1Institute of Theoretical Physics, College of Applied Science, Beijing University of Technology, Beijing 100022 2Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918, Beijing 100049
We evaluate the rare decays Bs→γe+e- in the standard model, considering the off-shell effect of quarks in Bs meson as well as some contributions neglected in previous works. It is found that the quarks off-shell are large. With the predicted branching ratios at order of 10-8, it is expected that the radiative dileptonic decays will be detected in the LHC-b experiments.
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