Delta-excitations and the three-nucleon force
| dc.creator | Epelbaum, E. | |
| dc.creator | Krebs, H. | |
| dc.creator | Meißner, Ulf-G. | |
| dc.date | 2007-12-12 | |
| dc.date | 2007-12-13 | |
| dc.date.accessioned | 2026-07-07T11:39:22Z | |
| dc.date.available | 2026-07-07T11:39:22Z | |
| dc.description | We study the three-nucleon force in chiral effective field theory with explicit Delta-resonance degrees of freedom. We show that up to next-to-next-to-leading order, the only contribution to the isospin symmetric three-nucleon force involving the spin-3/2 degrees of freedom is given by the two-pion-exchange diagram with an intermediate delta, frequently called the Fujita-Miyazawa force. We also analyze the leading isospin-breaking corrections due to the delta. For that, we give the first analysis of the delta quartet mass splittings in chiral effective field theory. The charge-symmetry breaking three-nucleon force due to an intermediate delta excitation is small, of the order of a few keV. | |
| dc.description | 12 pages, 2 figures; minor changes, reference added | |
| dc.identifier | https://arxiv.org/abs/0712.1969 | |
| dc.identifier | http://arxiv.org/abs/0712.1969 | |
| dc.identifier | Nucl.Phys.A806:65-78,2008 | |
| dc.identifier | doi:10.1016/j.nuclphysa.2008.02.305 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/199890 | |
| dc.subject | Nuclear Theory | |
| dc.title | Delta-excitations and the three-nucleon force | |
| dc.type | text |