Mass spectra of and hidden-heavy baryoniums

Bing-Dong Wan

doi:10.1140/epjc/s10052-024-13126-5

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2024 Impact factor 4.8

Particles and Fields

Open Access

Eur. Phys. J. C (2024) 84: 760
https://doi.org/10.1140/epjc/s10052-024-13126-5

Regular Article - Theoretical Physics

Mass spectra of $0^{- -}$ $0^{--}$ and $0^{+ -}$ $0^{+-}$ hidden-heavy baryoniums

Bing-Dong Wan¹^,2^,3^a

¹ Department of Physics, Liaoning Normal University, 116029, Dalian, China
² Center for Theoretical and Experimental High Energy Physics, Liaoning Normal University, 116029, Dalian, China
³ School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, 310024, Hangzhou, China

^a wanbd@lnnu.edu.cn

Received: 22 January 2024
Accepted: 15 July 2024
Published online: 30 July 2024

Abstract

In this work, the spectra of the prospective exotic hidden-charm and hidden-bottom baryonium, viz. the baryon–antibaryon states, with $J^{PC} = 0^{- -}$ $J^{PC}=0^{--}$ and $0^{+ -}$ $0^{+-}$ are investigated in the framework of QCD sum rules. The non-perturbative contributions up to dimension 12 are taken into account. Numerical results indicate that there might exist 3 possible $0^{- -}$ $0^{--}$ hidden-charm baryonium states with masses $(5.22 \pm 0.26)$ $(5.22\pm 0.26)$ , $(5.52 \pm 0.25)$ $(5.52\pm 0.25)$ , and $(5.46 \pm 0.24)$ $(5.46\pm 0.24)$ GeV, and 5 possible $0^{+ -}$ $0^{+-}$ hidden-charm baryonium states with masses $(4.76 \pm 0.28)$ $(4.76\pm 0.28)$ , $(5.24 \pm 0.28)$ $(5.24\pm 0.28)$ , $(5.16 \pm 0.27)$ $(5.16\pm 0.27)$ , $(5.52 \pm 0.27)$ $(5.52\pm 0.27)$ , and $(5.69 \pm 0.27)$ $(5.69\pm 0.27)$ GeV, respectively. The corresponding hidden-bottom partners are found lying in the range of $11.68 - 12.28$ $$11.68-12.28$$ GeV and $11.38 - 12.33$ $$11.38-12.33$$ GeV, respectively. The possible baryonium decay modes are analyzed, which are hopefully measurable in LHC experiments.

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Funded by SCOAP³.

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Mass spectra of 0-- and 0+- hidden-heavy baryoniums

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Mass spectra of $0^{- -}$ $0^{--}$ and $0^{+ -}$ $0^{+-}$ hidden-heavy baryoniums