${{\mathit \mu}^{-}}$ $\rightarrow$ ${{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}{{\mathit \nu}_{{\mu}}}{{\mathit \gamma}}$   Decay Mode Summary INSPIRE   PDGID:
S004.2
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{2}$ ${{\mathit \mu}^{-}}$ $\rightarrow$ ${{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}{{\mathit \nu}_{{\mu}}}{{\mathit \gamma}}$ ($6.0$ $\pm0.5$) $ \times 10^{-8}$ 53
Note: This only includes events with energy of ${{\mathit e}}>$ 45 MeV and energy of ${{\mathit \gamma}}>$ 40 MeV. Since the ${{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}{{\mathit \nu}_{{\mu}}}$ and ${{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}{{\mathit \nu}_{{\mu}}}{{\mathit \gamma}}$ modes cannot be clearly separated, we regard the latter mode as a subset of the former.
The following data is related to the above value:
$\Gamma($ ${{\mathit \mu}^{-}}$ $\rightarrow$ ${{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}{{\mathit \nu}_{{\mu}}}{{\mathit \gamma}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{2}/\Gamma$