Measurement of the cross section for $e^{+}{e}^{-}\to {\Xi }^{-}{\bar{\Xi }}^{+}$ and observation of an excited $\Xi$ baryon

BESIII Collaboration, M. Ablikim, M. N. Achasov +483

Using a total of 11.0 fb${}^{-1}$ of $e^{+}{e}^{-}$ collision data with center-of-mass energies between 4.009 GeV and 4.6 GeV and collected with the BESIII detector at BEPCII, we measu…