${\rm Y}(nS)$ $\to$ $B_c^{\ast }D$ decays with perturbative QCD approach

Abstract

The ${\rm Y}(nS)$ $\to$ $B_c^{\ast }D$ weak decays ($n$ $=$ $1$, $2$, $3$) are investigated with perturbative QCD approach. It is found that the CKM-favored ${\rm Y}(nS)$ $\to$ $B_c^{\ast }{D}_s$ decays have branching ratio of $\mathcal{O}(10^{-10})$, which might be potentially accessible to the future LHC and SuperKEKB experiments.

arXiv comment18 pages, 3 figures, revtex

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• $B_u$ $\to$ $\psi M$ decays and $S$-$D$ wave mixing effects
• Study of the ${\bar{B}}_q^{\ast }$ $\to$ $DM$ decays with perturbative QCD approach