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Suppression of high transverse momentum D mesons in central Pb-Pb collisions at ?{sNN}=2.76 TeV
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- 作者:The ALICE Collaboration
B. Abelev (68) J. Adam (33) D. Adamová (73) A. M. Adare (120) M. M. Aggarwal (77) G. Aglieri Rinella (29) A. G. Agocs (60) A. Agostinelli (21) S. Aguilar Salazar (56) Z. Ahammed (116) N. Ahmad (13) A. Ahmad Masoodi (13) S. U. Ahn (6336) A. Akindinov (46) D. Aleksandrov (88) B. Alessandro (94) R. Alfaro Molina (56) A. Alici (979) A. Alkin (2) E. Almaráz Avi?a (56) J. Alme (31) T. Alt (35) V. Altini (27) S. Altinpinar (14) I. Altsybeev (117) C. Andrei (70) A. Andronic (85) V. Anguelov (82) J. Anielski (54) C. Anson (15) T. Anti?i? (86) F. Antinori (93) P. Antonioli (97) L. Aphecetche (102) H. Appelsh?user (52) N. Arbor (64) S. Arcelli (21) A. Arend (52) N. Armesto (12) R. Arnaldi (94) T. Aronsson (120) I. C. Arsene (85) M. Arslandok (52) A. Asryan (117) A. Augustinus (29) R. Averbeck (85) T. C. Awes (74) J. ?yst? (37) M. D. Azmi (13) M. Bach (35) A. Badalà (99) Y. W. Baek (6336) R. Bailhache (52) R. Bala (94) R. Baldini Ferroli (9) A. Baldisseri (11) A. Baldit (63) F. 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Zhu (39) J. Zhu (39) J. Zhu (39) A. Zichichi (219) A. Zimmermann (82) G. Zinovjev (2) Y. Zoccarato (109) M. Zynovyev (2) - 关键词:Keywords Heavy Ions
- 刊名:Journal of High Energy Physics
- 出版年:2012
- 出版时间:September 2012
- 年:2012
- 卷:2012
- 期:9
- 全文大小:1.1 MB
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Departamento de Física de Partículas and IGFAE, Universidad de Santiago de Compostela, Santiago de Compostela, Spain13. Department of Physics Aligarh Muslim University, Aligarh, India14. Department of Physics and Technology, University of Bergen, Bergen, Norway15. Department of Physics, Ohio State University, Columbus, Ohio, United States16. Department of Physics, Sejong University, Seoul, South Korea17. Department of Physics, University of Oslo, Oslo, Norway18. Dipartimento di Fisica dell’Università and Sezione INFN, Cagliari, Italy19. Dipartimento di Fisica dell’Università and Sezione INFN, Padova, Italy20. Dipartimento di Fisica dell’Università and Sezione INFN, Trieste, Italy21. Dipartimento di Fisica dell’Università and Sezione INFN, Bologna, Italy22. Dipartimento di Fisica dell’Università ‘La Sapienza-and Sezione INFN, Rome, Italy23. Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN, Catania, Italy24. Dipartimento di Fisica ‘E.R. Caianiello-dell’Università and Gruppo Collegato INFN, Salerno, Italy25. Dipartimento di Fisica Sperimentale dell’Università and Sezione INFN, Turin, Italy26. Dipartimento di Scienze e Tecnologie Avanzate dell’Università del Piemonte Orientale and Gruppo Collegato INFN, Alessandria, Italy27. Dipartimento Interateneo di Fisica ‘M. Merlin-and Sezione INFN, Bari, Italy28. Division of Experimental High Energy Physics, University of Lund, Lund, Sweden29. European Organization for Nuclear Research (CERN), Geneva, Switzerland30. Fachhochschule K?ln, K?ln, Germany31. Faculty of Engineering, Bergen University College, Bergen, Norway32. Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia33. Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech Republic34. Faculty of Science, P.J. ?afárik University, Ko?ice, Slovakia35. Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe-Universit?t Frankfurt, Frankfurt, Germany36. Gangneung-Wonju National University, Gangneung, South Korea37. Helsinki Institute of Physics (HIP) and University of Jyv?skyl?, Jyv?skyl?, Finland38. Hiroshima University, Hiroshima, Japan39. Hua-Zhong Normal University, Wuhan, China40. Indian Institute of Technology, Mumbai, India41. Indian Institute of Technology Indore (IIT), Indore, India42. Institut de Physique Nucléaire d’Orsay (IPNO), Université Paris-Sud, CNRS-IN2P3, Orsay, France43. Institute for High Energy Physics, Protvino, Russia44. Institute for Nuclear Research, Academy of Sciences, Moscow, Russia45. Nikhef, National Institute for Subatomic Physics and Institute for Subatomic Physics of Utrecht University, Utrecht, Netherlands46. Institute for Theoretical and Experimental Physics, Moscow, Russia47. Institute of Experimental Physics, Slovak Academy of Sciences, Ko?ice, Slovakia48. Institute of Physics, Bhubaneswar, India49. Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic50. Institute of Space Sciences (ISS), Bucharest, Romania51. Institut für Informatik, Johann Wolfgang Goethe-Universit?t Frankfurt, Frankfurt, Germany52. Institut für Kernphysik, Johann Wolfgang Goethe-Universit?t Frankfurt, Frankfurt, Germany53. Institut für Kernphysik, Technische Universit?t Darmstadt, Darmstadt, Germany54. Institut für Kernphysik, Westf?lische Wilhelms-Universit?t Münster, Münster, Germany55. Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico56. Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico57. Institut of Theoretical Physics, University of Wroclaw, Wroclaw, Poland58. Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg, CNRS-IN2P3, Strasbourg, France59. Joint Institute for Nuclear Research (JINR), Dubna, Russia60. KFKI Research Institute for Particle and Nuclear Physics, Hungarian Academy of Sciences, Budapest, Hungary61. Kirchhoff-Institut für Physik, Ruprecht-Karls-Universit?t Heidelberg, Heidelberg, Germany62. Korea Institute of Science and Technology Information, Daejeon, South Korea63. Laboratoire de Physique Corpusculaire (LPC), Clermont Université, Université Blaise Pascal, CNRS-IN2P3, Clermont-Ferrand, France64. Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier, CNRS-IN2P3, Institut Polytechnique de Grenoble, Grenoble, France65. Laboratori Nazionali di Frascati, INFN, Frascati, Italy66. Laboratori Nazionali di Legnaro, INFN, Legnaro, Italy67. Lawrence Berkeley National Laboratory, Berkeley, California, United States68. Lawrence Livermore National Laboratory, Livermore, California, United States69. Moscow Engineering Physics Institute, Moscow, Russia70. National Institute for Physics and Nuclear Engineering, Bucharest, Romania71. Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark72. Nikhef, National Institute for Subatomic Physics, Amsterdam, Netherlands73. Nuclear Physics Institute, Academy of Sciences of the Czech Republic, ?e? u Prahy, Czech Republic74. Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States75. Petersburg Nuclear Physics Institute, Gatchina, Russia76. Physics Department, Creighton University, Omaha, Nebraska, United States77. Physics Department, Panjab University, Chandigarh, India78. Physics Department, University of Athens, Athens, Greece79. Physics Department, University of Cape Town, iThemba LABS, Cape Town, South Africa80. Physics Department, University of Jammu, Jammu, India81. Physics Department, University of Rajasthan, Jaipur, India82. Physikalisches Institut, Ruprecht-Karls-Universit?t Heidelberg, Heidelberg, Germany83. Purdue University, West Lafayette, Indiana, United States84. Pusan National University, Pusan, South Korea85. Research Division and ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany86. Rudjer Bo?kovi? Institute, Zagreb, Croatia87. Russian Federal Nuclear Center (VNIIEF), Sarov, Russia88. Russian Research Centre Kurchatov Institute, Moscow, Russia89. Saha Institute of Nuclear Physics, Kolkata, India90. School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom91. Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Lima, Peru92. Sezione INFN, Trieste, Italy93. Sezione INFN, Padova, Italy94. Sezione INFN, Turin, Italy95. Sezione INFN, Rome, Italy96. Sezione INFN, Cagliari, Italy97. Sezione INFN, Bologna, Italy98. Sezione INFN, Bari, Italy99. Sezione INFN, Catania, Italy100. Soltan Institute for Nuclear Studies, Warsaw, Poland101. Nuclear Physics Group, STFC Daresbury Laboratory, Daresbury, United Kingdom102. SUBATECH, Ecole des Mines de Nantes, Université de Nantes, CNRS-IN2P3, Nantes, France103. Technical University of Split FESB, Split, Croatia104. The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland105. Physics Department, The University of Texas at Austin, Austin, TX, United States106. Universidad Autónoma de Sinaloa, Culiacán, Mexico107. Universidade de S?o Paulo (USP), S?o Paulo, Brazil108. Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil109. Université de Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, Villeurbanne, France110. University of Houston, Houston, Texas, United States111. University of Technology and Austrian Academy of Sciences, Vienna, Austria112. University of Tennessee, Knoxville, Tennessee, United States113. University of Tokyo, Tokyo, Japan114. University of Tsukuba, Tsukuba, Japan115. Eberhard Karls Universit?t Tübingen, Tübingen, Germany116. Variable Energy Cyclotron Centre, Kolkata, India117. V. Fock Institute for Physics, St. Petersburg State University, St. Petersburg, Russia118. Warsaw University of Technology, Warsaw, Poland119. Wayne State University, Detroit, Michigan, United States120. Yale University, New Haven, Connecticut, United States121. Yerevan Physics Institute, Yerevan, Armenia122. Yildiz Technical University, Istanbul, Turkey123. Yonsei University, Seoul, South Korea124. Zentrum für Technologietransfer und Telekommunikation (ZTT), Fachhochschule Worms, Worms, Germany125. M.V.Lomonosov Moscow State University, D.V.Skobeltsyn Institute of Nuclear Physics, Moscow, Russia126. ”Vin?a-Institute of Nuclear Sciences, Belgrade, Serbia
- ISSN:1029-8479
文摘
The production of the prompt charm mesons D0, D+, D*+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy ?{sNN}=2.76 TeV \sqrt{{{s_{\mathrm{NN}}}}}=2.76\;\mathrm{TeV} per nucleon-nucleon collision. The p t-differential production yields in the range 2?<?p t?<?16 GeV/c at central rapidity, |y|?<?0.5, were used to calculate the nuclear modification factor R AA with respect to a proton-proton reference obtained from the cross section measured at ?s=7 TeV \sqrt{s}=7\;\mathrm{TeV} and scaled to ?s=2.76 TeV \sqrt{s}=2.76\;\mathrm{TeV} . For the three meson species, R AA shows a suppression by a factor 3–4, for transverse momenta larger than 5 GeV/c in the 20% most central collisions. The suppression is reduced for peripheral collisions.
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