${{\boldsymbol Z}}$ $\rightarrow$ ${{\boldsymbol \psi}{(2S)}}{{\boldsymbol \gamma}}$ INSPIRE search

$\Gamma($ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \gamma}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{29}/\Gamma$
S044R05