摘要
用扩散模型研究了裂变系统从鞍点到断点的时间演化，以及在此间的粒子发射与鞍点前粒子发射的比随着裂变系统质量的变化，解释了实验上发现的断点前粒子多重性随裂变碎片质量不对称性的变化趋势，结果表明上述两种变化趋势都可以归因于裂变演化路程长短的影响。
The elapsed time of system from saddle to scission and the ratio of particle emission from saddle to scission to presaddle emission as a function of mass of fissioning system were studied based on the diffusion model. A possible interpretation for the dependence of prescission particle emission on fission fragment mass asymmetry is given. The analysis shows that the above two relations can be ascribed to the fissioning path effect.
出处
《高能物理与核物理》
CSCD
北大核心
1998年第7期639-645,共7页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
上海市科学与技术发展基金
关键词
粒子多重性
裂变碎片
质量不对称性
裂变路径
particle multiplicity, fission fragment mass asymmetry fission path, fission diffusion model
