PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Parallel: Strong Interactions and Hadron Physics
New observation of Charmonium decays at BESIII
W. Song
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Pre-published on: February 13, 2021
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With the world's largest $\psi(2S)$ sample collected with BESIII detector, a few new decay modes of $\psi(2S)$, $h_c$ and $\eta_c$ are observed for the first time, namely $\psi(2S) \to p\bar{p}\phi$, $h_c \to p\bar{p}\pi^{+}\pi^{-}$, $h_c \to 2(\pi^{+}\pi^{-})\pi^{0}$, $\chi_{CJ} \to 4 K_{S}^{0}$, $\chi_{CJ} \to \phi \phi \eta$, $\chi_{CJ} \to \Sigma^{+}\bar{p}K_{S}^{0}$ and $\psi(2S)$ or $\chi_{CJ} \to \bar{p} K^{*+}\Lambda$.Intermediate states in the three body decays mentioned above are searched, and no new state is observed significantly.
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