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arXiv · 1303.0660

Complete Analysis on the Short Distance Contribution of $B_s\to \ell^+\ell^-γ$ in Standard Model

Wenyu Wang·Zhao-Hua Xiong·Si-Hong Zhou
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Abstract

Using the $B_s$ meson wave function extracted from non-leptonic $B_s$ decays, we evaluate the short distance contribution of rare decays $B_s\to \ell^+\ell^-γ(\ell=e,μ)$ in the standard model, including all the possible diagrams. We focus on the contribution from four-quark operators which are not taken into account properly in previous researches. We found that the contribution is large, leading to the branching ratio of $B_s\to \ell^+\ell^-γ$ being nearly enhanced by a factor 3 and up to $1.7\times 10^{-8}$. The predictions for such processes can be tested in the LHC-b and B factories in near future.

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Wenyu Wang, Zhao-Hua Xiong, Si-Hong Zhou. 2013-03-04. Complete Analysis on the Short Distance Contribution of $B_s\to \ell^+\ell^-γ$ in Standard Model. https://doi.org/10.1088/0256-307x%2F30%2F11%2F111202

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