On the Decay Mode $B^- \to μ^- \bar ν_μγ$

Details On the Decay Mode $B^- \to μ^- \bar ν_μγ$ On the Decay Mode $B^- \to μ^- \bar ν_μγ$

1996-06-04

arxiv.org/abs/hep-ph/9606219v1

Phys.Lett.B386:328-334,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 9 pages, 2 uuencoded postscript figures

Scientific paper

10.1016/0370-2693(96)00955-0

A QCD relativistic potential model is employed to compute the decay rate and the photon spectrum of the process $B^- \to \mu^- {\bar \nu}_\mu \gamma$. The result ${\cal B}(B^- \to \mu^- {\bar \nu}_\mu \gamma) \simeq 1 \times 10^{-6}$ confirms the enhancement of this decay channel with respect to the purely leptonic mode, and supports the proposal of using this process to access relevant hadronic quantities such as the $B$-meson leptonic decay constant and the CKM matrix element $V_{ub}$.

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