Paper

{
  "raw_xml": "<entry>\n    <id>http://arxiv.org/abs/2603.18467v1</id>\n    <title>$d_{N Ω}$ production in $Ωd$ scattering process</title>\n    <updated>2026-03-19T03:59:49Z</updated>\n    <link href='https://arxiv.org/abs/2603.18467v1' rel='alternate' type='text/html'/>\n    <link href='https://arxiv.org/pdf/2603.18467v1' rel='related' title='pdf' type='application/pdf'/>\n    <summary>In the present work, we propose to investigate the production of $d_{N Ω}$ in the $Ω^{-} d \\rightarrow p d_{N Ω}^-$ process by utilizing an effective Lagrangian approach, where $d_{N Ω}$ is identified as $NΩ$ bound state with the binding energy $E_{b}=2.46$ MeV. Experimentally, the J-PARC hadron facility proposed to investigate the $K^{-}p \\rightarrow Ω^{-} \\bar{K}^{(*)0} K^{+}$ process, which is expected to yield an $Ω$ beam with the momentum of approximately 3 GeV. Additionally, theoretical studies of the $ψ(2S) \\rightarrow Ω^{-} \\barΩ^{+}$ process at BESIII provided an $Ω$ beam with the momentum of 774 MeV. Considering these two potential $Ω$ beam sources, our estimations show that for the $Ω^{-} d \\rightarrow p d_{N Ω}^-$ process, the cross sections are $\\Big(329.7^{+26.9}_{-49.6}\\Big)$ $μ$b, $\\Big(174.0^{+26.5}_{-38.2}\\Big)$ $μ$b, $\\Big(16.9^{+7.4}_{-7.7}\\Big)$ $μ$b, and $\\Big(2.0^{+1.8}_{-1.4}\\Big)$ $μ$b at $P_Ω =$ 0.7, 0.9, 2.0, and 4.0 GeV, respectively, where the central values are estimated with $Λ_{r}=1.0$ GeV, and the errors come from the variation of $Λ_{r}$ 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 $d_{N Ω}$ dibaryon predominantly decays into $ΞΛ$. Therefore, we further investigate the $Ω^{-} d \\rightarrow p Ξ^- Λ$ 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.</summary>\n    <category scheme='http://arxiv.org/schemas/atom' term='hep-ph'/>\n    <published>2026-03-19T03:59:49Z</published>\n    <arxiv:primary_category term='hep-ph'/>\n    <arxiv:journal_ref>Eur.Phys.J.C 86 (2026) 3, 270</arxiv:journal_ref>\n    <author>\n      <name>Quan-Yun Guo</name>\n    </author>\n    <author>\n      <name>Jing Liu</name>\n    </author>\n    <author>\n      <name>Dian-Yong Chen</name>\n    </author>\n  </entry>"
}