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arXiv · 2212.03689

Searching for fully-heavy tetraquark states in QCD moment sum rules

Wei Chen·Qi-Nan Wang·Zi-Yan Yang·Hua-Xing Chen·Xiang Liu·T. G. Steele·Shi-Lin Zhu
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Abstract

In this talk, we briefly report the investigations of the mass spectra for the $cc\bar c\bar c, bb\bar b\bar b$, $bc\bar b\bar c$ and $cc\bar b\bar b$ tetraquark states by using the QCD moment sum rule method. The calculations for the fully-charm $cc\bar c\bar c$ tetraquarks have been successfully predicted the existence of di-$J/\psi$ resonances including $X(6900)$ in LHCb's observation. The quantum numbers for these resonance structures are also suggested. More efforts are still needed in both theoretical and experimental aspects to study the properties of these fully-heavy tetraquark states. They may be observed at facilities such as LHCb, CMS and RHIC in the future.

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Wei Chen, Qi-Nan Wang, Zi-Yan Yang, Hua-Xing Chen, Xiang Liu, T. G. Steele, Shi-Lin Zhu. 2022-12-07. Searching for fully-heavy tetraquark states in QCD moment sum rules. https://doi.org/10.1016/j.nuclphysbps.2022.09.016

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