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arXiv 1802.08110nucl-th
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由裸核子-核子相互作用导出狄拉克海的自旋对称性

Spin symmetry in the Dirac sea derived from the bare nucleon-nucleon interaction

Shihang Shen, Haozhao Liang, Jie Meng, Peter Ring, Shuangquan Zhang

摘要:

本文用相对论Brueckner-Hartree-Fock理论研究了Dirac海中的自旋对称性。以核$^{16}$ O为例,通过理论计算与实验数据的比较,详细研究了狄拉克海中单粒子势的定义。结果表明,如果把狄拉克海中的单粒子态作为占据态处理,则得到的基态性质与实验数据更符合。此外,在这种情况下,在狄拉克海的自旋对称性是更好地保存,这是更符合使用唯象相对论密度泛函的结果。

英文摘要:

The spin symmetry in the Dirac sea has been investigated with relativistic Brueckner-Hartree-Fock theory using the bare nucleon-nucleon interaction. Taking the nucleus $^{16}$O as an example and comparing the theoretical results with the data, the definition of the single-particle potential in the Dirac sea is studied in detail. It is found that if the single-particle states in the Dirac sea are treated as occupied states, the ground state properties are in better agreement with experimental data. Moreover, in this case, the spin symmetry in the Dirac sea is better conserved and it is more consistent with the findings using phenomenological relativistic density functionals.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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