Nuclear forces from EFT: Recent developments
Nuclear forces are considered based on chiral perturbation theory with and without explicit ∆-isobar degrees of freedom. We discuss the subleading corrections to chiral three-nucleon forces in the ∆-less formalism which contain no additional free parameters. In the formalism with explicit ∆-isob...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2010-04-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20100305001 |
| _version_ | 1818887708413526016 |
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| author | Meißner U.-G. Epelbaum E. Krebs H. |
| author_facet | Meißner U.-G. Epelbaum E. Krebs H. |
| author_sort | Meißner U.-G. |
| collection | DOAJ |
| description | Nuclear forces are considered based on chiral perturbation theory with and without explicit ∆-isobar degrees of freedom. We discuss the subleading corrections to chiral three-nucleon forces in the ∆-less formalism which contain no additional free parameters. In the formalism with explicit ∆-isobar we present the complete next-to-next-to-leading order analysis of isospin-conserving and next-to-leading order analysis of isospinviolating nuclear forces. The perturbative expansion of nuclear forces in the ∆-full case is shown to have much better convergence compared with the ∆-less theory where the ∆-resonance is integrated out and is encoded in certain low-energy constants. |
| first_indexed | 2024-12-19T16:41:31Z |
| format | Article |
| id | doaj.art-7c7f020af12940ef933f917d69be3f34 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T16:41:31Z |
| publishDate | 2010-04-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-7c7f020af12940ef933f917d69be3f342022-12-21T20:13:47ZengEDP SciencesEPJ Web of Conferences2100-014X2010-04-0130500110.1051/epjconf/20100305001Nuclear forces from EFT: Recent developmentsMeißner U.-G.Epelbaum E.Krebs H.Nuclear forces are considered based on chiral perturbation theory with and without explicit ∆-isobar degrees of freedom. We discuss the subleading corrections to chiral three-nucleon forces in the ∆-less formalism which contain no additional free parameters. In the formalism with explicit ∆-isobar we present the complete next-to-next-to-leading order analysis of isospin-conserving and next-to-leading order analysis of isospinviolating nuclear forces. The perturbative expansion of nuclear forces in the ∆-full case is shown to have much better convergence compared with the ∆-less theory where the ∆-resonance is integrated out and is encoded in certain low-energy constants.http://dx.doi.org/10.1051/epjconf/20100305001 |
| spellingShingle | Meißner U.-G. Epelbaum E. Krebs H. Nuclear forces from EFT: Recent developments EPJ Web of Conferences |
| title | Nuclear forces from EFT: Recent developments |
| title_full | Nuclear forces from EFT: Recent developments |
| title_fullStr | Nuclear forces from EFT: Recent developments |
| title_full_unstemmed | Nuclear forces from EFT: Recent developments |
| title_short | Nuclear forces from EFT: Recent developments |
| title_sort | nuclear forces from eft recent developments |
| url | http://dx.doi.org/10.1051/epjconf/20100305001 |
| work_keys_str_mv | AT meißnerug nuclearforcesfromeftrecentdevelopments AT epelbaume nuclearforcesfromeftrecentdevelopments AT krebsh nuclearforcesfromeftrecentdevelopments |