Observation of resonant contribution to the $e^{+}{e}^{-}\to {\Omega }^{-}{\bar{\Omega }}^{+}$ around 4.2 GeV and evidence of $\psi (3770)\to {\Omega }^{-}{\bar{\Omega }}^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +635

Using $e^{+}{e}^{-}$ collision data corresponding to a total integrated luminosity of 22.7 fb${}^{-1}$, collected at center-of-mass energies between 3.7 and 4.7 GeV with the BESIII detecto…