4.7 Article

Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at √sNN=5.02TeV

Journal

PHYSICS LETTERS B
Volume 772, Issue -, Pages 306-329

Publisher

ELSEVIER
DOI: 10.1016/j.physletb.2017.06.053

Keywords

CMS; Heavy ions; Charm-tagging; Heavy-flavor

Funding

  1. BMWFW (Austria)
  2. FWF (Austria)
  3. FNRS (Belgium)
  4. FWO (Belgium)
  5. CNPq (Brazil)
  6. CAPES (Brazil)
  7. FAPERJ (Brazil)
  8. FAPESP (Brazil)
  9. MES (Bulgaria)
  10. CERN
  11. CAS (China)
  12. Ministry of Science and Technology of the People's Republic of China (China)
  13. NSFC (China)
  14. COLCIENCIAS (Colombia)
  15. MSES (Croatia)
  16. CSF (Croatia)
  17. RPF (Cyprus)
  18. SENESCYT (Ecuador)
  19. MoER (Estonia)
  20. ERC IUT (Estonia)
  21. ERDF (Estonia)
  22. Academy of Finland (Finland)
  23. MEC (Finland)
  24. HIP (Finland)
  25. CEA (France)
  26. CNRS/IN2P3 (France)
  27. BMBF (Germany)
  28. DFG (Germany)
  29. HGF (Germany)
  30. GSRT (Greece)
  31. OTKA (Hungary)
  32. NIH (Hungary)
  33. DAE (India)
  34. DST (India)
  35. IPM (Iran)
  36. SFI (Ireland)
  37. INFN (Italy)
  38. MSIP (Republic of Korea)
  39. NRF (Republic of Korea)
  40. LAS (Lithuania)
  41. MOE (Malaysia)
  42. UM (Malaysia)
  43. BUAP (Mexico)
  44. CINVESTAV (Mexico)
  45. CONACYT (Mexico)
  46. LNS (Mexico)
  47. SEP (Mexico)
  48. UASLP-FAI (Mexico)
  49. MBIE (New Zealand)
  50. PAEC (Pakistan)
  51. MSHE (Poland)
  52. NSC (Poland)
  53. FCT (Portugal)
  54. JINR (Dubna) (Russia)
  55. MON (Russia)
  56. ROSATOM (Russia)
  57. RAS (Russia)
  58. RFBR (Russia)
  59. RAEP (Russia)
  60. MESTD (Serbia)
  61. SEIDI (Spain)
  62. CPAN (Spain)
  63. Swiss Funding Agencies (Switzerland)
  64. MST (Taipei)
  65. ThEPCenter (Thailand)
  66. IPST (Thailand)
  67. STAR (Thailand)
  68. NSTDA (Thailand)
  69. TUBITAK (Turkey)
  70. TAEK (Turkey)
  71. NASU (Ukraine)
  72. SFFR (Ukraine)
  73. STFC (United Kingdom)
  74. DOE (USA)
  75. NSF (USA)
  76. Marie-Curie program
  77. European Research Council (European Union)
  78. EPLANET (European Union)
  79. Leventis Foundation
  80. A.P. Sloan Foundation
  81. Alexander von Humboldt Foundation
  82. Belgian Federal Science Policy Office
  83. Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  84. Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
  85. Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
  86. Council of Science and Industrial Research, India
  87. HOMING PLUS of the Foundation for Polish Science
  88. European Union
  89. Regional Development Fund
  90. Ministry of Science and Higher Education
  91. National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406]
  92. Thalis program
  93. Aristeia program
  94. EU-ESF
  95. Greek NSRF
  96. National Priorities Research Program by Qatar National Research Fund
  97. Programa Clarin-COFUND del Principado de Asturias
  98. Chulalongkorn University
  99. Welch Foundation [C-1845]
  100. Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)
  101. Direct For Mathematical & Physical Scien
  102. Division Of Physics [1506130, 1211067, 1506168, 1624356] Funding Source: National Science Foundation
  103. Direct For Mathematical & Physical Scien
  104. Division Of Physics [1151640, 1606321] Funding Source: National Science Foundation
  105. Science and Technology Facilities Council [CMS, GRIDPP] Funding Source: researchfish

Ask authors/readers for more resources

The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of root sNN= 5.02 TeV, as well as results from charm quark jets in proton-proton (pp) collisions at root s=2.76and 5.02TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400GeV/cin pPb collisions at root sNN=5.02 TeV of R-pA= 0.92 +/- 0.07 (stat) +/- 0.11(syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at root s=2.76 and 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c. (C) 2017 The Author(s). Published by Elsevier B.V.

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