
Observation of structures in the processes e+e-→ωχc1 and ωχc2
The BESIII collaboration recently reported the observation of two resonance structures in the processes e+e-→ωχc1 and e+e-→ωχc2. One structure is likely to be the well-established resonance ψ(4415), and another is observed for the first time. The results have been published in Physics Review Letters on April 19, 2024 [Phys. Rev. Lett. 132, 161901 (2024)].