4.4 Article

Measurement of the CKM angle γ from a combination of LHCb results

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 12, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP12(2016)087

Keywords

B physics; CKM angle gamma; CP violation; Hadron-Hadron scattering (experiments)

Funding

  1. CERN
  2. CAPES (Brazil)
  3. CNPq (Brazil)
  4. FAPERJ (Brazil)
  5. FINEP (Brazil)
  6. NSFC (China)
  7. CNRS/IN2P3 (France)
  8. BMBF (Germany)
  9. DFG (Germany)
  10. MPG (Germany)
  11. INFN (Italy)
  12. FOM (The Netherlands)
  13. NWO (The Netherlands)
  14. MNiSW (Poland)
  15. NCN (Poland)
  16. MEN/IFA (Romania)
  17. MinES (Russia)
  18. FASO (Russia)
  19. MinECo (Spain)
  20. SNSF (Switzerland)
  21. SER (Switzerland)
  22. NASU (Ukraine)
  23. STFC (United Kingdom)
  24. NSF (U.S.A.)
  25. AvH Foundation (Germany)
  26. EPLANET (European Union)
  27. Marie Sklodowska-Curie Actions (European Union)
  28. ERC (European Union)
  29. Conseil General de Haute-Savoie (France)
  30. Labex ENIGMASS and OCEVU (France)
  31. Region Auvergne (France)
  32. RFBR (Russia)
  33. Yandex LLC (Russia)
  34. GVA (Spain)
  35. XuntaGal (Spain)
  36. GENCAT (Spain)
  37. Herchel Smith Fund (United Kingdom)
  38. Royal Society (United Kingdom)
  39. Royal Commission (United Kingdom)
  40. Leverhulme Trust (United Kingdom)
  41. STFC [ST/M004058/1, 1641747, LHCb Upgrades, LHCb, ST/J004332/1, 1708182, ST/K00140X/1, ST/L003538/1, ST/N001370/1, ST/H006737/1, ST/K004646/1, ST/K003410/1, 1707993] Funding Source: UKRI
  42. Science and Technology Facilities Council [LHCb, ST/K004646/1, 1564711, 1641747, ST/K00140X/1, ST/M004058/1, 1416165, ST/N000250/1, ST/L003538/1, LHCb Upgrades, 1415632, 1565032, ST/K003410/1, ST/J004332/1, 1708182, 1707993, GRIDPP, ST/N001370/1, ST/H006737/1, 1565116] Funding Source: researchfish

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A combination of measurements sensitive to the CKM angle gamma from LHCb is performed. The inputs are from analyses of time-integrated B+ -> DK+, B-0 -> DK*(0), B-0 -> DK+ pi(-) and B+ -> DK+ pi(+) pi(-) tree-level decays. In addition, results from a time-dependent analysis of B-s(0) -> (DsK +/-)-K--/+ decays are included. The combination yields = (72: 2(-7.3)(+6:8) 7 : 3)degrees, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be gamma is an element of [55.9, 85.2]degrees. A second combination is investigated, also including measurements from B+ -> DK+, B-0 -> DK*(0), B-0 -> DK+ pi(-) and B+ -> DK+ pi(+) pi decays, which yields compatible results.

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