Study of ${\rm Y}(nS)$ $\to$ $B_{c}P$ decays with perturbative QCD approach

Abstract

With the potential prospects of the ${\rm Y}(nS)$ at high-luminosity dedicated heavy-flavor factories, the color-favored ${\rm Y}(nS)$ $\to$ $B_c\pi$, $B_{c}K$ weak decays are studied with the pQCD approach. It is found that branching ratios for the ${\rm Y}(nS)$ $\to$ $B_c\pi$ decay are as large as the order of $\mathcal{O}(10^{-11})$, which might be measured promisingly by the future experiments.

Comments: 14 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1610.06986