Hidden-bottom and -charm hexaquark states in QCD sum rules

Abstract

In this paper, we investigate the spectra of the prospective hidden-bottom and -charm hexaquark states with quantum numbers $J^{PC}=0^{++}$, $0^{-+}$, $1^{++}$ and $1^{--}$ in the framework of QCD sum rules. By constructing appropriate interpreting currents, the QCD sum rules analyses are performed up to dimension 12 of the condensates. Results indicate that there exist two possible baryonium states in $b$-quark sector with masses $11.84\pm 0.22$ GeV and $11.72\pm 0.26$ GeV for $0^{++}$ and $1^{--}$, respectively. The corresponding hidden-charm partners are found lying respectively at $5.19\pm 0.24$ GeV and $4.78\pm 0.23$ GeV. Note that these baryonium states are all above the dibaryon thresholds, which enables their dominant decay modes could be measured at BESIII, BELLEII, and LHCb detectors.

arXiv comment17 pages, 3 figures

References in corpus (19)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Multiquark Resonances
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Can the X(3872) be a 1^{++} four-quark state?
• Analysis of the X(3872), Z_c(3900) and Z_c(3885) as axial-vector tetraquark states with QCD sum rules
• One Explanation for the Exotic State Y(4260)
• Stability and ensemble inequivalence in a globally coupled system
• Interpretation of $Z_c(4025)$ as the Hidden Charm Tetraquark States via QCD Sum Rules
• A Uniform Description of the States Recently Observed at B-factories
• QCD sum rule Study of the $d^{\ast }(2380)$
• Estimating the mass of the hidden charm $1^{+}(1^{+})$ tetraquark state via QCD sum rules
• Investigating different structures of the Z_{b}(10610) and Z_{b}(10650)
• QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra
• Baryonium, tetra-quark state and glue-ball in large N_c QCD
• Baryonium Study in Heavy Baryon Chiral Perturbation Theory
• Baryonium
• Searching for hidden-charm baryonium signals in QCD sum rules
• Analysis of the scalar doubly charmed hexaquark state with QCD sum rules

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• Mass Predictions of Vector ($1^{--}$) Double-gluon Heavy Quarkonium Hybrids from QCD Sum Rules
• Where are the hidden-charm hexaquarks?
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• Spectrum of the molecular hexaquarks
• Double-charm and hidden-charm hexaquark states under the complex scaling method
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