Exploring light hadron physics in J/ψ decays

The unprecedented sample of 10 billion J/ψ events collected with the BESⅢ detector has provided a unique opportunity to study the fundamental properties of matter and the strong interactions between quarks. In addition to the significant progress in the observation of glueball-like particle X(2370) and the hybrid candidate η₁(1855), investigations on the polarization of hyperons and the search for CP violation have been performed with the help of the quantum correlation of hyperon-anti-hyperon pairs in J/ψ decays, which is crucial for understanding matter-antimatter asymmetry in the universe. Additionally, a series of important observations on the light meson decays, including new decay modes and new decay mechanisms, have also been accomplished. We will briefly review these achievements in light hadron physics performed at the BESⅢ facility.