The Institute of High Energy Physics at the Chinese Academy of Sciences said a China-led team in the Beijing Spectrometer III (BESIII) international collaboration has, after 15 years of experiments, provided the first experimental confirmation of a new form of matter: the glueball. The Standard Model predicts glueballs as bound states of gluons arising from attractive gluon self-interaction; such particles had not previously been observed experimentally.

2026-08-06

The Institute of High Energy Physics at the Chinese Academy of Sciences said a China-led team in the Beijing Spectrometer III (BESIII) international collaboration has, after 15 years of experiments, provided the first experimental confirmation of a new form of matter: the glueball. The Standard Model predicts glueballs as bound states of gluons arising from attractive gluon self-interaction; such particles had not previously been observed experimentally.