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Study of $B_{s}\to πρ$ decays in the perturbative QCD approach

Xian-Qiao Yu·Ying Li·Cai-Dian Lü
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Abstract

In this note, we calculate the branching ratio and CP asymmetry parameters of $B_s\toπρ$ in the framework of perturbative QCD approach based on $k_T$ factorization. This decay can occur only via annihilation diagrams in the Standard Model. We find that (a)the charge averaged $Br(B_s\toπ^{+}ρ^{-}+π^{-}ρ^{+})$ is about $(9-12)\times10^{-7}$; $Br(B_s\toπ^{0}ρ^{0}) \simeq 4\times10^{-7}$; and (b) there are sizable CP asymmetries in the processes, which can be tested in the near future Large Hadron Collider beauty experiments (LHC-b) at CERN or BTeV experiments at Fermilab.

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Xian-Qiao Yu, Ying Li, Cai-Dian Lü. 2006-01-11. Study of $B_{s}\to πρ$ decays in the perturbative QCD approach. https://doi.org/10.1103/physrevd.73.017501

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