${{\boldsymbol \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\boldsymbol \mu}^{+}}{{\boldsymbol \mu}^{-}}{{\boldsymbol \gamma}}$ INSPIRE search

$\Gamma($ ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit \gamma}}$ $)/\Gamma($ ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ $)$
$\Gamma_{9}/\Gamma_{7}$
M002R29