${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \Sigma}^{0}}{{\overline{\mathit \Sigma}}^{0}}$  Decay Mode Summary INSPIRE   JSON PDGID:
M189.23
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{18}$ ${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \Sigma}^{0}}{{\overline{\mathit \Sigma}}^{0}}$ 1980
The following data is related to the above decay:
$\Gamma({{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \Sigma}^{0}}{{\overline{\mathit \Sigma}}^{0}})$ ${\times }$ $\Gamma({{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}})/\Gamma_{\text{total}}$
$\Gamma_{18}\Gamma_{1}/\Gamma$