Study of some rare decays of B < inf > s < /inf > meson in the fourth generation model

Abstract

We study some rare decays of the B s meson governed by the quark-level transitions b→s, in the fourth generation model popularly known as SM4. Recently, it has been shown that SM4, which is a simple extension of the SM3, can successfully explain several anomalies observed in the CP violation parameters of B and B s mesons. We find that in this model, due to the additional contributions coming from the heavy t ′ quark in the loop, the branching ratios and other observables in rare B s decays deviate significantly from their SM values. Some of these modes are within the reach of LHCb experiments, and a search for such channels is strongly argued. © 2012 American Physical Society.