${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\overline{\mathit \Sigma}}^{-}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M189.18
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{16}$ ${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\overline{\mathit \Sigma}}^{-}}$ not seen 1982
The following data is related to the above value:
$\Gamma({{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\overline{\mathit \Sigma}}^{-}})$ ${\times }$ $\Gamma({{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}})/\Gamma_{\text{total}}$
$\Gamma_{16}\Gamma_{1}/\Gamma$