Pseudo-spin symmetry in density-dependent relativistic Hartree–Fock theory
Pseudo-spin symmetry in density-dependent relativistic Hartree–Fock theory
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DOI：
10.1016/j.physletb.2006.05.065
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发表时间：
2006-03
影响因子：
4.4
通讯作者：
W. Long;H. Sagawa;J. Meng;N. Giai
中科院分区：
文献类型：
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作者：
W. Long;H. Sagawa;J. Meng;N. Giai
以双魔核Sn132为代表，在密度相关相对论Hartree-Fock理论中研究伪自旋对称性（PSS）。研究发现，Fock 项对赝自旋轨道势（PSOP）有显着贡献，使其与赝离心势垒（PCB）相当。然而，由于交换势的非局域性，PSOP 中的这些 Fock 项被其他交换项抵消。伪自旋轨道分裂表明相对论 Hartree-Fock 理论中 Sn132 的伙伴态 (ν3s1/2,ν2d3/2) 的 PSS 得到了很好的保存。
The pseudo-spin symmetry (PSS) is investigated in the density-dependent relativistic Hartree–Fock theory by taking the doubly magic nucleus Sn132 as a representative. It is found that the Fock terms bring significant contributions to the pseudo-spin orbital potential (PSOP) and make it comparable to the pseudo-centrifugal barrier (PCB). However, these Fock terms in the PSOP are counteracted by other exchange terms due to the non-locality of the exchange potentials. The pseudo-spin orbital splitting indicates that the PSS is preserved well for the partner states (ν3s1/2,ν2d3/2) of Sn132 in the relativistic Hartree–Fock theory.