A study of CP violation in B ± → DK ± and B ± → Dπ ± decays with D→KS0K±π∓ final states

A first study of CP violation in the decay modes B±→[KS0K±π∓]Dh± and B±→[KS0K∓π±]Dh± , where h labels a K or π meson and D labels a D0 or D‾0 meson, is performed. The analysis uses the LHCb data set collected in pp collisions, corresponding to an integrated luminosity of 3 fb −1 . The analysis is sensitive to the CP -violating CKM phase γ through seven observables: one charge asymmetry in each of the four modes and three ratios of the charge-integrated yields. The results are consistent with measurements of γ using other decay modes.