${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{2}}}^{\,'}{(1525)}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M070.87
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{305}$ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{2}}}^{\,'}{(1525)}}$ ($5.7$ ${}^{+0.8}_{-0.5}$) $ \times 10^{-4}$ S=1.5  1177
Category: Radiative decays
The following data is related to the above value:
$\Gamma({{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{2}}}^{\,'}{(1525)}})/\Gamma_{\text{total}}$
$\Gamma_{305}/\Gamma$