Semileptonic decays of $B_c$ mesons into charmonium states

Aidos Issadykov, Mikhail A. Ivanov, Guliya Nurbakova

In this work we study the semileptonic decays of $B_c$ meson. We evaluated $B_c\to D(D^{\ast })$, $B_c\to D_s(D_s^{\ast })$ and $B_c\to {\eta }_c(J/\psi )$ tran…