Four-nucleon system with $Δ$-isobar excitation
| dc.creator | Deltuva, A. | |
| dc.creator | Fonseca, A. C. | |
| dc.creator | Sauer, P. U. | |
| dc.date | 2008-01-17 | |
| dc.date.accessioned | 2026-07-07T11:55:20Z | |
| dc.date.available | 2026-07-07T11:55:20Z | |
| dc.description | The four-nucleon bound state and scattering below three-body breakup threshold are described based on the realistic coupled-channel potential CD Bonn + $Δ$ which allows the excitation of a single nucleon to a $Δ$ isobar. The Coulomb repulsion between protons is included. In the four-nucleon system the two-baryon coupled-channel potential yields effective two-, three- and four-nucleon forces, mediated by the $Δ$ isobar and consistent with each other and with the underlying two-nucleon force. The effect of the four-nucleon force on the studied observables is much smaller than the effect of the three-nucleon force. The inclusion of the $Δ$ isobar is unable to resolve the existing discrepancies with the experimental data. | |
| dc.description | 11 figures, to be published in Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/0801.2743 | |
| dc.identifier | http://arxiv.org/abs/0801.2743 | |
| dc.identifier | Phys.Lett.B660:471-477,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2007.12.058 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205210 | |
| dc.subject | Nuclear Theory | |
| dc.title | Four-nucleon system with $Δ$-isobar excitation | |
| dc.type | text |