氘核的微观光学势

The Deuteron Microscopic Optical Potential

本文采用双粒子格林函数方法,在忽略双粒子间直接相互作用时,得到双粒子格林函数的一级、二级质量算符为各个单粒子质量算符的和。采用核物质近似和Skyrme有效相互作用得到的核子微观光学势,用折叠公式计算了氘核的微观光学势。用所得到的光学势计算了氘核的弹性散射角分布和反应截面,与现有的一些实验数据进行了比较,发现反应截面能较好地符合实验,而弹性散射角分布符合实验较差。为了改进理论,又研究了双粒子间极化图对氘核微观光学势虚部的贡献。

In this paper, the two particle Green's function is introduced. When the direct interaction between two nucleons is neglected, the first and second order mass operators of two particles are the sum of those for each particle. The nucleon microscopic optical potential is calculated by applying nuclear matter approximation and effective Skyrme interaction. Then the deuteron microscopic optical potential (DMOP) is calculated by using fold formula. For improvement of the theory, the two particle polarization diagram contribution to th e imaginary part of the deuteron microscopic optical potential is studied.