Motivated by the potential prospects of the $B_c^{*}$ meson samples at hadron colliders, the bottom-changing $B_c^{*}\to \psi (1S,2S)P$, ${\eta }_c(1S,2S)P$ weak decays are first studied with the perturbative QCD approach, where $P=\pi$ and $K$. It is found that the branching ratio of the Cabibbo-Kobayashi-Maskawa-favored $B_c^{*}\to J/\psi \pi$ decay is about $\sim \mathcal{O}(10^{-8})$, which might be measurable at the future LHC experiments.

• Received 19 October 2016

DOI:https://doi.org/10.1103/PhysRevD.95.036024