${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{J}}}{(2220)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}}{{\overline{\mathit K}}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M070.137
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{340}$ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{J}}}{(2220)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}}{{\overline{\mathit K}}}$ $<4.1 \times 10^{-5}$ CL= 90%
Category: Radiative decays
The following data is related to the above value:
$\Gamma({{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{J}}}{(2220)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}}{{\overline{\mathit K}}})/\Gamma_{\text{total}}$
$\Gamma_{340}/\Gamma$