${{\mathit B}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{{\mu}}}}$ anything  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
S049.102
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{2}$ ${{\mathit B}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{{\mu}}}}$ anything
Category: Semileptonic and leptonic modes
Note: These values are model dependent.
The following data is related to the above value:
$\Gamma({{\mathit B}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}$ anything$)/\Gamma({{\mathit B}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{{\mu}}}}$ anything$)$
$\Gamma_{1}/\Gamma_{2}$