Speaker
Andrzej Kupsc
(Uppsala University)
Description
We report a new measurement of the e+e− → π π J/ψ, π π hc, ωχ cross section, the observation of e+e− → γ X(3872), and the new observation of charged particles, Zc(3900) and Zc(4020), as well as theirs neutral particle. The results are very helpful to understand the properties XYZ states
Primary author
Haiping Peng
(UST China)
