Observation of New Radiative Decays of Excited Hyperons Λ(1520)/Λ(1690) at BESIII
The BESIII Collaboration led by the Institute of High Energy Physics of the Chinese Academy of Sciences achieved a significant breakthrough in the study of electromagnetic radiative decays of excited hyperons. The researchers observed, for the first time, the radiative decays of the excited states Λ(1520) and Λ(1690) into a photon (γ) and a Σ? particle.
Apr 22, 2026