${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}$  Decay Mode Summary INSPIRE   PDGID:
M071.53
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{199}$ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}$ ($9.2$ $\pm1.8$) $ \times 10^{-7}$ S=1.0  1802
Category: Radiative decays
The following data is related to the above value:
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}})/\Gamma_{\text{total}}$
$\Gamma_{199}/\Gamma$