核赝自旋的动力学性质及其同位旋不对称性
核理论
2017-08-23 v1
摘要
通过求解具有Woods-Saxon标量和矢量径向势的Dirac方程,研究了原子核中的赝自旋对称性。我们将赝自旋相互作用与Dirac旋量下分量对应的类Schroedinger方程中的赝自旋-轨道项联系起来。我们表明,该项对赝自旋伙伴态的能量劈裂有很大贡献,因此近赝自旋简并性源于该方程中不同项之间的显著抵消。这是该对称性在原子核中动力学特征的体现。我们通过引入矢量-同位旋矢量势V_rho和库仑势,分析了核同位素链中赝自旋对称性的同位旋依赖性,并得出结论:V_rho对观察到的赝自旋同位旋不对称性起主要贡献。
引用
@article{arxiv.nucl-th/0207068,
title = {Dynamical nature of the nuclear pseudospin and its isospin asymmetry},
author = {R. Lisboa and M. Malheiro and A. Delfino and P. Alberto and M. Fiolhais and M. Chiapparini},
journal= {arXiv preprint arXiv:nucl-th/0207068},
year = {2017}
}
备注
4 pages, 2 figures, uses World Scientific style file. Contribution presented at the VIII International Workshop on Hadron Physics, Bento Goncalves, RS, Brazil, April 14-19, 2002. To be published by World Scientific in the proceedings of the "International Workshop on Hadron Physics 2002"