A PHENOMENOLOGICAL DYNAMIC-MODEL FOR NUCLEAR MULTIFRAGMENTATION

被引：25

作者：

LERAY, S ^{[1
]}

NGO, C ^{[1
]}

SPINA, ME ^{[1
]}

REMAUD, B ^{[1
]}

SEBILLE, F ^{[1
]}

机构：

[1] UNIV NANTES,UA 37,F-44072 NANTES,FRANCE

来源：

NUCLEAR PHYSICS A | 1990年 / 511卷 / 02期

关键词：

D O I：

10.1016/0375-9474(90)90167-K

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We propose a phenomenological dynamical description of multifragmentation in heavy-ion reactions. In this model, multifragmentation arises because of the growth of the fluctuations of the mean field during the expansion phase. In order to evaluate these fluctuations we have used a simple geometrical model based on a percolation approach: the restructured aggregation model. The dynamical evolution of the system is followed owing to a Landau-Vlasov equation up to the point of multifragmentation. Experimental data for two completely different systems are rather well reproduced by our model. © 1990.

引用

页码：414 / 428

页数：15

共 31 条

[1] NUMERICAL-SIMULATION OF MEDIUM ENERGY HEAVY-ION REACTIONS [J].