${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$ INSPIRE search

$\Gamma($ ${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \nu}}{{\overline{\mathit \nu}}})/\Gamma_{\text{total}}$
$\Gamma_{11}/\Gamma$
S009R15