4.7 Article

Observation of a diffractive contribution to dijet production in proton-proton collisions at √s = 7 TeV

Journal

PHYSICAL REVIEW D
Volume 87, Issue 1, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.87.012006

Keywords

-

Funding

  1. BMWF (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. RPF (Cyprus)
  17. MoER (Estonia) [SF0690030s09]
  18. ERDF (Estonia)
  19. Academy of Finland (Finland)
  20. MEC (Finland)
  21. HIP (Finland)
  22. CEA (France)
  23. CNRS/IN2P3 (France)
  24. BMBF (Germany)
  25. DFG (Germany)
  26. HGF (Germany)
  27. GSRT (Greece)
  28. OTKA (Hungary)
  29. NKTH (Hungary)
  30. DAE (India)
  31. DST (India)
  32. IPM (Iran)
  33. SFI (Ireland)
  34. INFN (Italy)
  35. NRF (Korea)
  36. WCU (Korea)
  37. LAS (Lithuania)
  38. CINVESTAV (Mexico)
  39. CONACYT (Mexico)
  40. SEP (Mexico)
  41. UASLP-FAI (Mexico)
  42. MSI (New Zealand)
  43. PAEC (Pakistan)
  44. MSHE (Poland)
  45. NSC (Poland)
  46. FCT (Portugal)
  47. JINR (Armenia)
  48. JINR (Belarus)
  49. JINR (Georgia)
  50. JINR (Ukraine)
  51. JINR (Uzbekistan)
  52. MON (Russia)
  53. RosAtom (Russia)
  54. RAS (Russia)
  55. RFBR (Russia)
  56. MSTD (Serbia)
  57. SEIDI (Spain)
  58. CPAN (Spain)
  59. Swiss Funding Agencies (Switzerland)
  60. NSC (Taipei)
  61. ThEP (Thailand)
  62. IPST (Thailand)
  63. NECTEC (Thailand)
  64. TUBITAK (Turkey)
  65. TAEK (Turkey)
  66. NASU (Ukraine)
  67. STFC (United Kingdom)
  68. DOE (USA)
  69. NSF (USA)
  70. Marie-Curie programme
  71. European Research Council (European Union)
  72. Leventis Foundation
  73. A. P. Sloan Foundation
  74. Alexander von Humboldt Foundation
  75. Austrian Science Fund (FWF)
  76. Belgian Federal Science Policy Office
  77. Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  78. Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
  79. Ministry of Education, Youth and Sports (MEYS) of Czech Republic
  80. Council of Science and Industrial Research, India
  81. Compagnia di San Paolo (Torino)
  82. HOMING PLUS programme of the Foundation for Polish Science
  83. European Union, Regional Development Fund
  84. Science and Technology Facilities Council [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, PP/D004284/1, ST/K001639/1, ST/I002200/1, ST/I505580/1, ST/I005912/1 GRIDPP, ST/K003844/1 GRIDPP, GRIDPP, ST/I005912/1, ST/L00609X/1 GRIDPP, ST/K001604/1 CMS Upgrade, ST/K001604/1 SuperNEMO, 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] Funding Source: researchfish
  85. Direct For Mathematical & Physical Scien
  86. Division Of Physics [1205960, 1211067] Funding Source: National Science Foundation
  87. Division Of Physics
  88. Direct For Mathematical & Physical Scien [0969555] Funding Source: National Science Foundation
  89. STFC [ST/I000410/1, ST/H000925/1, ST/J004901/1, ST/I002200/1, ST/I505572/1, ST/F007434/1, ST/I005912/1, ST/I505580/1, ST/J005665/1, ST/F007094/1, ST/K003844/1, ST/G502347/1, ST/L00609X/1, ST/K001639/1, ST/H00081X/2, ST/K001604/1, ST/F006748/1] Funding Source: UKRI

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The cross section for dijet production in proton-proton collisions at root s = 7 TeV is presented as a function of (xi) over tilde, a variable that approximates the fractional momentum loss of the scattered proton in single-diffractive events. The analysis is based on an integrated luminosity of 2.7 nb(-1) collected with the CMS detector at the LHC at low instantaneous luminosities, and uses events with jet transverse momentum of at least 20 GeV. The dijet cross section results are compared to the predictions of diffractive and non-diffractive models. The low-(xi) over tilde data show a significant contribution from diffractive dijet production, observed for the first time at the LHC. The associated rapidity gap survival probability is estimated. DOI: 10.1103/PhysRevD.87.012006

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