Speaker
Yong Xie
(Shandong University)
Description
In this talk, recent measurements of the cross-section of $e^+ e^- \to \pi^+ \pi^- J/\psi$, $e^+ e^- \to K^+ K^- J/\psi$, and $e^+ e^- \to \pi^+ \pi^- \psi_2(3823)$ at BESIII will be reported. It will include the new decay modes of the well-known resonance, such as $Y(4230)$, and the new observed structures that strongly coupled to these channels.
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Primary author
Yong Xie
(Shandong University)
