b-s Anomaly Decays in Covariant Quark Model

Abstract

The work is devoted to the study of b-s anomaly decays. We evaluated branching fractions of $B\to K^{\ast }{\mu }^{+}{\mu }^{-}$, $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$ and $B_s\to {\mu }^{+}{\mu }^{-}$ decays and compared them with available experimental data and with results from other theoretical approaches.