Measurement of time-dependent $\mathcal{C}\mathcal{P}$ violation in charmless B decays at LHCb

Abstract

In the following we present the measurements of time-dependent $\mathcal{C}\mathcal{P}$ violation in charmless B meson decays performed by LHCb analyzing the $p-p$ collision data collected at a center-of-mass energy of 7 TeV during the 2010 and 2011 LHC runs. In particular we will focus on the analysis of charmless two-body B decays where the direct and mixing-induced CP asymmetry terms of the $B^0\to {\pi }^{+}{\pi }^{-}$ and $B_s^0\to K^{+}{K}^{-}$ decays have been measured using 0.69 fb${}^{-1}$ of data collected during 2011. The measurement of the branching ratio of the $B_s^0\to K^{\ast 0}{\bar{K}}^{\ast 0}$ decay, using 35 pb${}^{-1}$ collected during 2010, is also reported. In the end we show the relative branching ratios of all the decay modes of $B_{(s)}^0\to K_S{h}^{+}{h}^{\prime -}$ decays (where $h^{(\prime )}=\pi ,K$), measured analyzing 1 fb${}^{-1}$ of data collected during 20 11.

Proceedings of CKM 2012, the 7th International Workshop on the CKM Unitarity Triangle, University of Cincinnati, USA, 28 September - 2 October 2012

References in corpus (1)

• Measurement of $b$-hadron branching fractions for two-body decays into charmless charged hadrons