摘要
实验证明，重离子熔合裂变与入射道的质量不对称有关，说明对于某些反应体系，熔合形成的复合体系，裂变时未忘记其形成的历史．在实验观察的基础上，我们提出了预平衡裂变模型，解释了重离子垒下熔合裂变碎片角分布各向异性异常．
It is verified experimentally that the heavy-ion-induced fusionfission reactions are entrance channel mass asymmetry dependent.This dependence means that in some cases,the fused composite systems havenot forgot the history of it's formation.Based on the experimental observations,we have put forward a preequilibrium fission model.In framework of this model,we have successfully explained the anomalous fragment anisotropies from fusion-fission at near-andsub-barrier energies.
出处
《高能物理与核物理》
CSCD
北大核心
1996年第2期107-112,共6页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
核工业基金
关键词
垒下熔合
预平衡裂变
重离子熔合
sub-barrier fusion,critical mass asymmetry,preequilibrium fission.
