Observation of $B_c^{+}\to J/\psi D^{(\ast )}{K}^{(\ast )}$ decays

LHCb collaboration, R. Aaij, B. Adeva +764

A search for the decays $B_c^{+}\to J/\psi D^{(\ast )0}{K}^{+}$ and $B_c^{+}\to J/\psi D^{(\ast )+}{K}^{\ast 0}$ is performed with data collected at the LHCb experiment corresponding to an integrated lumino…