The tetra-heavy baryonium spectra

Abstract

In this work, we investigate the spectra of the prospective tetracharm and tetrabottom baryonium, viz. the baryon-antibaryon states, in the framework of QCD sum rules. The non-perturbative contributions up to dimension 10 are taken into account. Numerical results indicate that there might exist 4 possible tetracharm baryonium states with masses $(7.33\pm 0.12)$, $(7.42\pm 0.13)$, $(7.68\pm 0.17)$, and $(7.76\pm 0.12)$ GeV for the quantum numbers of $0^{-+}$, $1^{--}$, $0^{++}$, and $1^{++}$, respectively. The corresponding tetrabottom partners are found lying respectively at $(19.41\pm 0.15)$, $(19.48\pm 0.15)$, $(19.77\pm 0.19)$ and $(19.84\pm 0.19)$ GeV. Additionally, we also analyze the spectra of the ${\bar{\Xi }}_{bc}{\Xi }_{bc}$ and ${\bar{\Xi }}_{cc}{\Xi }_{bb}$ baryonium states, which lie in the range of $13.77-14.40$ GeV and $13.39-14.14$ GeV, respectively. The possible baryonium decay modes are analyzed, which are hopefully measurable in LHC experiments.

Comments: 30 pages, 17figures. A misprint bug is fixed. arXiv admin note: text overlap with arXiv:2109.07130