Radiative Leptonic Decays of Bc Meson
Abstract
To the leading order, the radiative leptonic decays Bc γ ( =e, μ) are studied carefully. In the study, a non-relativistic constituent quark model and the effective Lagrangian for the heavy flavour decays are used. As a result, the branching ratios turn out to be of the orders of 10-5 for Bc γ μ or for Bc γ e . Based on this study, we point out the decays being accessible experimentally at the future LHC, and the possibility to determine the decay constant fBc through the radiative decays.
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