Study of $B_s\to {\ell }^{+}{\ell }^{-}\gamma$ decays in covariant quark model

Stanislav Dubnička, Anna Z. Dubničková, Mikhail A. Ivanov +3

We study the rare radiative leptonic decays $B_s\to {\ell }^{+}{\ell }^{-}\gamma$ ($\ell =e,\mu ,\tau$) within the Standard Model, considering both the structure-dependent amplitude and bremsstrahlung. I…