期刊
PHYSICAL REVIEW LETTERS
卷 103, 期 20, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.202701
关键词
-
资金
- Japanese Ministry of Education, Culture, Sports, Science and Technology [19740115]
- Grants-in-Aid for Scientific Research [19740115] Funding Source: KAKEN
We propose a novel extension of the standard coupled-channels framework for heavy-ion reactions in order to analyze fusion reactions at deep-sub-barrier incident energies. This extension simulates a smooth transition between the two-body and the adiabatic one-body states. To this end, we damp gradually the off-diagonal part of the coupling potential, for which the position of the onset of the damping varies for each eigenchannel. We show that this model accounts well for the steep falloff of the fusion cross sections for the (16)O+(208)Pb, (64)Ni+(64)Ni, and (58)Ni+(58)Ni reactions.
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