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arXiv · 1405.3831

Prediction of a missing higher charmonium around 4.26 GeV in $J/ψ$ family

Li-Ping He·Dian-Yong Chen·Xiang Liu·Takayuki Matsuki
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Abstract

Inspired by the similarity of mass gaps of $J/ψ$ and $Υ$ families, the prediction of missing higher charmonium with mass $4263$ MeV and very narrow width is made. In addition, the properties of two charmonium-like states, $X(3940)$ and $X(4160)$, and charmonium $ψ(4415)$ are discussed. Here, $X(3940)$ as $η_c(3S)$ is established while the explanation of $X(4160)$ to be $η_c(4S)$ is fully excluded and $η_c(4S)$ is typically a very narrow state. These predictions can be accessible at BESIII, Belle and BelleII in near future.

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Li-Ping He, Dian-Yong Chen, Xiang Liu, Takayuki Matsuki. 2014-12-10. Prediction of a missing higher charmonium around 4.26 GeV in $J/ψ$ family. https://doi.org/10.1140/epjc%2Fs10052-014-3208-5

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