${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit \nu}_{{\mu}}}{{\overline{\mathit \nu}}_{{\mu}}}$   Decay Mode Summary INSPIRE   PDGID:
S009.12
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{9}$ ${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit \nu}_{{\mu}}}{{\overline{\mathit \nu}}_{{\mu}}}$ $<1.6 \times 10^{-6}$ CL= 90% 67
The following data is related to the above value:
$\Gamma($ ${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit \nu}_{{\mu}}}{{\overline{\mathit \nu}}_{{\mu}}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{9}/\Gamma$