Study of some rare decays of B_s meson in the fourth generation model

Abstract

We study some rare decays of $B_s$ meson governed by the quark level transitions $b\to s$, 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 $t^{\prime }$ 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 experiment and search for such channels are strongly argued.

21 pages, 5 figures, version to appear in Phys. Rev. D

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Cited by in corpus (7)

• Search for $B_s^0\to \gamma \gamma$ and a measurement of the branching fraction for $B_s^0\to \varphi \gamma$
• Masses of a Fourth Generation with Two Higgs Doublets
• The 125 GeV Higgs in the context of four generations with 2 Higgs doublets
• Chiral heavy fermions in a two Higgs doublet model: 750 GeV resonance or not
• Lepton polarization asymmetry in $B_{(}s,d{)}^{\ast }$ arrow ${\mu }^{+}{\mu }^{-}$ with new Z' couplings
• $B \to K \etap$ decays in the SM with fourth generation fermions
• Impact on the decay rate of $B_s\to {\mu }^{+}{\mu }^{-}$ from the dispersive two-photon transition