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arXiv 1506.04055nucl-th
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用广义Woods-Saxon加自旋轨道势研究$^{207,209}Pb$中壳模型中子态

A Study of Shell Model Neutron States in $^{207,209}Pb$ Using the Generalized Woods-Saxon plus Spin-Orbit Potential

J. A. Liendo, E. Castro, R. Gómez, D. D. Caussyn

摘要:

通过求解薛定谔方程,得到了N = 126 ~ 184和N = 82 ~ 126中子壳层的单粒子和单空穴中子态的实验结合能,其中薛定谔方程具有两个分量:广义Woods-Saxon(GWS)势和自旋轨道(SO)耦合项. GWS势包含了传统的WS势加上一个SU项,SU项的强度在核表面达到最大。我们的结果表明,存在一个明确的SU势的强度和轨道角动量量子数$\ell$的状态之间的关系。这种依赖关系已被用来合理的预测位于内部和外部的中子壳层调查的状态的激发能质心。与以前的调查报告的结果进行了比较。

英文摘要:

The experimental binding energies of single-particle and single-hole neutron states belonging to neutron shells that extend from N = 126 to 184 and 82 to 126 respectively, have been reproduced by solving the Schrödinger equation with a potential that has two components: the generalized Woods-Saxon (GWS) potential and the spin-orbit (SO) coupling term. The GWS potential contains the traditional WS potential plus a term (SU) whose intensity reaches a maximum in the nuclear surface. Our results indicate the existence of a explicit relationship between the strength of the SU potential and the orbital angular momentum quantum number $\ell$ of the state. This dependence has been used to make reasonable predictions for the excitation energy centroids of states located inside and outside the neutron shells investigated. Comparisons are made with results reported in previous investigations.

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