中高能重离子碰撞中的集体流性质

The Properties of Nuclear Collective Flow in the Intermediate and High Energy Heavy-ion Collisions

本文研究了在静态时不同势场下,标示核物质性质的核物质内部压强和束缚能对核物质密度的依赖关系。在同时考虑势场的动量相关和介质效应的情况下,通过Buu动力学计算,系统地研究了核物质流对碰撞参数和入射能量的依赖关系。通过对不同状态下的计算结果与实验值的比较,加深了对核物质状态方程的了解。

In this paper the static characteristic of the nuclear matter characterized oy the interior pressure and the binding energy as a function of density is studied with different interactions. By taking into account both the momentum dependence potential and the nuclear medium effect, the dependence of the nuclear collective flow on the impact parameters and the bombarding energies is investigated systematically with BUU dynamical caculations. The nuclear quation of state is better understood by comparing the caculation results with the experiments.