4.7 Article

Study of high-pT charged particle suppression in PbPb compared to pp collisions at √sNN=2.76 TeV

Journal

EUROPEAN PHYSICAL JOURNAL C
Volume 72, Issue 3, Pages -

Publisher

SPRINGER
DOI: 10.1140/epjc/s10052-012-1945-x

Keywords

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Funding

  1. Austrian Federal Ministry of Science and Research
  2. Belgium Fonds de la Recherche Scientifique
  3. Fonds voor Wetenschappelijk Onderzoek
  4. Brazilian Funding Agency CNPq
  5. Brazilian Funding Agency CAPES
  6. Brazilian Funding Agency FAPERJ
  7. Brazilian Funding Agency FAPERJ, and FAPESP
  8. Bulgarian Ministry of Education and Science
  9. CERN
  10. Chinese Academy of Sciences
  11. Ministry of Science and Technology
  12. National Natural Science Foundation of China
  13. Colombian Funding Agency (COLCIENCIAS)
  14. Croatian Ministry of Science, Education and Sport
  15. Research Promotion Foundation, Cyprus
  16. Ministry of Education and Research [SF0690030s09]
  17. European Regional Development Fund, Estonia
  18. Academy of Finland
  19. Finnish Ministry of Education and Culture
  20. Helsinki Institute of Physics
  21. Institut National de Physique Nucleaire et de Physique des Particules/CNRS
  22. Commissariat a l'Energie Atomique et aux Energies Alternatives/CEA, France
  23. Bundesministerium fur Bildung und Forschung
  24. Deutsche Forschungsgemeinschaft
  25. Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
  26. General Secretariat for Research and Technology, Greece
  27. National Scientific Research Foundation
  28. National Office for Research and Technology, Hungary
  29. Department of Atomic Energy
  30. Department of Science and Technology, India
  31. Institute for Studies in Theoretical Physics and Mathematics, Iran
  32. Science Foundation, Ireland
  33. Istituto Nazionale di Fisica Nucleare, Italy
  34. Korean Ministry of Education, Science and Technology
  35. NRF, Korea
  36. Lithuanian Academy of Sciences
  37. Mexican Funding Agency CINVESTAV
  38. Mexican Funding Agency CONACYT
  39. Mexican Funding Agency SEP
  40. Mexican Funding Agency UASLP-FAI
  41. Ministry of Science and Innovation, New Zealand
  42. Pakistan Atomic Energy Commission
  43. Ministry of Science and Higher Education
  44. National Science Centre, Poland
  45. Fundacao para a Ciencia e a Tecnologia, Portugal
  46. JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan)
  47. Ministry of Education and Science of the Russian Federation
  48. Federal Agency of Atomic Energy of the Russian Federation
  49. Russian Academy of Sciences
  50. Russian Foundation for Basic Research
  51. Ministry of Science and Technological Development of Serbia
  52. Ministerio de Ciencia e Innovacion
  53. Programa Consolider-Ingenio, Spain
  54. Swiss Funding Agency ETH Board
  55. Swiss Funding Agency ETH Zurich
  56. Swiss Funding Agency PSI
  57. Swiss Funding Agency SNF
  58. Swiss Funding Agency UniZH
  59. Swiss Funding Agency Canton Zurich
  60. Swiss Funding Agency SER
  61. National Science Council, Taipei
  62. Scientific and Technical Re-search Council of Turkey
  63. Turkish Atomic Energy Authority
  64. Science and Technology Facilities Council, UK
  65. US Department of Energy
  66. US National Science Foundation
  67. Marie-Curie programme
  68. European Research Council (European Union)
  69. Leventis Foundation
  70. A. P. Sloan Foundation
  71. Alexander von Humboldt Foundation
  72. Belgian Federal Science Policy Office
  73. Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  74. Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
  75. Council of Science and Industrial Research, India
  76. HOMING PLUS of Foundation for Polish Science
  77. European Union
  78. Direct For Mathematical & Physical Scien
  79. Division Of Physics [0906479] Funding Source: National Science Foundation
  80. Science and Technology Facilities Council [ST/I505580/1, ST/I002200/1, PP/D004284/1, ST/F006748/1, CMS, ST/G502347/1, ST/F007434/1, ST/K001604/1 DMUK, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/K001604/1 MICE/UKNF, ST/H000925/1, GRIDPP, ST/I005912/1, ST/I003622/1 GRIDPP, ST/F007094/1, ST/K001604/1, ST/K001604/1 T2K, ST/J004901/1, PP/E002803/1, ST/I505572/1, ST/I000410/1, ST/K001604/1 LHCb, ST/J005665/1, ST/K001604/1 SuperNEMO, ST/K001604/1 CMS Upgrade, ST/I005912/1 GRIDPP] Funding Source: researchfish
  81. STFC [ST/H00081X/2, ST/K001604/1, ST/F007434/1, ST/I505572/1, ST/I002200/1, ST/J004901/1, ST/F007094/1, ST/J005665/1, ST/I505580/1, ST/I005912/1, ST/I000410/1, PP/E002803/1, ST/H000925/1, ST/F006748/1, ST/G502347/1] Funding Source: UKRI

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The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at root s(NN) = 2.76 TeV by the CMS experiment at the LHC. In the transverse momentum range p(T) = 5-10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 7 compared to the pp yield scaled by the number of incoherent nucleon-nucleon collisions. At higher p(T), this suppression is significantly reduced, approaching roughly a factor of 2 for particles with p(T) in the range p(T) = 40-100 GeV/c.

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