supported by the National Natural Science Foundation of China(Grant No.12225509),the National Natural Science Foundation of China(Grant No.12247101);the Polish National Science Centre(Grant No.2024/53/B/ST2/00975);the Fundamental Research Funds for the Central Universities(Grant No.lzujbky-2024-jdzx06);the Natural Science Foundation of Gansu Province(Grant No.22JR5RA389);the‘111 Center’under Grant No.B20063。
Decays of charmonium into hyperon and antihyperon pairs provide a pristine laboratory for exploring hyperon properties,such as their polarization and decay parameters,and for conducting tests of fundamental symmetries...