CP violation in the radiative dileptonic B-meson decays

We investigate the CP violating asymmetry, the forward backward asymmetry and the CP violating asymmetry in the forward-backward asymmetry for the radiative dileptonic B-meson decays $B_d\to \gamma {\mathrm{\ell }}^{+}{\mathrm{\ell }}^{-}$ for the $\ell= e, \mu, \tau$ channels. It is observed that these asymmetries are quite sizable and $B_d\to \gamma {\mathrm{\ell }}^{+}{\mathrm{\ell }}^{-}$ decays seem promising for investigating CP violation.