Rare radiative B→τ+τ−γ decay

Abstract The radiative B → τ + τ − γ decay is investigated in the framework of the Standard Model. When only short (short and long together) distance contributions are taken into account, the Branching Ratio is found as 9.54×10 −9 (1.52×10 −8 ), for the value of the cut δ =0.01 imposed on the photon energy.