4.8 Article

Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p plus Pb Collisions at √sNN=5.02 TeV

Journal

PHYSICAL REVIEW LETTERS
Volume 110, Issue 8, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.082302

Keywords

-

Funding

  1. State Committee of Science
  2. Calouste Gulbenkian Foundation
  3. Lisbon and Swiss Fonds Kidagan, Armenia
  4. Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
  5. Financiadora de Estudos e Projetos (FINEP)
  6. Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
  7. National Natural Science Foundation of China (NSFC)
  8. Chinese Ministry of Education (CMOE)
  9. Ministry of Science and Technology of China (MSTC)
  10. Ministry of Education and Youth of the Czech Republic
  11. Danish Natural Science Research Council
  12. Carlsberg Foundation
  13. Danish National Research Foundation
  14. European Research Council under the European Community's Seventh Framework Programme
  15. Helsinki Institute of Physics
  16. Academy of Finland
  17. French CNRS-IN2P3
  18. CEA, France
  19. German BMBF
  20. Region Pays de Loire
  21. Region Alsace
  22. Region Auvergne
  23. Helmholtz Association
  24. General Secretariat for Research and Technology
  25. Ministry of Development, Greece
  26. Hungarian OTKA and National Office for Research and Technology (NKTH)
  27. Department of Atomic Energy
  28. Department of Science and Technology of the Government of India
  29. Istituto Nazionale di Fisica Nucleare (INFN)
  30. Centro Fermi-Museo Storico della Fisica e Centro Studi e Ricerche, Italy
  31. Joint Institute for Nuclear Research, Dubna
  32. National Research Foundation of Korea (NRF)
  33. CONACYT
  34. DGAPA
  35. Mexico
  36. ALFA-EC
  37. HELEN Program (High-Energy physics Latin-American-European Network)
  38. Stichting voor Fundamenteel Onderzoek der Materie (FOM)
  39. Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
  40. Research Council of Norway (NFR)
  41. Polish Ministry of Science and Higher Education
  42. National Authority for Scientific Research-NASR (Autoritatea Nationala. pentru Cercetare Stiintifica-ANCS)
  43. Ministry of Education and Science of Russian Federation
  44. International Science and Technology Center
  45. Russian Academy of Sciences
  46. Russian Federal Agency of Atomic Energy
  47. Russian Federal Agency for Science and Innovations
  48. CERN-INTAS
  49. Ministry of Education of Slovakia
  50. Department of Science and Technology, South Africa
  51. CIEMAT
  52. EELA
  53. Ministerio de Educacion y Ciencia of Spain
  54. Xunta de Galicia (Conselleria de Educacion)
  55. CEADEN
  56. Swedish Research Council
  57. Knut & Alice Wallenberg Foundation (KAW)
  58. UkraineMinistry of Education and Science
  59. United Kingdom Science and Technology Facilities Council (STFC)
  60. United States Department of Energy
  61. United States National Science Foundation
  62. State of Texas
  63. State of Ohio
  64. STFC [ST/J000140/1] Funding Source: UKRI
  65. Science and Technology Facilities Council [ST/J000140/1] Funding Source: researchfish
  66. Direct For Mathematical & Physical Scien
  67. Division Of Physics [0968903] Funding Source: National Science Foundation
  68. Division Of Physics
  69. Direct For Mathematical & Physical Scien [1305280, 0969966] Funding Source: National Science Foundation
  70. Grants-in-Aid for Scientific Research [23340074, 23244055, 22244022, 20224014] Funding Source: KAKEN

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The transverse momentum (pT) distribution of primary charged particles is measured in minimum bias (non-single-diffractive) p + Pb collisions at root(NN)-N-s = 5.02 TeV with the ALICE detector at the LHC. The pT spectra measured near central rapidity in the range 0.5< p(T) < 20 GeV/c exhibit a weak pseudorapidity dependence. The nuclear modification factor R-pPb is consistent with unity for p(T) above 2 GeV/c. This measurement indicates that the strong suppression of hadron production at high p(T) observed in Pb + Pb collisions at the LHC is not due to an initial-state effect. The measurement is compared to theoretical calculations. DOI: 10.1103/PhysRevLett.110.082302

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