Complete Analysis on the Short Distance Contribution of $B_s\to {\ell }^{+}{\ell }^{-}\gamma$ in Standard Model

Wenyu Wang, Zhao-Hua Xiong, Si-Hong Zhou

Using the $B_s$ meson wave function extracted from non-leptonic $B_s$ decays, we evaluate the short distance contribution of rare decays $B_s\to {\ell }^{+}{\ell }^{-}\gamma (\ell =e,\mu )$ in the sta…