Mass spectrum of the ΩΩ states

2025/08/14 by Wan, Bing-Dong, Zhang, Jun-Hao, Zhang, Yan · 1 citation
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2508.10763

Abstract

In this study, we investigate the mass spectrum of the ΩΩ states with quantum numbers J^PC=0^-+, 1^--, 0⁺⁺, and 1⁺⁺ within the framework of QCD sum rules. Employing suitably constructed interpolating currents, the analyses are carried out with the operator product expansion (OPE) including condensate contributions up to dimension 12. Our results indicate the existence of four possible baryonium states with masses m_0^-+=(3.22±0.07) GeV, m_1^--=(3.28±0.08) GeV, m_0⁺⁺=(3.46±0.09) GeV, and m_1⁺⁺=(3.54±0.11) GeV. For the 0^-+ and 1^-- states, the predicted masses lie below the corresponding dibaryon thresholds, suggesting possible bound-state configurations. In contrast, the 0⁺⁺ and 1⁺⁺ states are found above the respective thresholds, implying resonance-like behavior. Potential decay channels for these baryonium candidates are discussed, with emphasis on those accessible to current experimental facilities such as BESIII, Belle II, and LHCb.

Citations

• Lattice QCD Study of Positive Parity Dibaryons with Maximal Charm and Strangeness

Cited by

• Hidden-charm and -bottom tetraquark states with J^PC=1^-+ via QCD sum rules
• Light baryonium states with exotic quantum numbers

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