Signature of Shallow Potentials in Deep Sub-barrier Fusion Reactions
| dc.creator | Misicu, S. | |
| dc.creator | Esbensen, H. | |
| dc.date | 2007-02-15 | |
| dc.date.accessioned | 2026-07-07T11:03:31Z | |
| dc.date.available | 2026-07-07T11:03:31Z | |
| dc.description | We extend a recent study that explained the steep falloff in the fusion cross section at energies far below the Coulomb barrier for the symmetric dinuclear system 64Ni+64Ni to another symmetric system, 58Ni+58Ni, and the asymmetric system 64Ni+100Mo. In this scheme the very sensitive dependence of the internal part of the nuclear potential on the nuclear equation of state determines a reduction of the classically allowed region for overlapping configurations and consequently a decrease in the fusion cross sections at bombarding energies far below the barrier. Within the coupled-channels method, including couplings to the low-lying 2+ and 3- states in both target and projectile as well as mutual and two-phonon excitations of these states, we calculate and compare with the experimental fusion cross sections, S-factors, and logarithmic derivatives for the above mentioned systems and find good agreement with the data even at the lowest energies. We predict, in particular, a distinct double peaking in the S-factor for the far subbarrier fusion of 58Ni+58Ni which should be tested experimentally. | |
| dc.description | 34 pages, 10 figures, to appear in Phys. Rev. C | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0702054 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0702054 | |
| dc.identifier | Phys.Rev.C75:034606,2007 | |
| dc.identifier | doi:10.1103/PhysRevC.75.034606 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188619 | |
| dc.subject | Nuclear Theory | |
| dc.title | Signature of Shallow Potentials in Deep Sub-barrier Fusion Reactions | |
| dc.type | text |