We study the branching ratios of the radiative leptonic Bc decays of Bc+→l+νlγ (l=e,μ,τ). In our analysis, the form factors for Bc→γ transitions are calculated directly in the entire physical range of momentum transfer within the light front framework. We find that the decay branching ratios of Bc+→e+νeγ, Bc+ →μ+νμγ, and Bc+→τ+ντγ are 2.0 × 10-5, 2.3 × 10-5, and (8.8 - 10.7) × 10-5, compared with 1.3 × 10-9, 5.6 × 10-5, and 1.4 × 10-2 for that of Bc+→e+νe, Bc+→μ+νμ, and Bc+→τ+ντ, respectively.
|Number of pages||6|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|Publication status||Published - 1999 Jun 1|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)