English

$d_{N \Omega}$ production in $\Omega d$ scattering process

High Energy Physics - Phenomenology 2026-03-20 v1

Abstract

In the present work, we propose to investigate the production of dNΩd_{N \Omega} in the ΩdpdNΩ\Omega^{-} d \rightarrow p d_{N \Omega}^- process by utilizing an effective Lagrangian approach, where dNΩd_{N \Omega} is identified as NΩN\Omega bound state with the binding energy Eb=2.46E_{b}=2.46 MeV. Experimentally, the J-PARC hadron facility proposed to investigate the KpΩKˉ()0K+K^{-}p \rightarrow \Omega^{-} \bar{K}^{(*)0} K^{+} process, which is expected to yield an Ω\Omega beam with the momentum of approximately 3 GeV. Additionally, theoretical studies of the ψ(2S)ΩΩˉ+\psi(2S) \rightarrow \Omega^{-} \bar{\Omega}^{+} process at BESIII provided an Ω\Omega beam with the momentum of 774 MeV. Considering these two potential Ω\Omega beam sources, our estimations show that for the ΩdpdNΩ\Omega^{-} d \rightarrow p d_{N \Omega}^- process, the cross sections are (329.749.6+26.9)\Big(329.7^{+26.9}_{-49.6}\Big) μ\mub, (174.038.2+26.5)\Big(174.0^{+26.5}_{-38.2}\Big) μ\mub, (16.97.7+7.4)\Big(16.9^{+7.4}_{-7.7}\Big) μ\mub, and (2.01.4+1.8)\Big(2.0^{+1.8}_{-1.4}\Big) μ\mub at PΩ=P_{\Omega} = 0.7, 0.9, 2.0, and 4.0 GeV, respectively, where the central values are estimated with Λr=1.0\Lambda_{r}=1.0 GeV, and the errors come from the variation of Λr\Lambda_{r} from 0.8 to 1.2 GeV. We also estimate the differential cross sections, which reach the maximum at the forward angle limit. In addition, since the dNΩd_{N \Omega} dibaryon predominantly decays into ΞΛ\Xi \Lambda. Therefore, we further investigate the ΩdpΞΛ\Omega^{-} d \rightarrow p \Xi^- \Lambda process and estimate the relevant cross sections. It is expected that the present estimations can be tested by further experimental measurements at J-PARC and STCF in the future.

Cite

@article{arxiv.2603.18467,
  title  = {$d_{N \Omega}$ production in $\Omega d$ scattering process},
  author = {Quan-Yun Guo and Jing Liu and Dian-Yong Chen},
  journal= {arXiv preprint arXiv:2603.18467},
  year   = {2026}
}
R2 v1 2026-07-01T11:27:26.538Z