${{\boldsymbol \psi}{(4260)}}$ $\rightarrow$ ${{\boldsymbol J / \psi}}{{\boldsymbol \eta}}$ INSPIRE search

$\Gamma($ ${{\mathit \psi}{(4260)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \eta}}$ $)$ ${\times }\Gamma($ ${{\mathit \psi}{(4260)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{8}\Gamma_{1}/\Gamma$
M074G01