First measurements of J/Psi decays into ${\Sigma }^{+}{\bar{\Sigma }}^{-}$ and ${\Xi }^0{\bar{\Xi }}^0$

BES Collaboration

Based on 58 million J/Psi events collected with the BESII detector at the BEPC, the baryon pair processes J/Psi to ${\Sigma }^{+}{\bar{\Sigma }}^{-}$ and J/Psi to ${\Xi }^0{\bar{\Xi }}^0$ are observed for the fir…