单粒子势模型下价核子的密度分布

依据实验事实，利用单粒子势模型，计算了一些核态外层价核子的密度分布.计算给出了价核子在核外部分布的概率和贡献，以此作为晕核态的判断标准.通过研究均方根半径随结合能变化的规律，指出了晕核态存在的条件，尤其是质子晕核态存在的条件.这些对判断和寻找晕核态有现实的指导意义.关键词：单粒子势模型价核子密度分布中子晕核态质子晕核态

Density distributions of valence nucleons under single-particle potential model

Using the experimental results, we have calculated the density distributions of valence nucleons in terms of the single particle potential model. The outside probabilities and contributions of valence nucleons given by these calculations are considered as the criterion of halo states. By studying the variation of root mean square radius with the separation energy, conditions for the existence of halo states are pointed out, especially of the proton halo states. These have realistic meanings for judging and searching the halo states.