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Superconductivity and physical properties of Ba24Si100 determined from electric transport, specific-heat capacity, and magnetic susceptibility measurements

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Physical Review B 2005年第14期72卷 144504-144504页

作者： Takeshi Rachi Harukazu Yoshino Ryotaro Kumashiro Masaki Kitajima Kensuke Kobayashi Keiichi Yokogawa Keizo Murata Noriaki Kimura Haruyoshi Aoki Hiroshi Fukuoka Syoji Yamanaka Hidekazu Shimotani Taishi Takenobu Yoshihiro Iwasa Takahiko Sasaki Norio Kobayashi Yuji Miyazaki Kazuya Saito FangZhun Guo Keisuke Kobayashi Keiichi Osaka Kenichi Kato Masaki Takata Katsumi Tanigaki Department of Physics Graduate School of Science Tohoku University and CREST-JST 6-3 Aoba Aramaki Aoba-ku Sendai Miyagi 980-8578 Japan Department of Physics Graduate School of Science Osaka City University 3-3-138 Sugimoto Sumiyoshi Osaka 558-8585 Japan Department of Physics Graduate School of Science Tohoku University 6–3 Aoba Aramaki Aoba-ku Sendai Miyagi 980-8578 Japan Department of Applied Chemistry Faculty of Engineering Hiroshima University Higashi-Hiroshima Hiroshima 739-8527 Japan Institute for Materials Research Tohoku University and CREST-JST 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan Department of Chemistry Graduate School of Science Osaka University Toyonaka Osaka 560-0043 Japan Department of Chemistry Faculty of Science Tsukuba University 1-1-1 Tennoudai Tsukuba Ibaraki Japan SPring-8 Japan Synchrotron Radiation Research Institute 1-1-1 Kouto Mikazuki-cho Sayo-gun Hyogo 679-5198 Japan SPring-8 Japan Synchrotron Radiation Research Institute and CREST–JST 1-1-1 Kouto Mikazuki-cho Sayo-gun Hyogo 679-5198 Japan

Both Ba24Si100 and Ba24Ge100 with crystallographically identical structure are found to be superconducting at 1.4 and 0.27 K, respectively. Physical properties of this superconductor Ba24Si100 are studied by electric transport, specific heat capacity, and magnetic susceptibility measurements. The density of states at the Fermi level NEF=0.148 states eV−1(Siatom)−1 and a distinct jump of Cp at the superconducting transition temperature ΔCp=0.272JK−1mol−1 are obtained. An exponential fit of Cp below the superconducting states gives an energy gap 2Δ=0.423meV and shows that this is a superconductor having s-wave character or isotropic energy gap. On the basis of our experimental data other important physical parameters are also derived.

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Experiments on Random Packings of Ellipsoids

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Physical Review Letters 2005年第19期94卷 198001-198001页

作者： Weining Man Aleksandar Donev Frank H. Stillinger Matthew T. Sullivan William B. Russel David Heeger Souheil Inati Salvatore Torquato P. M. Chaikin Department of Physics and Princeton Institute for the Science and Technology of Materials Princeton University Princeton New Jersey 08544 USA Program in Applied and Computational Mathematics and Princeton Institute for the Science and Technology of Materials Princeton University Princeton New Jersey 08544 USA Department of Chemistry and Princeton Institute for the Science and Technology of Materials Princeton University Princeton New Jersey 08544 USA Department of Chemical Engineering and Princeton Institute for the Science and Technology of Materials Princeton University Princeton New Jersey 08544 USA Department of Psychology and Center for Neural Science New York University New York New York 10003 USA

Recent simulations indicate that ellipsoids can pack randomly more densely than spheres and, remarkably, for axes ratios near 1.25∶1∶0.8 can approach the densest crystal packing (fcc) of spheres, with a packing fraction of 74%. We demonstrate that such dense packings are realizable. We introduce a novel way of determining packing density for a finite sample that minimizes surface effects. We have fabricated ellipsoids and show that, in a sphere, the radial packing fraction ϕ(r) can be obtained from V(h), the volume of added fluid to fill the sphere to height h. We also obtain ϕ(r) from a magnetic resonance imaging scan. The measurements of the overall density ϕavr, ϕ(r) and the core density ϕ0=0.74±0.005 agree with simulations.

关键词： .ellipsoids Princeton New Jersey

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Clocking Femtosecond X Rays

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Physical Review Letters 2005年第11期94卷 114801-114801页

作者： A. L. Cavalieri D. M. Fritz S. H. Lee P. H. Bucksbaum D. A. Reis J. Rudati D. M. Mills P. H. Fuoss G. B. Stephenson C. C. Kao D. P. Siddons D. P. Lowney A. G. MacPhee D. Weinstein R. W. Falcone R. Pahl J. Als-Nielsen C. Blome S. Düsterer R. Ischebeck H. Schlarb H. Schulte-Schrepping Th. Tschentscher J. Schneider O. Hignette F. Sette K. Sokolowski-Tinten H. N. Chapman R. W. Lee T. N. Hansen O. Synnergren J. Larsson S. Techert J. Sheppard J. S. Wark M. Bergh C. Caleman G. Huldt D. van der Spoel N. Timneanu J. Hajdu R. A. Akre E. Bong P. Emma P. Krejcik J. Arthur S. Brennan K. J. Gaffney A. M. Lindenberg K. Luening J. B. Hastings FOCUS Center Departments of Physics and Applied Physics Program University of Michigan Ann Arbor MI 48109 USA Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA Materials Science Division Argonne National Laboratory Argonne IL 60439 USA National Synchrotron Light Source Brookhaven National Laboratory Upton NY 11973 USA Department of Physics University of California Berkeley CA 94720 USA Consortium for Advanced Radiation Sources The University of Chicago Chicago IL 60637 USA Niels Bohr Institute Copenhagen University 2100 Copenhagen Ø Denmark Deutsches Elektronen-Synchrotron DESY Notkestrasse 85 22607 Hamburg Germany European Synchrotron Radiation Facility 38043 Grenoble Cedex 9 France Institut für Optik und Quantenelektronik Friedrich-Schiller-Universität Jena Max-Wien-Platz 1 07743 Jena Germany Physics Department Lawrence Livermore National Laboratory Livermore CA 94550 USA Department of Physics Lund Institute of Technology P.O. Box 118 S-22100 Lund Sweden Max Plank Institute for Biophysical Chemistry Am Faßberg 11 37077 Göttingen Germany Department of Physics Clarendon Laboratory Parks Road University of Oxford Oxford OX1 3PU United Kingdom Department of Cell and Molecular Biology Biomedical Centre Uppsala University SE-75124 Uppsala Sweden Stanford Linear Accelerator Center Menlo Park CA 94025 USA Stanford Synchrotron Radiation Laboratory/SLAC Menlo Park CA 94025 USA

Linear-accelerator-based sources will revolutionize ultrafast x-ray science due to their unprecedented brightness and short pulse duration. However, time-resolved studies at the resolution of the x-ray pulse duration are hampered by the inability to precisely synchronize an external laser to the accelerator. At the Sub-Picosecond Pulse Source at the Stanford Linear-Accelerator Center we solved this problem by measuring the arrival time of each high energy electron bunch with electro-optic sampling. This measurement indirectly determined the arrival time of each x-ray pulse relative to an external pump laser pulse with a time resolution of better than 60 fs rms.

关键词： X rays

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Midrapidity direct-photon production in p+p collisions at s=200 GeV

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Physical Review D 2005年第7期71卷 071102(R)-071102(R)页

作者： S. S. Adler S. Afanasiev C. Aidala N. N. Ajitanand Y. Akiba J. Alexander R. Amirikas L. Aphecetche S. H. Aronson R. Averbeck T. C. Awes R. Azmoun V. Babintsev A. Baldisseri K. N. Barish P. D. Barnes B. Bassalleck S. Bathe S. Batsouli V. Baublis A. Bazilevsky S. Belikov Y. Berdnikov S. Bhagavatula J. G. Boissevain H. Borel S. Borenstein M. L. Brooks D. S. Brown N. Bruner D. Bucher H. Buesching V. Bumazhnov G. Bunce J. M. Burward-Hoy S. Butsyk X. Camard J.-S. Chai P. Chand W. C. Chang S. Chernichenko C. Y. Chi J. Chiba M. Chiu I. J. Choi J. Choi R. K. Choudhury T. Chujo V. Cianciolo Y. Cobigo B. A. Cole P. Constantin D. d’Enterria G. David H. Delagrange A. Denisov A. Deshpande E. J. Desmond A. Devismes O. Dietzsch O. Drapier A. Drees K. A. Drees R. du Rietz A. Durum D. Dutta Y. V. Efremenko K. El Chenawi A. Enokizono H. En’yo S. Esumi L. Ewell D. E. Fields F. Fleuret S. L. Fokin B. D. Fox Z. Fraenkel J. E. Frantz A. Franz A. D. Frawley S.-Y. Fung S. Garpman T. K. Ghosh A. Glenn G. Gogiberidze M. Gonin J. Gosset Y. Goto R. Granier de Cassagnac N. Grau S. V. Greene M. Grosse Perdekamp W. Guryn H.-Å. Gustafsson T. Hachiya J. S. Haggerty H. Hamagaki A. G. Hansen E. P. Hartouni M. Harvey R. Hayano N. Hayashi X. He M. Heffner T. K. Hemmick J. M. Heuser M. Hibino J. C. Hill W. Holzmann K. Homma B. Hong A. Hoover T. Ichihara V. V. Ikonnikov K. Imai D. Isenhower M. Ishihara M. Issah A. Isupov B. V. Jacak W. Y. Jang Y. Jeong J. Jia O. Jinnouchi B. M. Johnson S. C. Johnson K. S. Joo D. Jouan S. Kametani N. Kamihara J. H. Kang S. S. Kapoor K. Katou S. Kelly B. Khachaturov A. Khanzadeev J. Kikuchi D. H. Kim D. J. Kim D. W. Kim E. Kim G.-B. Kim H. J. Kim E. Kistenev A. Kiyomichi K. Kiyoyama C. Klein-Boesing H. Kobayashi L. Kochenda V. Kochetkov D. Koehler T. Kohama M. Kopytine D. Kotchetkov A. Kozlov P. J. Kroon C. H. Kuberg K. Kurita Y. Kuroki M. J. Kweon Y. Kwon G. S. Kyle R. Lacey V. Ladygin J. G. Lajoie A. Lebedev S. Leckey D. M. Lee S. Lee M. J. Leitch X. H. Li H. Lim A. Litvinenko M. X. Liu Y. Liu C. F. Maguire Y. I. Makdi Brookhaven National Laboratory Upton New York 11973-5000 USA Joint Institute for Nuclear Research 141980 Dubna Moscow Region Russia Chemistry Department Stony Brook University SUNY Stony Brook New York 11794-3400 USA KEK High Energy Accelerator Research Organization Tsukuba-shi Ibaraki-ken 305-0801 Japan RIKEN (The Institute of Physical and Chemical Research) Wako Saitama 351-0198 Japan Florida State University Tallahassee Florida 32306 USA SUBATECH (Ecole des Mines de Nantes CNRS-IN2P3 Université de Nantes) BP 20722-44307 Nantes France Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 USA Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Institute for High Energy Physics (IHEP) Protvino Russia Dapnia CEA Saclay F-91191 Gif-sur-Yvette France University of California–Riverside Riverside California 92521 USA Los Alamos National Laboratory Los Alamos New Mexico 87545 USA University of New Mexico Albuquerque New Mexico 87131 USA Institut für Kernphysik University of Muenster D-48149 Muenster Germany Columbia University New York New York 10027 USA and Nevis Laboratories Irvington New York 10533 USA PNPI Petersburg Nuclear Physics Institute Gatchina Russia RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973-5000 USA Iowa State University Ames Iowa 50011 USA St. Petersburg State Technical University St. Petersburg Russia Laboratoire Leprince-Ringuet Ecole Polytechnique CNRS-IN2P3 Route de Saclay F-91128 Palaiseau France New Mexico State University Las Cruces New Mexico 88003 USA Lawrence Livermore National Laboratory Livermore California 94550 USA KAERI Cyclotron Application Laboratory Seoul Korea Bhabha Atomic Research Centre Bombay 400 085 India Institute of Physics Academia Sinica Taipei 11529 Taiwan Yonsei University IPAP Seoul 120-749 Korea Kangnung National University Kangnung 210-702 Korea Instituto de Física Universidade de São Paulo Caixa

A measurement of direct photons in p+p collisions at s=200 GeV is presented. A photon excess above background from π0→γ+γ, η→γ+γ and other decays is observed in the transverse momentum range 5.5<pT<7 G...

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Titelbild: Direct Observation of Hydrogen Molecules Adsorbed onto a Microporous Coordination Polymer (Angew. Chem. 6/2005)

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Angewandte Chemie 2005年第6期117卷

作者： Yoshiki Kubota Masaki Takata Ryotaro Matsuda Ryo Kitaura Susumu Kitagawa Kenichi Kato Makoto Sakata Tatsuo C. Kobayashi Department of Environmental Sciences Faculty of Science Osaka Women's University Sakai Osaka 590‐0035 Japan Fax: (+81) 72‐222‐4791 Japan Synchrotron Radiation Research Institute/SPring‐8 Sayo‐gun Hyogo 679‐5198 Japan CREST Japan Science and Technology Agency Department of Synthetic Chemistry and Biological Chemistry Graduate School of Engineering Kyoto University Katsura Kyoto 615‐8510 Japan Present address: Toyota Central Research and Development Laboratories Inc. Nagakute Aichi 480‐1192 Japan Department of Applied Physics Nagoya University Nagoya 464‐8603 Japan Department of Physics Okayama University Okayama 700‐8530 Japan

Grundlegende Strukturinformationen über Wasserstoffmoleküle, die in Nanokanälen adsorbiert sind, werden für das rationale Design neuartiger metall‐organischer poröser Materialien als Wasserstoffspeicher benötigt. Das Titelbild zeigt die Ladungsdichteverteilung von Wasserstoffmolekülen in den Nanokanälen eines Kupferkoordinationspolymers. Die Wasserstoffmoleküle befinden sich in den Taschen der passend dimensionierten Nanokanäle. Weitere Einzelheiten sind in der Zuschrift von Y. Kubota et al. auf S. 942 ff. zu finden.

关键词： Metall‐organische Gerüste Mikroporöse Materialien Röntgenbeugung Strukturaufklärung Wasserstoffadsorption

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Direct Observation of Hydrogen Molecules Adsorbed onto a Microporous Coordination Polymer†

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Angewandte Chemie 2005年第6期117卷

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Cover Picture: Direct Observation of Hydrogen Molecules Adsorbed onto a Microporous Coordination Polymer (Angew. Chem. Int. Ed. 6/2005)

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Angewandte Chemie International Edition 2005年第6期44卷

作者： Yoshiki Kubota Dr. Masaki Takata Dr. Ryotaro Matsuda Ryo Kitaura Dr. Susumu Kitagawa Prof. Dr. Kenichi Kato Makoto Sakata Prof. Dr. Tatsuo C. Kobayashi Prof. Dr. Department of Environmental Sciences Faculty of Science Osaka Women's University Sakai Osaka 590-0035 Japan Fax: (+81) 72-222-4791 Japan Synchrotron Radiation Research Institute/SPring-8 Sayo-gun Hyogo 679-5198 Japan CREST Japan Science and Technology Agency Department of Synthetic Chemistry and Biological Chemistry Graduate School of Engineering Kyoto University Katsura Kyoto 615-8510 Japan Present address: Toyota Central Research and Development Laboratories Inc. Nagakute Aichi 480-1192 Japan Department of Applied Physics Nagoya University Nagoya 464-8603 Japan Department of Physics Okayama University Okayama 700-8530 Japan

Fundamental structural information on hydrogen molecules adsorbed in nanochannels is required for the rational synthetic design of novel metal–organic porous materials as hydrogen-storage materials. The cover picture shows the charge-density distribution of hydrogen molecules adsorbed in the nanochannels of a copper coordination polymer. The hydrogen molecules are located in the pocket cavities of the suitably sized nanochannels. More details can be found in the Communication by Y. Kubota et al. on page 920 ff.

关键词： hydrogen adsorption metal–organic frameworks microporous materials structure elucidation X-ray diffraction

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H-NMR study of Mott insulator κ-(ET)2Cu 2(CN)3 with isotropie triangular lattice

H-NMR study of Mott insulator κ-(ET)2Cu 2(CN)3 with isotrop...

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ISCOM 2003: 5th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets

作者： Shimizu, Y. Miyagawa, K. Oda, K. Kanoda, K. Maesato, M. Saito, G. Division of Chemistry Graduate School of Science Kyoto University Sakyo-ku Kyoto 606-8502 Japan Department of Applied Physics University of Tokyo Hongo Bunkyo-ku Tokyo 113-8656 Japan Kawaguchi Saitama 332-0012 Japan

1H NMR measurement was performed for a single crystal sample of the organic Mott insulator κ-(ET)2Cu2(CN)3 with a nearly Isotropic triangular lattice. The 1H NMR spectra and the spin-lattice relaxation rate, 1/T1, show no indication of magnetic transition down to 30 mK. However, the line shows a slight but gradual broadening accompanied with only a moderate increase in the spin-lattice relaxation rate, 1/T1, below 4 K. It suggests a possible change of spin dynamics of the frustrated quantum spins. © EDP Sciences.

关键词： Lattice constants

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Saturation of Azimuthal Anisotropy in Au+Au Collisions at sNN=62–200 GeV

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Physical Review Letters 2005年第23期94卷 232302-232302页

作者： S. S. Adler S. Afanasiev C. Aidala N. N. Ajitanand Y. Akiba A. Al-Jamel J. Alexander R. Amirikas K. Aoki L. Aphecetche R. Armendariz S. H. Aronson R. Averbeck T. C. Awes B. Azmoun R. Azmoun V. Babintsev A. Baldisseri K. N. Barish P. D. Barnes B. Bassalleck S. Bathe S. Batsouli V. Baublis F. Bauer A. Bazilevsky S. Belikov R. Bennett Y. Berdnikov S. Bhagavatula M. T. Bjorndal J. G. Boissevain H. Borel S. Borenstein K. Boyle M. L. Brooks D. S. Brown N. Bruner D. Bucher H. Buesching V. Bumazhnov G. Bunce J. M. Burward-Hoy S. Butsyk X. Camard S. Campbell J.-S. Chai P. Chand W. C. Chang S. Chernichenko C. Y. Chi J. Chiba M. Chiu I. J. Choi J. Choi R. K. Choudhury T. Chujo V. Cianciolo C. R. Cleven Y. Cobigo B. A. Cole M. P. Comets P. Constantin M. Csanád T. Csörgő D. d’Enterria T. Dahms K. Das G. David H. Delagrange A. Denisov A. Deshpande E. J. Desmond A. Devismes O. Dietzsch A. Dion J. L. Drachenberg O. Drapier A. Drees K. A. Drees A. K. Dubey R. du Rietz A. Durum D. Dutta V. Dzhordzhadze Y. V. Efremenko J. Egdemir K. El Chenawi A. Enokizono H. En’yo B. Espagnon S. Esumi L. Ewell D. E. Fields F. Fleuret S. L. Fokin B. Forestier B. D. Fox Z. Fraenkel J. E. Frantz A. Franz A. D. Frawley Y. Fukao S.-Y. Fung S. Gadrat S. Garpman F. Gastineau M. Germain T. K. Ghosh A. Glenn G. Gogiberidze M. Gonin J. Gosset Y. Goto R. Granier de Cassagnac N. Grau S. V. Greene M. Grosse Perdekamp T. Gunji W. Guryn H.-Å. Gustafsson T. Hachiya A. Hadj Henni J. S. Haggerty M. N. Hagiwara H. Hamagaki A. G. Hansen H. Harada E. P. Hartouni K. Haruna M. Harvey E. Haslum K. Hasuko R. Hayano N. Hayashi X. He M. Heffner T. K. Hemmick J. M. Heuser M. Hibino H. Hiejima J. C. Hill R. Hobbs M. Holmes W. Holzmann K. Homma B. Hong A. Hoover T. Horaguchi H. M. Hur T. Ichihara V. V. Ikonnikov K. Imai M. Inaba D. Isenhower L. Isenhower M. Ishihara T. Isobe M. Issah A. Isupov B. V. Jacak W. Y. Jang Y. Jeong J. Jia J. Jin O. Jinnouchi B. M. Johnson S. C. Johnson K. S. Joo D. Jouan F. Kajihara S. Kametani N. Kamihara M. Kaneta J. H. Kang S. S. Kapoor K. Katou T Brookhaven National Laboratory Upton New York 11973-5000 USA Joint Institute for Nuclear Research 141980 Dubna Moscow Region Russia Columbia University New York New York 10027 USA and Nevis Laboratories Irvington New York 10533 USA Chemistry Department Stony Brook University Stony Brook SUNY New York 11794-3400 USA KEK High Energy Accelerator Research Organization Tsukuba-shi Ibaraki-ken 305-0801 Japan RIKEN (The Institute of Physical and Chemical Research) Wako Saitama 351-0198 Japan RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973-5000 USA New Mexico State University Las Cruces New Mexico 88003 USA Florida State University Tallahassee Florida 32306 USA Kyoto University Kyoto 606-8502 Japan SUBATECH (Ecole des Mines de Nantes CNRS-IN2P3 Université de Nantes) BP 20722 - 44307 Nantes France Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 USA Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Institute for High Energy Physics (IHEP) Protvino Russia Dapnia CEA Saclay F-91191 Gif-sur-Yvette France University of California - Riverside Riverside California 92521 USA Los Alamos National Laboratory Los Alamos New Mexico 87545 USA University of New Mexico Albuquerque New Mexico 87131 USA Institut für Kernphysik University of Muenster D-48149 Muenster Germany PNPI Petersburg Nuclear Physics Institute Gatchina Russia Iowa State University Ames Iowa 50011 USA St. Petersburg State Technical University St. Petersburg Russia Laboratoire Leprince-Ringuet Ecole Polytechnique CNRS-IN2P3 Route de Saclay F-91128 Palaiseau France Lawrence Livermore National Laboratory Livermore California 94550 USA KAERI Cyclotron Application Laboratory Seoul South Korea Bhabha Atomic Research Centre Bombay 400 085 India Institute of Physics Academia Sinica Taipei 11529 Taiwan Yonsei University IPAP Seoul 120-749 Korea Kangnung National University Kangnung 210-702 Korea Vander

New measurements are presented for charged hadron azimuthal correlations at midrapidity in Au+Au collisions at sNN=62.4 and 200 GeV. They are compared to earlier measurements obtained at sNN=130 GeV and in Pb+Pb collisions at sNN=17.2 GeV. Sizeable anisotropies are observed with centrality and transverse momentum (pT) dependence characteristic of elliptic flow (v2). For a broad range of centralities, the observed magnitudes and trends of the differential anisotropy, v2(pT), change very little over the collision energy range sNN=62–200 GeV, indicating saturation of the excitation function for v2 at these energies. Such a saturation may be indicative of the dominance of a very soft equation of state for sNN∼60–200 GeV.

关键词： Gold

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Centrality Dependence of Charm Production from a Measurement of Single Electrons in Au+Au Collisions at sNN=200 GeV

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Physical Review Letters 2005年第8期94卷 082301-082301页

作者： S. S. Adler S. Afanasiev C. Aidala N. N. Ajitanand Y. Akiba J. Alexander R. Amirikas L. Aphecetche S. H. Aronson R. Averbeck T. C. Awes R. Azmoun V. Babintsev A. Baldisseri K. N. Barish P. D. Barnes B. Bassalleck S. Bathe S. Batsouli V. Baublis A. Bazilevsky S. Belikov Y. Berdnikov S. Bhagavatula J. G. Boissevain H. Borel S. Borenstein M. L. Brooks D. S. Brown N. Bruner D. Bucher H. Buesching V. Bumazhnov G. Bunce J. M. Burward-Hoy S. Butsyk X. Camard J.-S. Chai P. Chand W. C. Chang S. Chernichenko C. Y. Chi J. Chiba M. Chiu I. J. Choi J. Choi R. K. Choudhury T. Chujo V. Cianciolo Y. Cobigo B. A. Cole P. Constantin D. G. d'Enterria G. David H. Delagrange A. Denisov A. Deshpande E. J. Desmond A. Devismes O. Dietzsch O. Drapier A. Drees R. du Rietz A. Durum D. Dutta Y. V. Efremenko K. El Chenawi A. Enokizono H. En'yo S. Esumi L. Ewell D. E. Fields F. Fleuret S. L. Fokin B. D. Fox Z. Fraenkel J. E. Frantz A. Franz A. D. Frawley S.-Y. Fung S. Garpman T. K. Ghosh A. Glenn G. Gogiberidze M. Gonin J. Gosset Y. Goto R. Granier de Cassagnac N. Grau S. V. Greene M. Grosse Perdekamp W. Guryn H.-Å. Gustafsson T. Hachiya J. S. Haggerty H. Hamagaki A. G. Hansen E. P. Hartouni M. Harvey R. Hayano N. Hayashi X. He M. Heffner T. K. Hemmick J. M. Heuser M. Hibino J. C. Hill W. Holzmann K. Homma B. Hong A. Hoover T. Ichihara V. V. Ikonnikov K. Imai D. Isenhower M. Ishihara M. Issah A. Isupov B. V. Jacak W. Y. Jang Y. Jeong J. Jia O. Jinnouchi B. M. Johnson S. C. Johnson K. S. Joo D. Jouan S. Kametani N. Kamihara J. H. Kang S. S. Kapoor K. Katou S. Kelly B. Khachaturov A. Khanzadeev J. Kikuchi D. H. Kim D. J. Kim D. W. Kim E. Kim G.-B. Kim H. J. Kim E. Kistenev A. Kiyomichi K. Kiyoyama C. Klein-Boesing H. Kobayashi L. Kochenda V. Kochetkov D. Koehler T. Kohama M. Kopytine D. Kotchetkov A. Kozlov P. J. Kroon C. H. Kuberg K. Kurita Y. Kuroki M. J. Kweon Y. Kwon G. S. Kyle R. Lacey V. Ladygin J. G. Lajoie A. Lebedev S. Leckey D. M. Lee S. Lee M. J. Leitch X. H. Li H. Lim A. Litvinenko M. X. Liu Y. Liu C. F. Maguire Y. I. Makdisi A. Mal Brookhaven National Laboratory Upton New York 11973-5000 USA Joint Institute for Nuclear Research 141980 Dubna Moscow Region Russia Chemistry Department Stony Brook University SUNY Stony Brook New York 11794-3400 USA KEK High Energy Accelerator Research Organization Tsukuba-shi Ibaraki-ken 305-0801 Japan RIKEN (The Institute of Physical and Chemical Research) Wako Saitama 351-0198 Japan Florida State University Tallahassee Florida 32306 USA SUBATECH (Ecole des Mines de Nantes CNRS-IN2P3 Université de Nantes) BP 20722-44307 Nantes France Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 USA Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Institute for High Energy Physics (IHEP) Protvino Russia Dapnia CEA Saclay F-91191 Gif-sur-Yvette France University of California at Riverside Riverside California 92521 USA Los Alamos National Laboratory Los Alamos New Mexico 87545 USA University of New Mexico Albuquerque New Mexico 87131 USA Institut für Kernphysik University of Muenster D-48149 Muenster Germany Columbia University New York New York 10027 USA and Nevis Laboratories Irvington New York 10533 USA PNPI Petersburg Nuclear Physics Institute Gatchina Russia RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973-5000 USA Iowa State University Ames Iowa 50011 USA St. Petersburg State Technical University St. Petersburg Russia Laboratoire Leprince-Ringuet Ecole Polytechnique CNRS-IN2P3 Route de Saclay F-91128 Palaiseau France New Mexico State University Las Cruces New Mexico 88003 USA Lawrence Livermore National Laboratory Livermore California 94550 USA KAERI Cyclotron Application Laboratory Seoul Korea Bhabha Atomic Research Centre Bombay 400 085 India Institute of Physics Academia Sinica Taipei 11529 Taiwan Yonsei University IPAP Seoul 120-749 Korea Kangnung National University Kangnung 210-702 Korea Universidade de São Paulo Instituto de Física Caixa

The PHENIX experiment has measured midrapidity transverse momentum spectra (0.4<pT<4.0 GeV/c) of single electrons as a function of centrality in Au+Au collisions at sNN=200 GeV. Contributions from photon conve... 详细信息

The PHENIX experiment has measured midrapidity transverse momentum spectra (0.4

关键词： Electrons

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