Study of $J/\psi$ and $\psi (3686)$ decay to $\Lambda \bar{\Lambda }$ and ${\Sigma }^0{\bar{\Sigma }}^0$ final states

BESIII Collaboration, M. Ablikim, M. N. Achasov +426

Using $1310.6\times 10^6$ $J/\psi$ and $447.9\times 10^6$ $\psi (3686)$ events collected with the BESIII detector at the BEPCII $e^{+}{e}^{-}$ collider, the branching fractions and the angula…