4.7 Article

Updated determination of D-0-(D)over-bar(0) mixing and CP violation parameters with D-0 -> K+ pi(-) decays

Journal

PHYSICAL REVIEW D
Volume 97, Issue 3, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.97.031101

Keywords

-

Funding

  1. CERN
  2. CAPES (Brazil)
  3. CNPq (Brazil)
  4. FAPERJ (Brazil)
  5. FINEP (Brazil)
  6. MOST (China)
  7. NSFC (China)
  8. CNRS/IN2P3 (France)
  9. BMBF (Germany)
  10. DFG (Germany)
  11. MPG (Germany)
  12. INFN (Italy)
  13. NWO (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 (USA)
  25. Alexander von Humboldt AvH Foundation (Germany)
  26. EPLANET (European Union)
  27. Marie Sklodowska-Curie Actions (European Union)
  28. ERC (European Union)
  29. ANR (France)
  30. Labex P2IO (France)
  31. ENIGMASS (France)
  32. OCEVU (France)
  33. Region Auvergne-Rhone-Alpes (France)
  34. RFBR (Russia)
  35. Yandex LLC (Russia)
  36. GVA (Spain)
  37. XuntaGal (Spain)
  38. GENCAT (Spain)
  39. Herchel Smith Fund (United Kingdom)
  40. Royal Society (United Kingdom)
  41. English-Speaking Union (United Kingdom)
  42. Leverhulme Trust (United Kingdom)
  43. Science and Technology Facilities Council [ST/N000250/1, 1565116, ST/N000455/1, LHCb Upgrades, 1416165, ST/K003410/1, ST/H006737/1, ST/J004332/1, ST/L003163/1, GRIDPP, 1397914, ST/N000463/1, LHCb, ST/N000242/1] Funding Source: researchfish
  44. STFC [1796908, ST/J004332/1, ST/N000455/1, ST/L003163/1, LHCb Upgrades, ST/N000242/1, ST/N000463/1, ST/H006737/1, ST/K003410/1, LHCb] Funding Source: UKRI

Ask authors/readers for more resources

We report measurements of charm-mixing parameters based on the decay-time-dependent ratio of D-0 -> K+pi(-) to D-0 -> K-pi(+) rates. The analysis uses a data sample of proton-proton collisions corresponding to an integrated luminosity of 5.0 fb(-1) recorded by the LHCb experiment from 2011 through 2016. Assuming charge-parity (CP) symmetry, the mixing parameters are determined to be x'(2) = (3.9 +/- 2.7) x 10(-5), y' = (5.28 +/- 0.52) x 10(-3), and R-D = (3.454 +/- 0.031) x 10(-3). Without this assumption, the measurement is performed separately for D-0 and (D) over bar (0) mesons, yielding a direct CP-violating asymmetry A(D) = (-0.1 +/- 9.1) x 10(-3), and magnitude of the ratio of mixing parameters 1.00 < vertical bar q/p vertical bar < 1.35 at the 68.3% confidence level. All results include statistical and systematic uncertainties and improve significantly upon previous single-measurement determinations. No evidence for CP violation in charm mixing is observed.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available