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

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

2005-11-23

arxiv.org/abs/hep-ph/0511269v2

Phys.Rev.D73:017501,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 3 figures

Scientific paper

10.1103/PhysRevD.73.017501

In this note, we calculate the branching ratio and CP asymmetry parameters of $B_s\to\pi\rho$ 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 $Br(B_s\to\pi^{+}\rho^{-}+\pi^{-}\rho^{+})$ is about $(9-12)\times10^{-7}$; $Br(B_s\to\pi^{0}\rho^{0}) \simeq 4\times10^{-7}$; 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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