Measurement of the cross section for $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }$ and evidence of the decay $\psi (3770)\to \Lambda \bar{\Lambda }$

BESIII Collaboration, M. Ablikim, M. N. Achasov +502

The Born cross section of the process $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }$ is measured at 33 center-of-mass energies between 3.51 and 4.60 GeV using data corresponding to the total integr…