4.7 Article

Search for CP violation in the decays D± → KS0K±, Ds± → KS0K±, and Ds± → KS0π±

Journal

PHYSICAL REVIEW D
Volume 87, Issue 5, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.87.052012

Keywords

-

Funding

  1. U.S. Department of Energy
  2. U.S. National Science Foundation
  3. Natural Sciences and Engineering Research Council (Canada)
  4. Commissariat a l'Energie Atomique (France)
  5. Institut National de Physique Nucleaire et de Physique des Particules (France)
  6. Bundesministerium fur Bildung und Forschung (Germany)
  7. Deutsche Forschungsgemeinschaft (Germany)
  8. Istituto Nazionale di Fisica Nucleare (Italy)
  9. Foundation for Fundamental Research on Matter (Netherlands)
  10. Research Council of Norway
  11. Ministry of Education and Science of the Russian Federation
  12. Ministerio de Ciencia e Innovacion (Spain)
  13. Science and Technology Facilities Council (United Kingdom)
  14. Marie-Curie IEF program (European Union)
  15. A.P. Sloan Foundation (USA)
  16. SLAC
  17. Science and Technology Facilities Council [ST/K001604/1 CMS Upgrade, ST/K001604/1 SuperNEMO, ST/K001604/1 LHCb, ST/K001604/1 T2K, ST/K001604/1, ST/K001604/1 MICE/UKNF, ST/K001604/1 DMUK, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP] Funding Source: researchfish
  18. STFC [ST/K001604/1, ST/H001085/1, PP/E000460/1, ST/H001085/2, ST/J005568/1, ST/K000748/1] Funding Source: UKRI
  19. Direct For Mathematical & Physical Scien
  20. Division Of Physics [0969487] Funding Source: National Science Foundation

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We report a search for CP violation in the decay modes D-+/- -> (KSK +/-)-K-0, D-s(+/-) -> (KSK +/-)-K-0, and D-s(+/-) -> K-S(0)pi(+/-) using a data set corresponding to an integrated luminosity of 469 fb(-1) collected with the BABAR detector at the PEP-II asymmetric energy e(+)e(-) storage rings. The decay rate CP asymmetries, ACP, are determined to be (+0.13 +/- 0.36(stat) +/- 0.25(syst))%, (-0.05 +/- 0.23(stat) +/- 0.24(syst))%, and (+0.6 +/- 2.0(stat) +/- 0.3(syst))%, respectively. These measurements are consistent with zero, and also with the Standard Model prediction [(-0.332 +/- 0.006)% for the D-+/- -> (KSK +/-)-K-0 and D-s(+/-) -> (KSK +/-)-K-0 modes, and (+0.332 +/- 0.006)% for the D-s(+/-) -> K-S(0)pi(+/-) mode]. They are the most precise determinations to date.

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