Measurement of branching fractions and direct CP asymmetries in charmless charged two-body B decays at LHCb

摘要

In this paper the results obtained by the LHCb experiment in the sector of charmless charged two-body decays of b hadrons are reviewed. Using a data sample corresponding to an integrated luminosity of 0.37 fb(-1) collected in 2011, LHCb measured the relative branching ratios of the H-b -> h(+)h'(-) decays (where H-b can be either a B-0, B-s(0), or Lambda(b) hadron and h(()'()) stands for pi, K or p). Furthermore, using the full data sample collected in 2011, corresponding to 1.0 fb(-1) of integrated luminosity, LHCb measured the direct CP asymmetries of the B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) decays.