论文标题
核壳模型中的旋转术语
The Spin Orbit term in the Nuclear Shell Model
论文作者
论文摘要
研究了代表具有可变大小的核的准核系统，以研究从无限核物质到有限核的过渡中核均值场中自旋轨道项的发生。考虑到适合$ nn $散射数据的核子 - 核子（$ nn $）相互作用的模型（$ nn $）相互作用的模型，相对论性和非权威主义平均场计算。观察到自旋轨道项的强度与核系统半径之间的强度非常强。通过检查$ nn $相互作用的一次性验证模型中不同部分波和各种介体的贡献来分析自旋轨道术语的起源。讨论了相关效应的影响和核培养基中核子核子小部分的影响。
Quasi-nuclear systems, representing nuclei with variable size, are studied to investigate the occurrence of the spin-orbit term in the nuclear mean field in the transition from infinite nuclear matter to finite nuclei. Relativistic as well as non-relativistic mean field calculations based on models for the nucleon-nucleon ($NN$) interaction, which fit the $NN$ scattering data, are considered. A very strong correlation between the strength of the spin-orbit term and radius of the nuclear system is observed. The origin of the spin-orbit term is analyzed by inspecting the contributions of the different partial waves and various mesons in a One-Boson-Exchange model of the $NN$ interaction. The influence of correlation effects and the enhancement of the small component of Dirac spinors for nucleons in the nuclear medium is discussed.
