Isospin mixing in a particle-number conserving microscopic approach
| dc.creator | Bonneau, L. | |
| dc.creator | Bartel, J. | |
| dc.creator | Quentin, P. | |
| dc.date | 2007-05-17 | |
| dc.date.accessioned | 2026-07-07T08:02:04Z | |
| dc.date.available | 2026-07-07T08:02:04Z | |
| dc.description | We calculate the isospin-mixing parameter for several Tz=-1, Tz=0 and Tz=1 nuclei from Mg to Sn in the particle-number conserving Higher Tamm-Dancoff approach taking into account the pairing correlations. In particular we investigate the role of the Coulomb interaction and the |Tz|=1 pairing correlations. To do so the HTDA approach is implemented with the SIII Skyrme effective nucleon-nucleon interaction in the mean-field channel and a delta interaction in the pairing channel. We conclude from this investigation that the pairing correlations bring a large contribution to isospin-symmetry breaking, whereas the Coulomb interaction turns out to play a less important role. Moreover we find that the isospin-mixing parameters for Tz=-1 and Tz=1 nuclei are comparable while they are about twice as large for Tz=0 nuclei (between 3% and 6%, including doubly magic nuclei). | |
| dc.description | 13 pages, 7 figures, 3 tables; submitted to Physical Review C | |
| dc.identifier | https://arxiv.org/abs/0705.2587 | |
| dc.identifier | http://arxiv.org/abs/0705.2587 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/129116 | |
| dc.subject | Nuclear Theory | |
| dc.title | Isospin mixing in a particle-number conserving microscopic approach | |
| dc.type | text |