Study of $B_{c}^{\ast}$ ${\to}$ $ψ(1S,2S)P$, $η_{c}(1S,2S)P$ weak decays

Abstract

Motivated by the potential prospects of the $B_{c}^{\ast}$ meson samples at hadron colliders, the bottom-changing $B_{c}^{\ast}$ ${\to}$ $ψ(1S,2S)P$, $η_{c}(1S,2S)P$ weak decays are first studied with the perturbative QCD approach, where $P$ $=$ $π$ and $K$. It is found that branching ratio of the CKM-favored $B_{c}^{\ast}$ ${\to}$ $J/ψπ$ decay is about ${\sim}$ ${\cal O}(10^{-8})$, which might be measurable at the future LHC experiments.

18 pages, 3 figures, revtex