${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ virtual ${{\mathit \gamma}}$ $\rightarrow$ hadrons INSPIRE search

$\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ virtual ${{\mathit \gamma}}$ $\rightarrow$ hadrons$)/\Gamma_{\text{total}}$
$\Gamma_{2}/\Gamma$
M070R4