Improved measurements of ${\chi }_{cJ}\to {\Sigma }^{+}{\bar{\Sigma }}^{-}$ and ${\Sigma }^0{\bar{\Sigma }}^0$ decays

BESIII Collaboration

Using a data sample of $(448.1\pm 2.9)\times 10^6\psi (3686)$ events collected with the BESIII detector at the BEPCII collider, we present measurements of branching fractions for the d…