4.7 Article

Measurement of differential top-quark-pair production cross sections in pp collisions at √s=7 TeV

Journal

EUROPEAN PHYSICAL JOURNAL C
Volume 73, Issue 3, Pages -

Publisher

SPRINGER
DOI: 10.1140/epjc/s10052-013-2339-4

Keywords

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Funding

  1. Austrian Federal Ministry of Science and Research
  2. Belgian Fonds de la Recherche Scientifique
  3. Fonds voor Wetenschappelijk Onderzoek
  4. CNPq
  5. CAPES
  6. FAPERJ
  7. FAPESP
  8. Bulgarian Ministry of Education, Youth and Science
  9. CERN
  10. Chinese Academy of Sciences
  11. Ministry of Science and Technology
  12. National Natural Science Foundation of China
  13. Colombian Funding Agency (COLCIENCIAS)
  14. Croatian Ministry of Science, Education and Sport
  15. Research Promotion Foundation, Cyprus
  16. Ministry of Education and Research [SF0690030s09]
  17. European Regional Development Fund, Estonia
  18. Academy of Finland
  19. Finnish Ministry of Education and Culture
  20. Helsinki Institute of Physics
  21. Institut National de Physique Nucleaire et de Physique des Particules/CNRS
  22. Commissariat a l'Energie Atomique et aux Energies Alternatives/CEA, France
  23. Bundesministerium fur Bildung und Forschung
  24. Deutsche Forschungsgemeinschaft
  25. Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
  26. General Secretariat for Research and Technology, Greece
  27. National Scientific Research Foundation
  28. National Office for Research and Technology, Hungary
  29. Department of Atomic Energy
  30. Department of Science and Technology, India
  31. Institute for Studies in Theoretical Physics and Mathematics, Iran
  32. Science Foundation, Ireland
  33. Istituto Nazionale di Fisica Nucleare, Italy
  34. Korean Ministry of Education, Science and Technology
  35. NRF, Korea
  36. Lithuanian Academy of Sciences
  37. CINVESTAV
  38. CONACYT
  39. SEP
  40. UASLP-FAI
  41. Ministry of Science and Innovation, New Zealand
  42. Pakistan Atomic Energy Commission
  43. Ministry of Science and Higher Education
  44. National Science Centre, Poland
  45. Fundacao para a Ciencia e a Tecnologia, Portugal
  46. JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan)
  47. Ministry of Education and Science of the Russian Federation
  48. Federal Agency of Atomic Energy of the Russian Federation
  49. Russian Academy of Sciences
  50. Russian Foundation for Basic Research
  51. Ministry of Science and Technological Development of Serbia
  52. Secretaria de Estado de Investigacion
  53. Desarrollo e Innovacion and Programa Consolider-Ingenio, Spain
  54. ETH Board
  55. ETH Zurich
  56. PSI
  57. SNF
  58. UniZH
  59. Canton Zurich
  60. SER
  61. National Science Council, Taipei
  62. Thailand Center of Excellence in Physics
  63. Institute for the Promotion of Teaching Science and Technology
  64. National Electronics and Computer Technology Center
  65. Scientific and Technical Research Council of Turkey
  66. Turkish Atomic Energy Authority
  67. Science and Technology Facilities Council, UK
  68. US Department of Energy
  69. US National Science Foundation
  70. Marie-Curie programme
  71. European Research Council (European Union)
  72. Leventis Foundation
  73. A.P. Sloan Foundation
  74. Alexander von Humboldt Foundation
  75. Belgian Federal Science Policy Office
  76. Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  77. Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
  78. Ministry of Education, Youth and Sports (MEYS) of Czech Republic
  79. Council of Science and Industrial Research, India
  80. Compagnia di San Paolo (Torino)
  81. Foundation for Polish Science
  82. European Union, Regional Development Fund
  83. STFC [ST/K003844/1, ST/I505572/1, ST/H00081X/2, ST/K001604/1, ST/G502347/1, ST/L00609X/1, ST/F006748/1, ST/I000410/1, ST/I005912/1, ST/J005665/1, ST/F007094/1, ST/J004901/1, ST/I002200/1] Funding Source: UKRI
  84. Science and Technology Facilities Council [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/I005912/1 GRIDPP, ST/I002200/1, ST/F006748/1, CMS, ST/G502347/1, ST/K001604/1 DMUK, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/K001604/1 MICE/UKNF, ST/K003844/1 GRIDPP, GRIDPP, ST/I005912/1, ST/I003622/1 GRIDPP] Funding Source: researchfish
  85. Direct For Mathematical & Physical Scien
  86. Division Of Physics [1205960] Funding Source: National Science Foundation
  87. Division Of Physics
  88. Direct For Mathematical & Physical Scien [0969555, 1151640, 1211067] Funding Source: National Science Foundation

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Normalised differential top-quark-pair production cross sections are measured in pp collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector using data recorded in 2011 corresponding to an integrated luminosity of 5.0 fb(-1). The measurements are performed in the lepton + jets decay channels (e + jets and mu + jets) and the dilepton decay channels (e(+)e(-), mu(+)mu(-), and mu(+/-)e(-/+)). The t (t) over bar differential cross section is measured as a function of kinematic properties of the final-state charged leptons and jets associated to b quarks, as well as those of the top quarks and the t (t) over bar system. The data are compared with several predictions from perturbative QCD calculations up to approximate next-to-next-to-leading-order precision. No significant deviations from the standard model are observed.

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