摘要
The emission of clusters in the nuclear dissociation was investigated within the framework of isospin dependent lattice gas model.As observed in the recent experimental data,it was found that the emission probability of individual cluster is Poissonian and thermal scaling was observed in the linear Arrhenius plots made from the average multiplicity of each cluster as a function of the inverse temperature.The‘emission barriers’were extracted from the slopes of the Arrhenius plots and mainly depends on the surface energy of the cluster.
基金
Supported in part by the National Natural Science Foundation of China for Distinguished Young Scholars under Grant No.19725521
the National Natural Science Foundation of China under Grant No.19705012
the Major State Basic Research Development Program of China under Contract No.G200077400。
