论文部分内容阅读
用Skyrme Hartree Fock模型研究了Ca同位素的纯中子物质的厚度和经典禁区内粒子数随同位旋的变化 .定义了零粒子半径和单粒子半径 ,并用这两种半径定义方法研究纯中子物质厚度后发现 :纯中子物质的厚度明显地受到壳结构的影响 ,零粒子半径和单粒子半径是探讨中子晕比较合适的物理量 .经典禁区内质子数和中子数的差别可以作为定义中子晕或中子皮的指标 .
The Skyrme Hartree Fock model was used to study the variation of the pure neutron species in Ca isotopes and the number of particles in the classical canonical region with the isospin.The zero-particle radius and single-particle radius were defined and the two neutron radius definitions It is found that the thickness of pure neutron material is obviously influenced by the shell structure, and the zero particle radius and single particle radius are more suitable physical quantities for exploring neutron halo. The difference between the number of protons and neutrons in the classical closed area can be defined as Halo or neutron skin index.