期刊
PHYSICAL REVIEW C
卷 82, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.82.044614
关键词
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资金
- Natural Science Foundation of China [10947118, 10775061, 10875152, 10805051, 10825522, 10975064]
- Chinese Academy of Sciences [KJCX2-SW-N17, KJCX3-SW-N02]
- Major state basic research development program [2007CB815000]
- DFG of Germany
Within the framework of a dinuclear system model, a new master equation is constructed and solved, which includes the relative distance of nuclei as a new dynamical variable in addition to the mass asymmetry variable so that the nucleon transfer, which leads to fusion and the evolution of the relative distance, which leads to quasifission (QF) are treated simultaneously in a consistent way. The QF mass yields and evaporation residual cross sections to produce superheavy nuclei are systematically investigated under this framework. The results fit the experimental data well. It is shown that the Kramers formula gives results of QF, which agree with those by our diffusion treatment, only if the QF barrier is high enough. Otherwise some large discrepancies occur.
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