${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{{\mu}}}}{{\mathit X}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
S041.813
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{4}$ ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{{\mu}}}}{{\mathit X}}$ ($11.3$ $\pm3.5$) $ \times 10^{-2}$
Category: Semileptonic and leptonic modes
The following data is related to the above value:
$\Gamma({{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \nu}_{{{\tau}}}}{{\mathit X}})/\Gamma({{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{{\mu}}}}{{\mathit X}})$
$\Gamma_{8}/\Gamma_{4}$