4.7 Article

Measurement of the Υ(1S), Υ(2S), and Υ(3S) cross sections in pp collisions at √s=7 TeV

期刊

PHYSICS LETTERS B
卷 727, 期 1-3, 页码 101-125

出版社

ELSEVIER
DOI: 10.1016/j.physletb.2013.10.033

关键词

CMS; Physics; Quarkonia; Upsilon; Dimuons

资金

  1. BMWF
  2. FWF (Austria)
  3. FNRS
  4. FWO (Belgium)
  5. CNPq
  6. CAPES
  7. FAPERJ
  8. FAPESP (Brazil)
  9. MEYS (Bulgaria)
  10. CERN
  11. CAS
  12. MoST
  13. NSFC (China)
  14. COLCIENCIAS (Colombia)
  15. MSES (Croatia)
  16. RPF (Cyprus)
  17. MoER [SF0690030s09]
  18. ERDF (Estonia)
  19. Academy of Finland
  20. MEC
  21. HIP (Finland)
  22. CEA
  23. CNRS/IN2P3 (France)
  24. BMBF
  25. DFG
  26. HGF (Germany)
  27. GSRT (Greece)
  28. OTKA
  29. NKTH (Hungary)
  30. DAE
  31. DST (India)
  32. IPM (Iran)
  33. SFI (Ireland)
  34. INFN (Italy)
  35. NRF
  36. WCU (Republic of Korea)
  37. LAS (Lithuania)
  38. CINVESTAV
  39. CONACYT
  40. SEP
  41. UASLP-FAI (Mexico)
  42. MSI (New Zealand)
  43. PAEC (Pakistan)
  44. MSHE
  45. NSC (Poland)
  46. FCT (Portugal)
  47. JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan)
  48. MON
  49. RosAtom
  50. RAS
  51. RFBR (Russia)
  52. MSTD (Serbia)
  53. SEIDI
  54. CPAN (Spain)
  55. Swiss Funding Agencies (Switzerland)
  56. NSC (Taipei)
  57. ThEPCenter
  58. IPST
  59. NSTDA (Thailand)
  60. TUBITAK
  61. TAEK (Turkey)
  62. NASU (Ukraine)
  63. STFC (United Kingdom)
  64. DOE
  65. NSF (USA)
  66. Marie-Curie programme
  67. European Research Council
  68. EPLANET (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. Ministry of Education, Youth and Sports (MEYS) of Czech Republic
  76. Council of Science and Industrial Research, India
  77. Compagnia di San Paolo (Torino)
  78. HOMING PLUS programme of Foundation for Polish Science
  79. European Union, Regional Development Fund
  80. STFC [ST/G502347/1, ST/L00609X/1, ST/K001639/1, ST/F006748/1, ST/H000925/1, ST/I000410/1, ST/I005912/1, ST/I505580/1, ST/J005665/1, ST/F007094/1, ST/J004901/1, ST/I002200/1, ST/I505572/1, ST/F007434/1, ST/K003844/1, ST/K001604/1, ST/H00081X/2] Funding Source: UKRI
  81. Science and Technology Facilities Council [ST/J005665/1, ST/K001604/1 LHCb, ST/L00609X/1, ST/I000410/1, ST/I505572/1, ST/J004901/1, ST/K003844/1, ST/K001604/1 T2K, ST/K001604/1, ST/F007094/1, ST/I003622/1 GRIDPP, ST/I005912/1, GRIDPP, ST/K003844/1 GRIDPP, ST/H000925/1, ST/K001604/1 MICE/UKNF, ST/K001604/1 GRIDPP, ST/K001604/1 LHCb Upgrades, ST/K001604/1 DMUK, ST/F007434/1, ST/G502347/1, CMS, ST/F006748/1, ST/K001639/1, ST/I002200/1, ST/I505580/1, ST/I005912/1 GRIDPP, ST/K001604/1 SuperNEMO, ST/K003542/1 GRID PP, ST/K001256/1, ST/K001604/1 CMS Upgrade, ST/L00609X/1 GRIDPP] Funding Source: researchfish
  82. Direct For Mathematical & Physical Scien
  83. Division Of Physics [0969555, 1151640] Funding Source: National Science Foundation
  84. Division Of Physics
  85. Direct For Mathematical & Physical Scien [1205960, 1211067, 1314131] Funding Source: National Science Foundation

向作者/读者索取更多资源

The Upsilon(1S), Upsilon(2S), and Upsilon(3S) production cross sections are measured using a data sample corresponding to an integrated luminosity of 35.8 +/- 1.4 pb(-1) of proton-proton collisions at root s = 7 TeV, collected with the CMS detector at the LHC. The Upsilon resonances are identified through their decays to dimuons. Integrated over the Upsilon transverse momentum range p(T)(Upsilon) < 50 GeV/c and rapidity range vertical bar y(Upsilon)vertical bar < 2.4, and assuming unpolarized Upsilon production, the products of the Upsilon production cross sections and dimuon branching fractions are sigma (pp -> Upsilon(1S)X) . B(Upsilon(1S) -> mu(+)mu(-)) = (8.55 +/- 0.05(-0.50)(+0.56) +/- 0.34) nb, sigma (pp -> Upsilon(2S)X) . B(Upsilon(2S) -> mu(+)mu(-)) = (2.21 +/- 0.03(-0.14)(+0.16) +/- 0.09) nb, sigma (pp -> Upsilon(3S)X) . B(Upsilon(3S) -> mu(+)mu(-)) = (1.11 +/- 0.02(-0.08)(+0.10) +/- 0.04) nb, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty in the integrated luminosity. The differential cross sections in bins of transverse momentum and rapidity, and the cross section ratios are presented. Cross section measurements performed within a restricted muon kinematic range and not corrected for acceptance are also provided. These latter measurements are independent of Upsilon polarization assumptions. The results are compared to theoretical predictions and previous measurements. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.

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