The annihilation decays $B_c^{-}\to {\eta }^{{}^{\prime }}(\eta ,{\pi }^0)l^{-}\bar{\nu }$

Li Gang, Ma Wen-Gan, Jiang Yi +3

We investigate the simileptonic OZI-forbidden annihilation decays $B_c^{-}\to {\eta }^{{}^{\prime }}(\eta ,{\pi }^0)l^{-}\bar{\nu }$ for $l=\mu ,e$ in the perturbative QCD, and carry out a precise calculation withou…