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arXiv · 2104.03103

Analysis of the $\overlineΞ_{cc}Ξ_{cc}$ hexaquark molecular state with the QCD sum rules

Zhi-Gang Wang
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Abstract

In this work, we construct the color-singlet-color-singlet type six-quark pseudoscalar current to investigate the $\overlineΞ_{cc}Ξ_{cc}$ hexaquark molecular state with the QCD sum rules, the predicted mass $M_X \sim 7.2\,\rm{GeV}$ supports assigning the $X(7200)$ to be the $\overlineΞ_{cc}Ξ_{cc}$ hexaquark molecular state with the quantum numbers $J^{PC}=0^{-+}$. The $X(7200)$ can decay through fusions of the $\bar{c}c$ and $\bar{q}q$ pairs, we can search for the $X(7200)$ and explore its properties in the $J/ψJ/ψ$, $χ_{c1}χ_{c1}$, $D^*\bar{D}^*$ and $D_1\bar{D}_1$ invariant mass spectrum in the future.

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Zhi-Gang Wang. 2021-06-04. Analysis of the $\overlineΞ_{cc}Ξ_{cc}$ hexaquark molecular state with the QCD sum rules. https://doi.org/10.1016/j.physletb.2021.136464

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