Search for CP violation in D (+/-) -> (KSK +/-)-K-0 and D-s(+/-) -> K-S(0)pi(+/-) decays

LHCb collaboration

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Abstract

A search for CP violation in Cabibbo-suppressed D (+/-) ->(S) (0) K (+/-) and D (s) (+/-) ->(S) (0) pi (+/-) decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb, recorded by the LHCb experiment. The individual CP-violating asymmetries are measured to be assuming that CP violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmetries for the four decay modes D ((s)) (+/-) -> K (S) (0) K (+/-) and D ((s)) (+/-) -> K (S) (0) pi (+/-) gives the sumIn all cases, the first uncertainties are statistical and the second systematic. The results represent the most precise measurements of these asymmetries to date and show no evidence for CP violation.
Original languageEnglish
Article number025
Number of pages19
JournalJournal of High Energy Physics
Issue number10
DOIs
Publication statusPublished - 3 Oct 2014
Externally publishedYes

Keywords

  • CP violation
  • Hadron-Hadron Scattering

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