${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{e}}}$   Decay Mode Summary INSPIRE   PDGID:
S008.8
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{10}$ ${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{e}}}$ $<8.0 \times 10^{-3}$ CL= 90% 30
Category: Lepton Family number ($\mathit LF$) or Lepton number ($\mathit L$) violating modes
Note: (LF) Lepton family number conservation means separate conservation of each of $\mathit L_{{{\mathit e}}}$, $\mathit L_{{{\mathit \mu}}}$, $\mathit L_{{{\mathit \tau}}}$.
Note: Derived from an analysis of neutrino-oscillation experiments.
The following data is related to the above value:
$\Gamma($ ${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{e}}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{10}/\Gamma$