Study of the $B_c$ $\to$ $B_s\pi$ decay with the perturbative QCD approach

Abstract

The $B_c$ $\to$ $B_s\pi$ decay is studied with the perturbative QCD approach. Three types of wave functions for $B_s$ meson are considered. The transition form factor $F_0^{B_c\to B_s}(0)$ and the branching ratio $\mathcal{B}r(B_c\to B_s\pi )$ are sensitive to the model of the $B_s$ meson wave functions. With appropriate inputs, our estimate on $\mathcal{B}r(B_c\to B_s\pi )$ is comparable with the recent LHCb measurement. A clear signal of $B_c$ $\to$ $B_s\pi$ decay should be easily observed at the Large Hadron Collider.

17 pages, 2 figures, revtex4, accepted by Science China : Physics, Mechanics & Astronomy

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Cited by in corpus (3)

• $B_c$ $\to$ $BP$, $BV$ decays with the QCD factorization approach
• Charmless $B_c\to VV$ decays in the QCD factorization approach
• Study of the two-body nonleptonic $B_c(2S)$ weak decays with the QCD factorization approach