Level crossing of particle-hole and mesonic modes in eta mesic nuclei
| dc.creator | Jido, D. | |
| dc.creator | Kolomeitsev, E. E. | |
| dc.creator | Nagahiro, H. | |
| dc.creator | Hirenzaki, S. | |
| dc.date | 2008-01-31 | |
| dc.date.accessioned | 2026-07-07T11:55:44Z | |
| dc.date.available | 2026-07-07T11:55:44Z | |
| dc.description | We study eta meson properties in the infinite nuclear matter and in atomic nuclei with an emphasis on effects of the eta coupling to N*(1535)--nucleon-hole modes. The N*(1535) resonance, which dominates the low-energy eta-nucleon scattering, can be seen as a chiral partner of the nucleon. The change of the chiral mass gap between the N* and the nucleon in a nuclear medium has an impact on the properties of the eta-nucleus system. If the N*-nucleon mass gap decreases with a density increase (chiral symmetry restoration) the calculations show the existence of the resonance state at the energy about 60 MeV and two bound eta-nucleus states with the binding energies about -80 MeV. These states can have strong effect on predicted cross sections of the ^12C (gamma,p) ^11B reaction with eta-meson production. | |
| dc.description | 22 pages, 12 figures | |
| dc.identifier | https://arxiv.org/abs/0801.4834 | |
| dc.identifier | http://arxiv.org/abs/0801.4834 | |
| dc.identifier | Nucl.Phys.A811:158-178,2008 | |
| dc.identifier | doi:10.1016/j.nuclphysa.2008.07.012 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205343 | |
| dc.subject | Nuclear Theory | |
| dc.title | Level crossing of particle-hole and mesonic modes in eta mesic nuclei | |
| dc.type | text |