Subleading D-like Three-Nucleon Interactions
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866908833278853120 |
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| author | Huesmann, Henri Paul Krebs, Hermann Epelbaum, Evgeny |
| author_facet | Huesmann, Henri Paul Krebs, Hermann Epelbaum, Evgeny |
| contents | We consider subleading contributions to the three-nucleon force from tree-level diagrams involving a single-pion exchange and a contact interaction between two nucleons, which appear at fifth order in the chiral expansion. We show that the corresponding D-like three-nucleon potential depends on 16 low-energy constants, which need to be determined from few-body data. Assuming that their numerical values are governed by the intermediate Δ(1232) excitation mechanism, the considered three-nucleon force can be approximated using 4 low-energy constants that parametrize the short-range nucleon-nucleon to nucleon-Δ transition amplitude. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_12879 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Subleading D-like Three-Nucleon Interactions Huesmann, Henri Paul Krebs, Hermann Epelbaum, Evgeny Nuclear Theory We consider subleading contributions to the three-nucleon force from tree-level diagrams involving a single-pion exchange and a contact interaction between two nucleons, which appear at fifth order in the chiral expansion. We show that the corresponding D-like three-nucleon potential depends on 16 low-energy constants, which need to be determined from few-body data. Assuming that their numerical values are governed by the intermediate Δ(1232) excitation mechanism, the considered three-nucleon force can be approximated using 4 low-energy constants that parametrize the short-range nucleon-nucleon to nucleon-Δ transition amplitude. |
| title | Subleading D-like Three-Nucleon Interactions |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2602.12879 |