Observation of resonance structures in e+ e- → π+ π- ψ2(3823) The BESIII experiment recently reported an observation of resonance structures in the e+ e-→π+ π- ψ2(3823) process, and also achieved the most precise mass measurement of theψ2(3823) state. These results have been published in Physical Review Letters [Phys. Rev. Lett. 129, 102003 (2022)].