Study of $B_s\to (\eta ,{\eta }^{\prime },\varphi )\ell \bar{\ell }$ Decays

C. Q. Geng, C. C. Liu

We study the rare decays of $B_s\to M_s\ell \bar{\ell }$ ($M_s=\eta ,{\eta }^{\prime },\varphi$ and $\ell =\nu ,e,\mu ,\tau$) in the standard model. With the hadronic form factors evaluated in the light front and…