A study of CP violation in B-+/- -> DK +/- and B-+/- -> D pi(+/-) decays with D -> (KSK +/-)-K-0 pi(-/+) final states

作者:Aaij R*; Adeva B; Adinolfi M; Affolder A; Ajaltouni Z; Albrecht J; Alessio F; Alexander M; Ali S; Alkhazov G; Alvarez Cartelle P; Alves A A Jr; Amato S; Amerio S; Amhis Y; Anderlini L; Anderson J; Andreassen R; Andreotti M; Andrews J E; Appleby R B; Gutierrez O Aquines; Archilli F; Artamonov A; Artuso M; Aslanides E; Auriemma G; Baalouch M; Bachmann S; Back J J; Badalov A; Balagura V; Baldini W; Barlow R J; Barschel C
来源:Physics Letters B, 2014, 733: 36-45.
DOI:10.1016/j.physletb.2014.03.051

摘要

A first study of CP violation in the decay modes B-+/- -> [(KSK +/-)-K-0 pi(-/+)](D)h(+/-) and B-+/- -> [(KSK +/-)-K-0 pi(-/+)](D)h(+/-), where h labels a K or pi meson and D labels a D-0 or (D) over bar (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.