Probing new physics through $B_s^{\ast }\to {\mu }^{+}{\mu }^{-}$ decay

Abstract

We perform a model independent analysis of new physics in $B_s^{\ast }\to {\mu }^{+}{\mu }^{-}$ decay. We intend to identify new physics operator(s) which can provide large enhancement in the branching ratio of $B_s^{\ast }\to {\mu }^{+}{\mu }^{-}$ above its standard model prediction. For this, we consider new physics in the form of vector, axial-vector, scalar and pseudoscalar operators. We find that scalar and pseudoscalar operators do not contribute to the branching ratio of $B_s^{\ast }\to {\mu }^{+}{\mu }^{-}$. We perform a global fit to all relevant $b\to s{\mu }^{+}{\mu }^{-}$ data for different new physics scenarios. For each of these scenarios, we predict $Br(B_s^{\ast }\to {\mu }^{+}{\mu }^{-})$. We find that a significant enhancement in $Br(B_s^{\ast }\to {\mu }^{+}{\mu }^{-})$ is not allowed by any of these new physics operators. In fact, for all new physics scenarios providing a good fit to the data, the branching ratio of $B_s^{\ast }\to {\mu }^{+}{\mu }^{-}$ is suppressed as compared to the SM value. Hence the present $b\to s{\mu }^{+}{\mu }^{-}$ data indicates that the future measurements of $Br(B_s^{\ast }\to {\mu }^{+}{\mu }^{-})$ is expected to be suppressed in comparison to the standard model prediction.

10 pages, no figures

References in corpus (3)

• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Implications of $b\to s$ measurements
• Study of the rare decays $B_{s,d}^{\ast }\to {\mu }^{+}{\mu }^{-}$

Cited by in corpus (10)

• Model independent analysis of $B^{\ast }\to P\ell {\bar{\nu }}_{\ell }$ decay processes
• New physics effects in purely leptonic $B_s^{\ast }$ decays
• Semi-leptonic decays of $B^{\ast }$, $B_s^{\ast }$, and $B_c^{\ast }$ with the Bethe-Salpeter method
• Prospects for studies of $D^{\ast 0}\to {\mu }^{+}{\mu }^{-}$ and $B_{(s)}^{\ast 0}\to {\mu }^{+}{\mu }^{-}$ decays
• A unique discrimination between new physics scenarios in $b\to s{\mu }^{+}{\mu }^{-}$ anomalies
• Flavor signatures of complex anomalous $tcZ$ couplings
• New physics in $b\to s{e}^{+}{e}^{-}$: A model independent analysis
• $B_s^{\ast }\to l^{+}{l}^{-}$ decays in light of recent $B$ anomalies
• Flavor Dependent Effects on Rare Weak Decays of $B_c^{\ast }$ and $B_s^{\ast }$ Mesons
• Search for $B_{(s)}^{\ast 0}\to {\mu }^{+}{\mu }^{-}$ in $B_c^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$ decays