期刊
PHYSICAL REVIEW C
卷 103, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.103.034605
关键词
-
资金
- National Natural Science Foundation of China [11705165, 11975209, 11975210]
The ratio of level density parameters in the fission channel and neutron-evaporation channel plays a crucial role in reproducing experimental data of fusion reactions. There is a good exponential relationship between this ratio and the fissility parameter.
The empirical coupled-channel model and the statistical model are used to analyze the measured evaporation-residue cross sections of 48 fusion reactions. The experimental data of these reactions are systematically well reproduced (within one order of magnitude). It is found that the ratio of a(f) (level density parameter in fission channel) to a(n) (level density parameter in neutron-evaporation channel) plays an important role in reproducing the data appropriately. Furthermore, a good exponential holds between the ratio a(f)/a(n) and the fissility parameter.
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