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.

17 pages, 3 figures

References in corpus (6)

• Multiquark Resonances
• Can the X(3872) be a 1^{++} four-quark state?
• A Uniform Description of the States Recently Observed at B-factories
• QCD sum rule Study of the $d^{\ast }(2380)$
• Baryonium, tetra-quark state and glue-ball in large N_c QCD
• Analysis of the scalar doubly charmed hexaquark state with QCD sum rules

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