${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\overline{\mathit \nu}}_{{e}}}$   Decay Mode Summary INSPIRE   PDGID:
S008.7
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{9}$ ${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\overline{\mathit \nu}}_{{e}}}$ $<1.5 \times 10^{-3}$ CL= 90% 30
Category: Lepton Family number ($\mathit LF$) or Lepton number ($\mathit L$) violating modes
Note: (L) Violation of total lepton number conservation also implies violation of lepton family number conservation.
Note: Derived from an analysis of neutrino-oscillation experiments.
The following data is related to the above value:
$\Gamma($ ${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\overline{\mathit \nu}}_{{e}}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{9}/\Gamma$