Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Observation of new charmonium decays at BESIII

Jul 8, 2022, 7:05 PM
1h 25m
Bologna, Italy

Bologna, Italy

Palazzo della Cultura e dei Congressi
Poster Strong interactions and Hadron Physics Poster Session


Yong Xie (Shandong University)


Based on a 448 million $\psi(2S)$ sample, several decay channels of
charmonium states have been searched for at BESIII recently. The decays of $\chi_{c1} -> \Xi^0 \bar{\Xi^0}$ and $\chi_{c2} -> \Xi^0 \bar{\Xi^0}$, $\psi(2S) -> \Xi^0(1530) \bar{\Xi^0}(1530)$, $\psi(2S) -> \Xi^0(1530) \bar{\Xi^0}$, and $\psi(2S) -> \omega K_s K_s$ have been observed for the first time. Using data sample above 4.0 GeV, the new decay modes of $h_c -> \pi^0 J/\psi$, $\psi_2(3823)-> \gamma \chi_c^2, \pi \pi J/\psi, \eta J/\psi, \pi^0 J/\psi$, and $\gamma \chi_c^0$ have
been searched for.

In-person participation No

Primary author

Yong Xie (Shandong University)

Presentation materials