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arXiv · 2607.09430

Analysis of the hidden-charm pentaquark candidates in the $J/\psi \Omega$ mass spectrum via the QCD sum rules

Zhi-Gang Wang
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Abstract

We explore the diquark-diquark-antiquark type $sssc\bar{c}$ pentaquark states with the isospin-spin-parity $IJ^{P}=0{\frac{1}{2}}^-$, $0{\frac{3}{2}}^-$ and $0{\frac{5}{2}}^-$ via the QCD sum rules in details and obtain the ground state mass spectrum. And we suggest to hunt for these exotic states in the exclusive decay $\Omega_b^- \to P_{csss}^-\phi \to J/\psi \Omega^- \phi $. Observations of the $P_{csss}$ states would shed light on the nature of exotic states and provide an excellent opportunity to distinguish the diquark-diquark-antiquark type pentaquark states from meson-baryon type molecular states.

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Zhi-Gang Wang. 2026-07-10. Analysis of the hidden-charm pentaquark candidates in the $J/\psi \Omega$ mass spectrum via the QCD sum rules. https://arxiv.org/abs/2607.09430

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