4.8 Article

Tevatron Combination of Single-Top-Quark Cross Sections and Determination of the Magnitude of the Cabibbo-Kobayashi-Maskawa Matrix Element Vtb

Journal

PHYSICAL REVIEW LETTERS
Volume 115, Issue 15, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.152003

Keywords

-

Funding

  1. Department of Energy
  2. National Science Foundation
  3. Australian Research Council (Australia)
  4. National Council for the Development of Science and Technology
  5. Carlos Chagas Filho Foundation for the Support of Research in the State of Rio de Janeiro (Brazil)
  6. Natural Sciences and Engineering Research Council (Canada)
  7. China Academy of Sciences
  8. National Natural Science Foundation of China
  9. National Science Council of the Republic of China (China)
  10. Administrative Department of Science, Technology and Innovation (Colombia)
  11. Ministry of Education, Youth and Sports (Czech Republic)
  12. Academy of Finland
  13. Alternative Energies and Atomic Energy Commission
  14. National Center for Scientific Research/National Institute of Nuclear and Particle Physics (France)
  15. Bundesministerium fur Bildung und Forschung (Federal Ministry of Education and Research)
  16. Deutsche Forschungsgemeinschaft (German Research Foundation) (Germany)
  17. Department of Atomic Energy and Department of Science and Technology (India)
  18. Science Foundation Ireland (Ireland)
  19. National Institute for Nuclear Physics (Italy)
  20. Ministry of Education, Culture, Sports, Science and Technology (Japan)
  21. Korean World Class University Program
  22. National Research Foundation of Korea (Korea)
  23. National Council of Science and Technology (Mexico)
  24. Foundation for Fundamental Research on Matter (Netherlands)
  25. Ministry of Education and Science of the Russian Federation
  26. National Research Center Kurchatov Institute of the Russian Federation
  27. Russian Foundation for Basic Research (Russia)
  28. Slovak R&D Agency (Slovakia)
  29. Ministry of Science and Innovation
  30. Consolider-Ingenio Program (Spain)
  31. Swedish Research Council (Sweden)
  32. Swiss National Science Foundation (Switzerland)
  33. Ministry of Education and Science of Ukraine (Ukraine)
  34. Science and Technology Facilities Council
  35. Royal Society (United Kingdom)
  36. A.P. Sloan Foundation (U.S.A.)
  37. European Union community Marie Curie Fellowship [302103]
  38. Science and Technology Facilities Council [ST/K00137X/1, ST/K001418/1, ST/K001604/1, ST/K00140X/1, ST/K50208X/1, ST/K001388/1, ST/M503575/1, ST/J501074/1, ST/M000664/1, ST/M001474/1, ST/M000761/1, ST/L00352X/1] Funding Source: researchfish
  39. STFC [ST/K50208X/1, ST/J501074/1, ST/K00140X/1, ST/M503575/1, ST/L00352X/1, ST/M000761/1, ST/M000664/1, ST/K001388/1, ST/K00137X/1, ST/K001604/1] Funding Source: UKRI
  40. ICREA Funding Source: Custom
  41. Direct For Mathematical & Physical Scien
  42. Division Of Physics [1506017, 1306951, 1401984, 1206092, 1508869] Funding Source: National Science Foundation
  43. Direct For Mathematical & Physical Scien
  44. Division Of Physics [1461306] Funding Source: National Science Foundation

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We present the final combination of CDF and D0 measurements of cross sections for single-top-quark production in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7 fb(-1) per experiment. The t-channel cross section is measured to be sigma(t) = 2.25(-0.31)(+0.29) pb. We also present the combinations of the two-dimensional measurements of the s- vs t-channel cross section. In addition, we give the combination of the s + t channel cross section measurement resulting in sigma(s+t) = 3.30(-0.40)(+0.52) pb, without assuming the standard model value for the ratio sigma(s)/sigma(t). The resulting value of the magnitude of the top-to-bottom quark coupling is vertical bar V-tb vertical bar = 1.02(-0.05)(+0.06), corresponding to vertical bar V-tb vertical bar > 0.92 at the 95% C. L.

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