热核的衰变动力学研究  

Study on the Decay Dynamics of Hot Nuclei'

作　　者：曾祥华[1] 张丰收[1] 罗亦孝[1] 

机构地区：[1]中国科学院近代物理所,兰州730000

出　　处：《高能物理与核物理》2000年第6期535-540,共6页High Energy Physics and Nuclear Physics

基　　金：中国科学院科学基金资助

摘　　要：在Vlasov框架下讨论了高温、高压缩核物质的动力学演化过程 .通过研究得出 ,初始过程对碎裂的影响很大 ,这里密度的影响比热激发能的影响更大 .在相同的初始条件下 ,不可压缩系数对碎裂过程影响很大 。With in the frameworu of the three-dimensional Vlasov equation,the dynamical evolution of highly compressed nuclei with high thermal excitation energy has been discussed. The distributions of particles in the space are uniform, while in the momentum space are Woods-Saxon distribution. The effects of initial conditions, temperature parameter and density, on the hot decay are great. The effect of the density on the hot decay is more important than the temperature parameter. For the same initial condition,the hot nuclei is more likely to decay in the hard potential than in the soft potential.

关 键 词：衰变动力学 气泡核 热核 Vlasov方程 

分 类 号：O571.3[理学—粒子物理与原子核物理]