Weak Annihilation Contribution to Angular Observables in $B_c^{+}\to D^{\ast +}{\ell }^{+}{\ell }^{-}$ Decays

Zohaib Aarfi, Qazi Maaz Us Salam, Ishtiaq Ahmed +2

We analyze the rare semileptonic decays $B_c^{+}\to D^{\ast +}(\to P_1{P}_2){\ell }^{+}{\ell }^{-}$, with $P_1{P}_2=D^{+}\ddot{I}{€}^0$ or $D^0\ddot{I}{€}^{+}$, and $\ell =\hat{I}¼,\ddot{I}„$. We focus on the impact of…