI Pressure-induced orientational glass phase in molecular para-hydrogen SO PHYSICAL REVIEW E LA English DT Article DE glass transition; high-pressure solid-state phase transformations; hydrogen; phase diagrams; spin glasses ID LOW-TEMPERATURE PHASE; SPIN-GLASSES; QUADRUPOLAR GLASS; ULTRAHIGH-PRESSURE; SOLID DEUTERIUM; SOLVABLE MODEL; TRANSITION; SYMMETRY AB We propose a theoretical description of a possible orientational glass transition in solid molecular para-hydrogen and ortho-deuterium under pressure supposing that they are mixtures of J=0 and J=2 states of molecules. The theory uses the basic concepts and methods of standard spin-glass theory. We expect our orientational glass to correspond to the II' phase of the high-pressure hydrogen phase diagram. C1 [Schelkacheva, T. I.; Tareyeva, E. E.; Chtchelkatchev, N. M.] Russian Acad Sci, Inst High Pressure Phys, Troitsk 142190, Moscow Region, Russia. [Chtchelkatchev, N. M.] Moscow Phys Tech Inst, Dept Theoret Phys, Dolgoprudnyi 141700, Russia. [Chtchelkatchev, N. M.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Schelkacheva, TI (reprint author), Russian Acad Sci, Inst High Pressure Phys, Troitsk 142190, Moscow Region, Russia. RI Chtchelkatchev, Nikolay/L-1273-2013 OI Chtchelkatchev, Nikolay/0000-0002-7242-1483 NR 35 TC 10 Z9 13 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 EI 1550-2376 J9 PHYS REV E JI Phys. Rev. E PD FEB PY 2009 VL 79 IS 2 AR 021105 DI 10.1103/PhysRevE.79.021105 PN 1 PG 7 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 413QJ UT WOS:000263807300012 PM 19391704 ER PT J AU Srivastava, S Kandar, AK Basu, JK Mukhopadhyay, MK Lurio, LB Narayanan, S Sinha, SK AF Srivastava, S. Kandar, A. K. Basu, J. K. Mukhopadhyay, M. K. Lurio, L. B. Narayanan, S. Sinha, S. K. TI Complex dynamics in polymer nanocomposites SO PHYSICAL REVIEW E LA English DT Article DE differential scanning calorimetry; gold; nanocomposites; nanoparticles; photon correlation spectroscopy; polymers; X-ray spectra ID NANOPARTICLE DISPERSION; LENGTH SCALE; COMPOSITES; SCATTERING; DIFFUSION; GELS AB Polymer nanocomposites offer the potential to create a new type of hybrid material with unique thermal, optical, or electrical properties. Understanding their structure, phase behavior, and dynamics is crucial for realizing such potentials. In this work we provide an experimental insight into the dynamics of such composites in terms of the temperature, wave vector, and volume fraction of nanoparticles, using multispeckle synchrotron x-ray photon correlation spectroscopy measurements on gold nanoparticles embedded in polymethylmethacrylate. Detailed analysis of the intermediate scattering functions reveals possible existence of an intrinsic length scale for dynamic heterogeneity in polymer nanocomposites similar to that seen in other soft materials like colloidal gels and glasses. C1 [Srivastava, S.; Kandar, A. K.; Basu, J. K.] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India. [Mukhopadhyay, M. K.; Sinha, S. K.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Lurio, L. B.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Narayanan, S.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Srivastava, S (reprint author), Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India. EM basu@physics.iisc.ernet.in RI Mukhopadhyay, Mrinmay/E-6667-2012; KANDAR, AJOY KUMAR/N-1047-2016 FU U. S. DOE (BES) [W-31-109-Eng-38] FX The authors acknowledge M. Sprung (APS) for discussions and A. Sandy (APS) for assistance in experiments. This work benefited by the use of facilities at APS, which is supported by U. S. DOE (BES) under Contract No. W-31-109-Eng-38 to the University of Chicago. Part of the work has been supported by DST, India and UCSD. NR 33 TC 13 Z9 13 U1 5 U2 21 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 FEB PY 2009 VL 79 IS 2 AR 021408 DI 10.1103/PhysRevE.79.021408 PG 7 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 413QJ UT WOS:000263807300056 PM 19391748 ER PT J AU Wang, S Pan, L McCoy, BK Wang, ST Pindak, R Nguyen, HT Huang, CC AF Wang, Shun Pan, LiDong McCoy, B. K. Wang, S. T. Pindak, R. Nguyen, H. T. Huang, C. C. TI Recovery of a reversed phase sequence in one ternary liquid-crystal-mixture system SO PHYSICAL REVIEW E LA English DT Article DE antiferroelectric liquid crystals; doping; liquid mixtures; organic compounds; smectic liquid crystals ID FILMS; ARRANGEMENTS; POLARIZATION; SMC AB The nOHFBBB1M7 (n=10) compound, 10OHF, shows a reversed SmC(FI2)(*)-SmC(*) phase sequence, unique among all known antiferroelectric liquid crystals. This reversed phase sequence is stabilized when 10OHF is doped with 9OTBBB1M7(C9) or 11OTBBB1M7(C11). In contrast, doping of the homologous members (n=9, 11, or 12) eliminates the SmC(FI2)(*) phase. One 10OHF/11OHF mixture without the SmC(FI2)(*) phase was selected for further studies. By adding C9 into this particular mixture, the reversed phase sequence is revived. To our surprise, even though 11OHF destabilizes the SmC(FI2)(*) phase in binary mixtures with 10OHF, it significantly increases the SmC(FI2)(*) temperature range in the 10OHF/11OHF/C9 ternary mixtures. C1 [Wang, Shun; Pan, LiDong; McCoy, B. K.; Huang, C. C.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA. [McCoy, B. K.] Azusa Pacific Univ, Dept Math & Phys, Azusa, CA 91702 USA. [Wang, S. T.; Pindak, R.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Nguyen, H. T.] Univ Bordeaux 1, Ctr Rech Paul Pascal, CNRS, F-33600 Pessac, France. RP Wang, S (reprint author), Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA. RI Shun, Wang/O-6978-2015 OI Shun, Wang/0000-0002-7996-8887 FU National Synchrotron Light Source; Brookhaven National Laboratory; U. S. Department of Energy [DE-AC02-98CH10886]; National Science Foundation [DMR-0605760] FX 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. The research was supported in part by the National Science Foundation, Solid State Chemistry Program under Grant No. DMR-0605760. We want to thank Professor P. Barois for lending us the x-ray oven. NR 19 TC 8 Z9 8 U1 0 U2 1 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 FEB PY 2009 VL 79 IS 2 AR 021706 DI 10.1103/PhysRevE.79.021706 PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 413QJ UT WOS:000263807300072 PM 19391764 ER PT J AU Gruner, FJ Schroeder, CB Maier, AR Becker, S Mikhailova, JM AF Gruener, F. J. Schroeder, C. B. Maier, A. R. Becker, S. Mikhailova, J. M. TI Space-charge effects in ultrahigh current electron bunches generated by laser-plasma accelerators SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID WAKE-FIELD ACCELERATION; WAKEFIELD ACCELERATOR; PULSES; INJECTION; BEAMS; QUALITY; RADIATION; BREAKING; GRADIENT; REGIME AB Recent advances in laser-plasma accelerators, including the generation of GeV-scale electron bunches, enable applications such as driving a compact free-electron laser (FEL). Significant reduction in size of the FEL is facilitated by the expected ultrahigh peak beam currents (10-100 kA) generated in laser-plasma accelerators. At low electron energies such peak currents are expected to cause space-charge effects such as bunch expansion and induced energy variations along the bunch, potentially hindering the FEL process. In this paper we discuss a self-consistent approach to modeling space-charge effects for the regime of laser-plasma-accelerated ultracompact electron bunches at low or moderate energies. Analytical treatments are considered as well as point-to-point particle simulations, including the beam transport from the laser-plasma accelerator through focusing devices and the undulator. In contradiction to non-self-consistent analyses (i.e., neglecting bunch evolution), which predict a linearly growing energy chirp, we have found the energy chirp reaches a maximum and decreases thereafter. The impact of the space-charge induced chirp on FEL performance is discussed and possible solutions are presented. C1 [Gruener, F. J.; Mikhailova, J. M.] Max Planck Inst Quantum Opt, D-85748 Garching, Germany. [Gruener, F. J.; Maier, A. R.; Becker, S.] Univ Munich, D-85748 Garching, Germany. [Schroeder, C. B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Mikhailova, J. M.] Moscow MV Lomonosov State Univ, Moscow 119992, Russia. RP Gruner, FJ (reprint author), Max Planck Inst Quantum Opt, D-85748 Garching, Germany. EM florian.gruener@mpq.mpg.de RI Maier, Andreas/L-5741-2016; Gruner, Florian/M-1212-2016; OI Maier, Andreas/0000-0003-3361-4247; Gruner, Florian/0000-0001-8382-9225; Schroeder, Carl/0000-0002-9610-0166 FU U.S. Department of Energy [DE-AC02-05CH11231] FX We are grateful for constructive discussions with E. Esarey, A. Meseck, M. Dohlus, T. Limberg, S. Reiche, and W. Leemans. This work has been funded by DFG through Transregio TR18 and supported by the DFG cluster-of-excellence Munich Center for Advanced Photonics MAP. Work at LBNL was supported by the Director, Office of Science, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 43 TC 10 Z9 10 U1 2 U2 6 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 FEB PY 2009 VL 12 IS 2 AR 020701 DI 10.1103/PhysRevSTAB.12.020701 PG 11 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 420FH UT WOS:000264273800002 ER PT J AU Hahn, H Choi, EM Hammons, L AF Hahn, H. Choi, E. M. Hammons, L. TI Ferrite-damped higher-order mode study in the Brookhaven energy-recovery linac cavity SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article AB A superconducting energy-recovery linac (ERL) is under construction at Brookhaven National Laboratory (BNL) to serve as a test bed for an application to upgrades of the Relativistic Heavy Ion Collider (RHIC). The damping of higher-order modes in the superconducting five-cell cavity is of paramount importance and represents the topic of this paper. Achieving the damping by the exclusive use of two ferrite absorbers and the adoption of a space-saving step instead of the conventional taper are part of the exploratory study. Absorber properties which are portable to simulation programs for the ERL cavity have been obtained by measuring the absorber as a ferrite-loaded pill-box cavity. Measured and simulated results for the lowest dipole modes in the prototype copper cavity with one absorber are discussed. First room-temperature measurements of the fully assembled niobium cavity string are presented which confirm the effective damping of higher-order modes by the ferrite absorbers, and which give credibility to the simulated R over Q's in the ERL. C1 [Hahn, H.; Choi, E. M.; Hammons, L.] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA. RP Hahn, H (reprint author), Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA. RI Hammons, Lee/D-6041-2013; Choi, Eunmi/L-6346-2013 OI Hammons, Lee/0000-0001-7066-8960; FU Brookhaven Science Associates; U.S. Department of Energy [DE-AC02-98CH10886] FX The authors would like to thank Dr. Ilan Ben-Zvi and Dr. Vladimir Litvinenko for helpful comments. The support provided by the Collider-Accelerator technical staff setting up the cavities was greatly appreciated. This work was supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. NR 15 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 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD FEB PY 2009 VL 12 IS 2 AR 021002 DI 10.1103/PhysRevSTAB.12.021002 PG 8 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 420FH UT WOS:000264273800005 ER PT J AU Li, YL Chemerisov, S Lewellen, J AF Li, Yuelin Chemerisov, Sergey Lewellen, John TI Laser pulse shaping for generating uniform three-dimensional ellipsoidal electron beams SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID ULTRASHORT PULSES; EMITTANCE COMPENSATION; OPTICAL-ELEMENTS; PROFILES; DESIGN; PHASE; RF; PHOTOINJECTORS; LENSES; SYSTEM AB A scheme of generating a uniform ellipsoidal laser pulse for high-brightness photoinjectors is discussed. The scheme is based on the chromatic aberration of a dispersive lens. Fourier optics simulation reveals the interplay of group velocity delay and dispersion in the scheme, as well as diffractions. Particle tracking simulation shows that the beam generated by such a laser pulse approaches the performance of that by an ideal ellipsoidal laser pulse and represents a significant improvement from the traditionally proposed cylindrical beam geometry. The scheme is tested in an 800-nm, optical proof-of-principle experiment at lower peak power with excellent agreement between the measurement and simulation. C1 [Li, Yuelin] Argonne Natl Lab, Accelerator Syst Div, Argonne, IL 60439 USA. [Chemerisov, Sergey] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Lewellen, John] Argonne Natl Lab, Argonne ONR Project Off, Argonne, IL 60439 USA. RP Li, YL (reprint author), Argonne Natl Lab, Accelerator Syst Div, 9700 S Cass Ave, Argonne, IL 60439 USA. FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX The authors thank K.-J. Kim and K. Harkay for support. This work is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 49 TC 14 Z9 15 U1 1 U2 5 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 FEB PY 2009 VL 12 IS 2 AR 020702 DI 10.1103/PhysRevSTAB.12.020702 PG 11 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 420FH UT WOS:000264273800003 ER PT J AU Stratakis, D Kishek, RA Fiorito, RB Tian, K Haber, I O'Shea, PG Reiser, M Thangaraj, JCT AF Stratakis, D. Kishek, R. A. Fiorito, R. B. Tian, K. Haber, I. O'Shea, P. G. Reiser, M. Thangaraj, J. C. T. TI Time-dependent phase-space characterization of intense charged particle beams SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID EMITTANCE COMPENSATION; SLICE EMITTANCE; ION-BEAMS; ELECTRON; DESIGN; GUN AB Knowledge of the three-dimensional structure of a charged particle beam bunch is essential for understanding its evolution and for initializing computer simulations, especially when space charge is involved. This paper presents a novel experimental method for time-sliced mapping of the transverse phase space of a space-charge dominated beam based on tomographic principles. The combination of a high precision tomographic diagnostic with fast imaging screens and a gated camera are used to produce phase-space maps of two beams: one with a parabolic current profile and another with a short perturbation atop a rectangular pulse. The correlations between longitudinal and transverse phase spaces are apparent and their impact on the dynamics is discussed. C1 [Stratakis, D.; Kishek, R. A.; Fiorito, R. B.; Tian, K.; Haber, I.; O'Shea, P. G.; Reiser, M.; Thangaraj, J. C. T.] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA. RP Stratakis, D (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. RI Tian, Kai/B-8023-2012 FU U.S. Department of Energy High Energy Physics and Fusion Energy Science; Department of Defense Office of Naval Research and Joint Technology Office FX We wish to acknowledge M. Walter, S. Bernal, S. M. Lund, D. Sutter, B. Beaudoin, D. Feldman, H. Li, V. Yakimenko, and C. Papadopoulos for helpful discussions. This work is supported by the U.S. Department of Energy High Energy Physics and Fusion Energy Science, and by the Department of Defense Office of Naval Research and Joint Technology Office. NR 36 TC 6 Z9 6 U1 0 U2 6 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 FEB PY 2009 VL 12 IS 2 AR 020101 DI 10.1103/PhysRevSTAB.12.020101 PG 9 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 420FH UT WOS:000264273800001 ER PT J AU Mikaelian, KO AF Mikaelian, Karnig O. TI Reshocks, rarefactions, and the generalized Layzer model for hydrodynamic instabilities SO PHYSICS OF FLUIDS LA English DT Article DE plasma flow; plasma instability; plasma shock waves; plasma simulation; rarefied fluid dynamics ID RICHTMYER-MESHKOV INSTABILITY; RAYLEIGH-TAYLOR INSTABILITY; THIN FLUID LAYER; NATIONAL-IGNITION-FACILITY; STRATIFIED FLUIDS; EVOLUTION; PATTERNS AB We report numerical simulations and analytic modeling of shock tube experiments on Rayleigh-Taylor and Richtmyer-Meshkov instabilities. We examine single interfaces of the type A/B where the incident shock is initiated in A and the transmitted shock proceeds into B. Examples are He/air and air/He. In addition, we study finite-thickness or double-interface A/B/A configurations such as air/SF(6)/air gas-curtain experiments. We first consider conventional shock tubes that have a "fixed" boundary: A solid endwall which reflects the transmitted shock and reshocks the interface(s). Then we focus on new experiments with a "free" boundary-a membrane disrupted mechanically or by the transmitted shock, sending back a rarefaction toward the interface(s). Complex acceleration histories are achieved, relevant for inertial confinement fusion implosions. We compare our simulation results with a generalized Layzer model for two fluids with time-dependent densities and derive a new freeze-out condition whereby accelerating and compressive forces cancel each other out. Except for the recently reported failures of the Layzer model, the generalized Layzer model and hydrocode simulations for reshocks and rarefactions agree well with each other and remain to be verified experimentally. C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Mikaelian, KO (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 49 TC 8 Z9 8 U1 1 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 1070-6631 J9 PHYS FLUIDS JI Phys. Fluids PD FEB PY 2009 VL 21 IS 2 AR 024103 DI 10.1063/1.3073746 PG 16 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA 413PQ UT WOS:000263805400016 ER PT J AU Boozer, AH Pomphrey, N AF Boozer, Allen H. Pomphrey, Neil TI Use of helical fields to allow a long pulse reversed field pinch SO PHYSICS OF PLASMAS LA English DT Article DE reversed field pinch ID STELLARATOR; OPTIMIZATION; PLASMA; COILS; RFX AB The maintenance of the magnetic configuration of a reversed field pinch (RFP) is an unsolved problem. Even a toroidal loop voltage does not suffice to maintain the magnetic configuration in axisymmetry but could if the plasma had helical shaping. The theoretical tools for plasma optimization using helical shaping have advanced, so a RFP could be relatively easily designed for optimal performance with a spatially constant toroidal loop voltage. A demonstration that interesting solutions exist is given. C1 [Boozer, Allen H.] Columbia Univ, New York, NY 10027 USA. [Pomphrey, Neil] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA. RP Boozer, AH (reprint author), Columbia Univ, New York, NY 10027 USA. EM ahb17@columbia.edu; pomphrey@pppl.gov RI pomphrey, neil/G-4405-2010 FU U.S. Department of Energy [ER54333] FX A.H.B. would like to acknowledge support by the U.S. Department of Energy Grant No. ER54333. NR 17 TC 4 Z9 4 U1 1 U2 3 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 1070-664X EI 1089-7674 J9 PHYS PLASMAS JI Phys. Plasmas PD FEB PY 2009 VL 16 IS 2 AR 022507 DI 10.1063/1.3068748 PG 4 WC Physics, Fluids & Plasmas SC Physics GA 413NS UT WOS:000263800400036 ER PT J AU Chen, H Wilks, SC Kruer, WL Patel, PK Shepherd, R AF Chen, Hui Wilks, S. C. Kruer, W. L. Patel, P. K. Shepherd, R. TI Hot electron energy distributions from ultraintense laser solid interactions SO PHYSICS OF PLASMAS LA English DT Article DE plasma diagnostics; plasma light propagation; plasma simulation; plasma temperature ID PETAWATT-LASER; PLASMA INTERACTIONS; OBLIQUE-INCIDENCE; ABSORPTION; SPECTROMETER; IGNITION; TARGET AB Measurements of electron energy distributions from ultraintense (>10(19) W/cm(2)) laser solid interactions using an electron spectrometer are presented. The effective hot electron temperatures (T(hot)) have been measured for laser intensities (I lambda(2)) from 10(18) to 10(21) W/cm(2) mu m(2) for the first time, and T(hot) is found to increase as (I lambda(2))(0.34 +/- 0.04). This scaling agrees well with the empirical scaling published by Beg [Phys. Plasmas 4, 447 (1997)], and was modeled by particle-in-cell simulations. C1 [Chen, Hui; Wilks, S. C.; Kruer, W. L.; Patel, P. K.; Shepherd, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Chen, H (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RI Patel, Pravesh/E-1400-2011 FU Lawrence Livermore National Laboratory [DE-AC52-07NA27344, LDRD 08-LW-058] FX This work was performed under the auspices of the U. S. Department of Energy by the Lawrence Livermore National Laboratory under Contract Nos. DE-AC52-07NA27344 and LDRD 08-LW-058. We thank the staff of the Central Laser Facility, CCLRC Rutherford Appleton Laboratory, and the Jupiter Laser Facility for their excellent support for the experiments. We also wish to thank Dr. Max Tabak and Dr. Andreas Kemp for useful discussions, and Dr. Don Correll and Dr. William Goldstein for their support and encouragement. NR 30 TC 25 Z9 27 U1 2 U2 7 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD FEB PY 2009 VL 16 IS 2 AR 020705 DI 10.1063/1.3080197 PG 4 WC Physics, Fluids & Plasmas SC Physics GA 413NS UT WOS:000263800400005 ER PT J AU Frenje, JA Li, CK Rygg, JR Seguin, FH Casey, DT Petrasso, RD Delettrez, J Glebov, VY Sangster, TC Landen, O Hatchett, S AF Frenje, J. A. Li, C. K. Rygg, J. R. Seguin, F. H. Casey, D. T. Petrasso, R. D. Delettrez, J. Glebov, V. Yu. Sangster, T. C. Landen, O. Hatchett, S. TI Diagnosing ablator rho R and rho R asymmetries in capsule implosions using charged-particle spectrometry at the National Ignition Facility SO PHYSICS OF PLASMAS LA English DT Article DE explosions; fusion reactor ignition; fusion reactor materials; plasma diagnostics; plasma inertial confinement; plasma production ID INERTIAL-CONFINEMENT-FUSION; ELASTICALLY SCATTERED PROTONS; DIRECT-DRIVE; OMEGA; TARGETS; PLASMAS; FUEL; NIF; SPECIFICATIONS; UPDATE AB By fielding several compact proton spectrometers at various locations around an ignition-capsule implosion at the National Ignition Facility [G. H. Miller, E. I. Moses, and C. R. Wuest, Nucl. Fusion 44, S228 (2004)], rho R and rho R asymmetries of the ablator for a failed implosion can be obtained through absolute measurements of knock-on proton (KO-P) spectra. For ignition capsules with a Cu-doped beryllium (Be) ablator, 50:50 mixture of deuterium-tritium (DT) fuel and similar to 1% residual hydrogen (H) by atom, failed implosions can be diagnosed for neutron yields ranging from similar to 10(11) to similar to 6x10(15) and local rho Rs up to similar to 240 mg/cm(2). For capsules with an ablator of Ge-doped CH, which contains a large amounts of H, failed implosions can be diagnosed for neutron yields ranging from similar to 10(10) to similar to 6x10(15) and local rho Rs up to similar to 200 mg/cm(2). Prior to the first ignition experiments, capsules with a Cu-doped Be ablator (or Ge-doped CH ablator), more deuterium-lean fuel mixture and H-dopant levels up to 25% in the fuel will be imploded to primarily reduce the neutron yield. The HDT-filled Be-capsule implosion, which can be diagnosed for neutron yields ranging from similar to 5x10(9) to similar to 6x10(15) and local rho Rs up to similar to 240 mg/cm(2), is more suitable to diagnose using KO-Ps as the signal-to-background ratio is significantly higher than for an ignition-capsule implosion. In addition, analysis of CH-ablator data obtained from analogous OMEGA [T. R. Boehly, D. L. Brown, R. S. Craxton , Opt. Commun. 133, 495 (1997)] experiments indicate that the shape of the KO-P spectrum is affected mainly by the ablator rho R. Other effects such as ablator-density-profile variations, time evolution of the ablator rho R, fuel-ablator mix and electron temperature variations typically predicted for the ablator play minor roles. C1 [Frenje, J. A.; Li, C. K.; Rygg, J. R.; Seguin, F. H.; Casey, D. T.; Petrasso, R. D.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA. [Delettrez, J.; Glebov, V. Yu.; Sangster, T. C.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA. [Landen, O.; Hatchett, S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Frenje, JA (reprint author), MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA. NR 31 TC 11 Z9 12 U1 0 U2 1 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD FEB PY 2009 VL 16 IS 2 AR 022702 DI 10.1063/1.2965829 PG 8 WC Physics, Fluids & Plasmas SC Physics GA 413NS UT WOS:000263800400038 ER PT J AU Hahm, TS Wang, L Madsen, J AF Hahm, T. S. Wang, Lu Madsen, J. TI Fully electromagnetic nonlinear gyrokinetic equations for tokamak edge turbulence SO PHYSICS OF PLASMAS LA English DT Article DE electrostatics; Maxwell equations; perturbation theory; phase space methods; plasma fluctuations; plasma kinetic theory; plasma turbulence; Tokamak devices; Vlasov equation ID DIII-D TOKAMAK; REVERSED MAGNETIC SHEAR; DRIFT ALFVEN TURBULENCE; CORE TRANSPORT BARRIERS; RADIAL ELECTRIC-FIELD; GUIDING CENTER MOTION; ZONAL FLOWS; POLOIDAL ROTATION; ENHANCED CONFINEMENT; GYROFLUID EQUATIONS AB An energy conserving set of the fully electromagnetic nonlinear gyrokinetic Vlasov equation and Maxwell's equations, which is applicable to both L-mode turbulence with large amplitude and H-mode turbulence in the presence of high ExB shear has been derived. The phase-space action variational Lie perturbation method ensures the preservation of the conservation laws of the underlying Vlasov-Maxwell system. Generalized ordering takes rho(i)