Examination of the lattice QCD-motivated strong attractive $ΩN$ potentials in the $Ω^- n p$ system
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866914545555996672 |
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| author | Filikhin, I. Kezerashvili, R. Ya. Vlahovic, B. |
| author_facet | Filikhin, I. Kezerashvili, R. Ya. Vlahovic, B. |
| contents | Within the framework of the Faddeev equations in configuration space, we examine the $Ω^{-} np$ system, employing strongly attractive lattice HAL QCD and Yukawa-type meson exchange potentials for the $ΩN$ interaction. Our formalism incorporates the attractive Coulomb force between the $Ω^{-}$ and proton, treating the system as three non-identical particle pairs (the $ABC$ model). In this study, we assess the impact of the Coulomb interaction on the system and compare our results with recent $ΩNN$ ($AAC$ model) calculations obtained using various approaches. The $ABC$ model yields low-energy characteristics for the \(ΩNN\) system that differ from previous calculations. The Coulomb potential has a marginal perturbative effect on the $AAC$ system, shifting the three-body binding energy by the Coulomb energy of the two-body $BC$ subsystem, but only slightly deviating the spatial configuration from isosceles triangle symmetry. These effects are primarily driven by the strong \(ΩN\) interaction. We demonstrate that the large binding energy of the $Ω^{-} np$ system arises from the short-range behavior of the $ΩN$ potentials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_04655 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Examination of the lattice QCD-motivated strong attractive $ΩN$ potentials in the $Ω^- n p$ system Filikhin, I. Kezerashvili, R. Ya. Vlahovic, B. Nuclear Theory High Energy Physics - Lattice Within the framework of the Faddeev equations in configuration space, we examine the $Ω^{-} np$ system, employing strongly attractive lattice HAL QCD and Yukawa-type meson exchange potentials for the $ΩN$ interaction. Our formalism incorporates the attractive Coulomb force between the $Ω^{-}$ and proton, treating the system as three non-identical particle pairs (the $ABC$ model). In this study, we assess the impact of the Coulomb interaction on the system and compare our results with recent $ΩNN$ ($AAC$ model) calculations obtained using various approaches. The $ABC$ model yields low-energy characteristics for the \(ΩNN\) system that differ from previous calculations. The Coulomb potential has a marginal perturbative effect on the $AAC$ system, shifting the three-body binding energy by the Coulomb energy of the two-body $BC$ subsystem, but only slightly deviating the spatial configuration from isosceles triangle symmetry. These effects are primarily driven by the strong \(ΩN\) interaction. We demonstrate that the large binding energy of the $Ω^{-} np$ system arises from the short-range behavior of the $ΩN$ potentials. |
| title | Examination of the lattice QCD-motivated strong attractive $ΩN$ potentials in the $Ω^- n p$ system |
| topic | Nuclear Theory High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2504.04655 |