Decay $B_s\to \varphi {\ell }^{+}{\ell }^{-}$ in covariant quark model

Stanislav Dubnička, Anna Z. Dubničková, Aidos Issadykov +3

Our article is devoted to the study of the rare $B_s\to \varphi {\ell }^{+}{\ell }^{-}$ decay where $\ell =\mu ,\tau$. We compute the relevant form factors in the framework of the covariant quark model wi…