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Right-handed current contributions in B -> K pi decays
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Right-handed current contributions in B -> 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 $B_s^0-\bar{B_s^0}$ mixing measurements, we find the allowed regions of new physics parameters satisfying the current experimental data.
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