2025/03/17 by Huang, Yanping
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)
paper · doi:10.48550/arxiv.2503.13286
Radiative decays of the J/ψ particle are of gluon-rich environment, providing an ideal place for hunting glueballs. The X(2370) particle was first discovered in J/ψ→ γπ+π-η′ process in 2011 with the BESIII experiment at BEPCII Collider, and later it was confirmed in J/ψ→γKKη′ decays. In 2024, with a sample of 10 billion J/ψ events collected at the BESIII detector, the spin-parity of the X(2370) was determined to be 0-+ for the first time in the partial wave analysis of J/ψ→ γK0SK0S η′ process. Recently, new decay modes of X(2370)→ K0SK0Sπ0, π0π0η and a0π0 were observed. The mass, spin-parity quantum numbers, production and decay properties of the X(2370) particle are consistent with the features of the lightest pseudoscalar glueball.