A study of CP violation in $B^{\pm }\to D{K}^{\pm }$ and $B^{\pm }\to D{\pi }^{\pm }$ decays with $D\to K_{\mathrm{S}}^0{K}^{\pm }{\pi }^{\mp }$ final states

Abstract

A first study of CP violation in the decay modes $B^{\pm }\to [K_{\mathrm{S}}^0{K}^{\pm }{\pi }^{\mp }{]}_D{h}^{\pm }$ and $B^{\pm }\to [K_{\mathrm{S}}^0{K}^{\mp }{\pi }^{\pm }{]}_D{h}^{\pm }$, where $h$ labels a $K$ or $\pi$ meson and $D$ labels a $D^0$ or ${\overline{D}}^0$ 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 $\gamma$ 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 $\gamma$ using other decay modes.

21 pages, 4 figures; this revision with an additional reference

References in corpus (4)

• PYTHIA 6.4 Physics and Manual
• Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with B+- --> D(*)K(*)+- decays
• A model-independent Dalitz plot analysis of $B^{\pm }\to D{K}^{\pm }$ with $D\to K_{\mathrm{S}}^0{h}^{+}{h}^{-}$ ($h=\pi ,K$) decays and constraints on the CKM angle $\gamma$
• Measurements of the branching fractions and CP asymmetries of B+ to J/psi pi+ and B+ to psi(2S) pi+ decays

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