Right-handed current contributions in B to K pi decays

Abstract

We reexamine the right-handed current effects in b to s transitions in nonmanifest left-right models. Using the effective Hamiltonian approach including all possible low-energy operators, we obtain especially the B to K pi decay amplitudes including annihilation contributions, and investigate the right-handed current contributions to CP asymmetries in B to K pi decays. Taking into account the constraints from global analysis of muon decay measurements,

V_{ub}

measurements in inclusive and exclusive B decays, and B_s mixing measurements, we find the allowed regions of new physics parameters satisfying the current experimental data.