4.7 Article

Production of Λc+ baryons in proton-proton and lead-lead collisions at √SNN=5.02 TeV

Journal

PHYSICS LETTERS B
Volume 803, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.physletb.2020.135328

Keywords

CMS; Physics; Lambda(c) baryons; Nuclear modification factor; Heavy flavor

Funding

  1. BMBWF (Austria)
  2. FWF (Austria)
  3. FNRS (Belgium)
  4. FWO (Belgium)
  5. CNPq (Brazil)
  6. CAPES (Brazil)
  7. FAPERJ (Brazil)
  8. FAPERGS (Brazil)
  9. FAPESP (Brazil)
  10. MES (Bulgaria)
  11. CERN
  12. CAS (China)
  13. MOST (China)
  14. NSFC (China)
  15. COLCIENCIAS (Colombia)
  16. MSES (Croatia)
  17. CSF (Croatia)
  18. RPF (Cyprus)
  19. SENESCYT (Ecuador)
  20. MoER (Estonia)
  21. ERC IUT (Estonia)
  22. PUT (Estonia)
  23. ERDF (Estonia)
  24. Academy of Finland (Finland)
  25. MEC (Finland)
  26. HIP (Finland)
  27. CEA (France)
  28. CNRS/IN2P3 (France)
  29. BMBF (Germany)
  30. DFG (Germany)
  31. HGF (Germany)
  32. GSRT (Greece)
  33. NKFIA (Hungary)
  34. DAE (India)
  35. DST (India)
  36. IPM (Iran)
  37. SFI (Ireland)
  38. INFN (Italy)
  39. MSIP (Republic of Korea)
  40. NRF (Republic of Korea)
  41. MES (Latvia)
  42. LAS (Lithuania)
  43. MOE (Malaysia)
  44. UM (Malaysia)
  45. BUAP (Mexico)
  46. CINVESTAV (Mexico)
  47. CONACYT (Mexico)
  48. LNS (Mexico)
  49. SEP (Mexico)
  50. UASLP-FAI (Mexico)
  51. MOS (Montenegro)
  52. MBIE (New Zealand)
  53. JINR (Dubna)
  54. MON (Russia)
  55. ROSATOM (Russia)
  56. RAS (Russia)
  57. RFBR (Russia)
  58. NRC KI (Russia)
  59. MESTD (Serbia)
  60. SEIDI (Spain)
  61. CPAN (Spain)
  62. PCTI (Spain)
  63. FEDER (Spain)
  64. MoSTR(Sri Lanka)
  65. Swiss Funding Agencies (Switzerland)
  66. MST (Taipei)
  67. ThEPCenter (Thailand)
  68. IPST (Thailand)
  69. STAR (Thailand)
  70. NSTDA (Thailand)
  71. TUBITAK (Turkey)
  72. TAEK (Turkey)
  73. NASU (Ukraine)
  74. SFFR (Ukraine)
  75. STFC (United Kingdom)
  76. DOE (USA)
  77. NSF (USA)
  78. Marie-Curie programme (European Union)
  79. European Research Council (European Union) [675440, 752730, 765710]
  80. Horizon 2020 Grant (European Union) [675440, 752730, 765710]
  81. Leventis Foundation
  82. A.P. Sloan Foundation
  83. Alexander von Humboldt Foundation
  84. Belgian Federal Science Policy Office
  85. Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  86. Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
  87. F.R.S.-FNRS (Belgium) under the Excellence of Science - EOS -be.h project [30820817]
  88. FWO (Belgium) under the Excellence of Science - EOS -be.h project [30820817]
  89. Beijing Municipal Science AMP
  90. Technology Commission [Z181100004218003]
  91. Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
  92. Lendulet (Momentum) Programme of the Hungarian Academy of Sciences
  93. Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences
  94. New National Excellence Program UNKP
  95. NKFIA (Hungary) [123842, 123959, 124845, 124850, 125105, 128713, 128786, 129058]
  96. Council of Science and Industrial Research, India
  97. HOMING PLUS programme of the Foundation for Polish Science
  98. European Union, Regional Development Fund
  99. Mobility Plus programme of the Ministry of Science and Higher Education
  100. 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]
  101. National Priorities Research Program by Qatar National Research Fund
  102. Ministry of Science and Education (Russia) [3.2989.2017]
  103. Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia Maria de Maeztu [MDM-2015-0509]
  104. Programa Severo Ochoa del Principado de Asturias
  105. Thalis programme - EU-ESF
  106. Aristeia programme - EU-ESF
  107. Greek NSRF
  108. Rachadapisek Sompot Fund for Postdoctoral Fellowship (Thailand)
  109. Chulalongkorn University (Thailand)
  110. Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)
  111. Welch Foundation [C-1845]
  112. Weston Havens Foundation (USA)
  113. PAEC (Pakistan)
  114. MSHE (Poland)
  115. NSC (Poland)
  116. FCT (Portugal)
  117. STFC [ST/S00078X/1] Funding Source: UKRI

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The transverse momentum (P-T) spectra of inclusively produced A c P baryons are measured via the exclusive decay channel Lambda(+)(c) -> pK(-)pi(+) using the CMS detector at the LHC. Spectra are measured as a function of transverse momentum in proton-proton (pp) and lead-lead (PbPb) collisions at a nucleonnucleon center-of-mass energy of 5.02TeV. The measurement is performed within the Lambda(+)(c) rapidity interval vertical bar Y vertical bar < 1 in the p(T) range of 5-20GeV/c in pp and 10-20GeV/c in PbPb collisions. The observed yields of Lambda(+)(c) for p(T) of 10-20 GeV/c suggest a suppression in central PbPb collisions compared to pp collisions scaled by the number of nucleon-nucleon (NN) interactions. The Lambda(+)(c)/D-0 production ratio in pp collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from pp collisions in their common p-r range. (C) 2020 The Author(s). Published by Elsevier B.V.

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