${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit e}^{-}}$ INSPIRE search

$\Gamma($ ${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit e}^{-}})/\Gamma($ ${{\mathit \pi}^{0}}$ $\rightarrow$ 2 ${{\mathit \gamma}})$
$\Gamma_{4}/\Gamma_{1}$
S009R3