Observation of CP violation in B±→DK± decays

The LHCb Collaboration

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An analysis of B±→DK± and B±→Dπ± decays is presented where the D meson is reconstructed in the two-body final states: K±π, K+K- and π+π-. Using 1.0 fb-1 of s=7TeV pp collisions, measurements of several observables are made including the first observation of the suppressed mode B±→[π±K∓]DK± CP violation in B±→DK± decays is observed with 5.8σ significance.

Original languageEnglish
Pages (from-to)203-212
Number of pages10
JournalPhysics Letters B
Issue number3
Publication statusPublished - 6 Jun 2012
Externally publishedYes


  • CP violation
  • Hadronic B decays
  • LHC

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