${{\mathit \psi}{(4160)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit X}{(3930)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit J / \psi}}$   Decay Mode Summary INSPIRE   PDGID:
M025.40
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{39}$ ${{\mathit \psi}{(4160)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit X}{(3930)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit J / \psi}}$ $<8.8 \times 10^{-5}$ CL= 90%
The following data is related to the above value:
$\Gamma($ ${{\mathit \psi}{(4160)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit X}{(3930)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit J / \psi}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{39}/\Gamma$