4.7 Article

Measurement of the triple-differential dijet cross section in proton-proton collisions at √s=8 TeV and constraints on parton distribution functions

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EUROPEAN PHYSICAL JOURNAL C
卷 77, 期 11, 页码 -

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SPRINGER
DOI: 10.1140/epjc/s10052-017-5286-7

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资金

  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. MoST (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)
  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. PCTI (Spain)
  64. FEDER (Spain)
  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
  79. European Research Council (European Union)
  80. EPLANET (European Union)
  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. Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
  88. Council of Science and Industrial Research, India
  89. HOMING PLUS programme of the Foundation for Polish Science
  90. European Union
  91. Regional Development Fund
  92. 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]
  93. National Priorities Research Program by Qatar National Research Fund
  94. Programa Clarin-COFUND del Principado de Asturias
  95. Thalis programme
  96. Aristeia programme
  97. EU-ESF
  98. Greek NSRF
  99. Chulalongkorn University
  100. Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)
  101. Welch Foundation [C-1845]
  102. Mobility Plus programme of the Ministry of Science and Higher Education
  103. Direct For Mathematical & Physical Scien
  104. Division Of Physics [1506168, 1606321, 1151640] Funding Source: National Science Foundation
  105. Division Of Physics
  106. Direct For Mathematical & Physical Scien [1506130] Funding Source: National Science Foundation
  107. Science and Technology Facilities Council [CMS, ST/H000925/1, GRIDPP, PP/E000479/1] Funding Source: researchfish

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A measurement is presented of the triple-differential dijet cross section at a centre-of-mass energy of 8 TeV using 19.7 fb(-1) of data collected with the CMS detector in proton-proton collisions at the LHC. The cross section is measured as a function of the average transverse momentum, half the rapidity separation, and the boost of the two leading jets in the event. The cross section is corrected for detector effects and compared to calculations in perturbative quantum chromodynamics at next-to-leading order accuracy, complemented with electroweak and nonperturbative corrections. New constraints on parton distribution functions are obtained and the inferred value of the strong coupling constant is alpha(S)(M-Z) = 0.1199 +/- 0.0015 (exp)(-0.0020)(+0.0031) (theo), where M-Z is the mass of the Z boson.

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