Observation of $\eta (2600)$ and Threshold Enhancements in the $\Lambda \bar{\Lambda }$ System

BESIII Collaboration, M. Ablikim, M. N. Achasov +716

Using $2712.4\pm 14.3$ million $\psi (3686)$ events collected with the BESIII detector, the $\Lambda \bar{\Lambda }$ system produced in $\psi (3686)$ radiative decays is studied. A model-independent part…