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arXiv · 2405.04145

The ground states and first radial excitations of the vector tetraquark states with explicit P-waves via the QCD sum rules

Zhi-Gang Wang
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Abstract

In this work, we choose the diquark-antidiquark type four-quark currents with an explicit P-wave between the diquark and antidiquark pairs to study the ground states and first radial excitations of the hidden-charm tetraquark states with the quantum numbers $J^{PC}=1^{--}$. And we obtain the lowest vector tetraquark masses and make possible assignments of the existing $Y$ states. There indeed exists a hidden-charm tetraquark state with the $J^{PC}=1^{--}$ at the energy about $4.75\,\rm{GeV}$ as the first radial excitation to account for the BESIII data.

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Zhi-Gang Wang. 2024-05-07. The ground states and first radial excitations of the vector tetraquark states with explicit P-waves via the QCD sum rules. https://doi.org/10.1088/1674-1137%2Fad5ae5

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