${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}{(2225)}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M070.126
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{290}$ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}{(2225)}}$ ($3.14$ ${}^{+0.50}_{-0.19}$) $ \times 10^{-4}$ 752
Category: Radiative decays
The following data is related to the above value:
$\Gamma({{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}{(2225)}})/\Gamma_{\text{total}}$
$\Gamma_{290}/\Gamma$