Search for CP violation using T-odd correlations in D0→ K+K-π+π-decays

The LHCb Collaboration

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A search for CP violation using T-odd correlations is performed using the four-body D0→ K+K-π+π−decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb-1and 2.0 fb-1recorded at the centre-of-mass energies of 7TeV and 8TeV, respectively. The CP-violating asymmetry (Formula presented.) is measured to be (0.18 ± 0.29 (stat) ± 0.04 (syst))%. Searches for CP violation in different regions of phase space of the four-body decay, and as a function of the D0decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.
Original languageEnglish
Article number005
Number of pages21
JournalJournal of High Energy Physics
Issue number10
Publication statusPublished - 2014
Externally publishedYes


  • CP violation
  • Charm physics
  • Hadron-Hadron Scattering
  • Flavor physics

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