Rare radiative leptonic B-decays
1 D. V. Skobeltsyn Institute of Nuclear Physics, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia
2 M. V. Lomonosov Moscow State University, Physical Facutly, 119991 Moscow, Russia
3 Institue for High-Energy Physics, Austrian Academy of Sciences, Nikolsdorfergasse 18, A-1050 Vienna, Austria
4 Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1050 Vienna, Austria
5 A. I. Alikhanov Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia
Published online: 28 October 2016
We obtain predictions for B(s) → e+e−γ and B(s) → μ+μ−γ decays. All the contributions containing long-distance QCD effects are calculated in the framework of relativistic quark model. The contributions of the light vector-meson resonances related to the virtual photon emission from valence quarks of the B-meson are included. The highest branching ratios for the radiative leptonic B-decays are B(B̄0s → e+e−γ) = 18.8×10−9 and B(B0s → μ+μ−γ) = 12.2×10−9. We also give the distribution of the foward-backward asymmetry.
© The Authors, published by EDP Sciences, 2016
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