2014 Fiscal Year Final Research Report
Microscopic mechanism of fusion hindrance obserbed at extremely low incident energies in heavy-ion fusion reactions
| Project/Area Number |
25800145
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Research Collaborator |
MATSUYANAGI Kenichi
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | 核融合反応 / 量子トンネル / チャネル結合法 / RPA法 / 平均場理論 |
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| Outline of Final Research Achievements |
We investigate the microscopic mechanism for the steep falloffs of the fusion cross sections, compared to the standard coupled-channel calculations, observed at extremely low incident energies. In our previous study, we indicated that the steep falloffs of the fusion cross sections, called the fusion hindrance, is response for the smooth transition from the sudden to the adiabatic processes. To achieve it, we phenomenologically introduced the damping factor in the standard coupled-channel calculations. Thus, to investigate the microscopic origin of this damping factor, we extend the random-phase approximation method to the two-body systems and calculate quantum vibrations of the individual colliding nuclei, when two nuclei approach each other.
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| Free Research Field |
原子核理論物理学
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