${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}^{\,'}{(958)}}$  Decay Mode Summary INSPIRE   PDGID:
M071.54
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{187}$ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}^{\,'}{(958)}}$ ($1.24$ $\pm0.04$) $ \times 10^{-4}$ 1719
Category: Radiative decays
The following data is related to the above value:
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}^{\,'}{(958)}})/\Gamma_{\text{total}}$
$\Gamma_{187}/\Gamma$