The Rare Radiative Annihilation Decays ${\bar{B}}_{s,d}^0\to J/\psi \gamma$

Gongru Lu, Rumin Wang, Yadong Yang

We investigate the physics potential of the annihilation decays ${\bar{B}}_{s,d}^0\to J/\psi$ $\gamma$ in the Standard Model and beyond. In naive factorization approach, the branching ratio…