Radiative Leptonic Decays of $B_c$ Meson

Chao-Hsi Chang, Jian-Ping Cheng, Cai-Dian Lu

To the leading order, the radiative leptonic decays $B_c\to \gamma \ell \bar{\nu }$ ($\ell =e,\mu$) are studied carefully. In the study, a non-relativistic constituent quark model and the ef…