Based on the point-coupling density functional, the time-odd deformed relativistic Hartree-Bogoliubov theory in continuum (TODRHBc) is developed. The effects of nuclear magnetism on halo phenomenon are explored by taking the experimentally suggested deformed halo nucleus Ne as an example. For Ne, nuclear magnetism contributes 0.09 MeV to total binding energy, and the breaking of Kramers degeneracy results in a 0 – 0.2 MeV splitting in the canonical single particle spectra. The blocked neutron level has a dominant component of the wave and is marginally bound. However, if we ignore nuclear magnetism, the level becomes unbound. This shows a subtle mechanism that nuclear magnetism changes the single particle energies, causing a nucleus to become bound. Based on the TODRHBc results, a prolate one-neutron halo is formed around the near-spherical core in Ne. The nucleon current is mostly contributed by the halo rather than the core, except near the center of the nucleus. A layered feature in the neutron current distribution is observed and studied in detail.

中文翻译：

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变形晕核 31Ne 中的核磁性


基于点耦合密度泛函，提出了奇时变形相对论连续介质Hartree-Bogoliubov理论（TODRHBc）。以实验提出的变形晕核Ne为例，探讨了核磁性对晕现象的影响。对于氖，核磁对总结合能贡献 0.09 MeV，克莱默简并性的打破导致规范单粒子光谱中 0 – 0.2 MeV 分裂。阻挡中子能级是波的主要成分，并且受到边际约束。然而，如果我们忽略核磁，能级就变得不受限制。这显示了核磁性改变单粒子能量，导致原子核被束缚的微妙机制。根据 TODRHBc 结果，在 Ne 的近球形核心周围形成了长长的单中子晕。除了核中心附近之外，核子电流主要由晕而不是核心贡献。详细观察和研究了中子电流分布的分层特征。