Existence of One-Body Barrier Revealed in Deep Sub-Barrier Fusion
| dc.creator | Ichikawa, Takatoshi | |
| dc.creator | Hagino, Kouichi | |
| dc.creator | Iwamoto, Akira | |
| dc.date | 2007-04-21 | |
| dc.date.accessioned | 2026-07-07T10:20:18Z | |
| dc.date.available | 2026-07-07T10:20:18Z | |
| dc.description | Based on the adiabatic picture for heavy-ion reactions, in which the neck formation in the one-body system is taken into account, we propose a two-step model for fusion cross sections at deep subbarrier energies. This model consists of the capture process in the two-body potential pocket, which is followed by the penetration of the adiabatic one-body potential to reach a compound state after the touching configuration. We describe the former process with the coupled-channels framework, while the latter with the WKB approximation by taking into account the coordinate dependent inertia mass. The effect of the one-body barrier is important at incident energies below the potential energy at the touching configuration. We show that this model well accounts for the steep fall-off phenomenon of fusion cross sections at deep subbarrier energies for the $^{64}$Ni+$^{64}$Ni and $^{58}$Ni+$^{58}$Ni reactions. | |
| dc.description | 4 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0704.2825 | |
| dc.identifier | http://arxiv.org/abs/0704.2825 | |
| dc.identifier | Phys.Rev.C75:057603,2007 | |
| dc.identifier | doi:10.1103/PhysRevC.75.057603 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/174802 | |
| dc.subject | Nuclear Theory | |
| dc.title | Existence of One-Body Barrier Revealed in Deep Sub-Barrier Fusion | |
| dc.type | text |