发表机构
The Australian National University（澳大利亚国立大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文系统比较了SQMC与SLy4d能量密度泛函预测的核基态性质，发现SQMC能合理描述结合能、半径和形变，并特别关注了自旋-轨道相互作用的同位旋矢量依赖性对r过程相关中子富集核的影响。
AI 中文摘要
我们提出了利用Skyrme-夸克-介子耦合（SQMC）能量密度泛函对核基态性质进行的系统性研究，并将其结果与SLy4d Skyrme参数化的结果进行了比较。SQMC泛函是使用夸克-介子耦合（QMC）模型构建的，该模型包含了核子的内部夸克结构，并导致自由参数数量显著减少。我们研究了广泛原子核的结合能、双核子分离能、电荷半径和四极形变。特别关注了在QMC模型内推导的自旋-轨道相互作用的同位旋矢量依赖性，及其对与r过程相关的中子富集核结合能的影响。我们发现，与SLy4d相比，SQMC泛函对核基态性质提供了合理的描述。
英文摘要
We present a systematic study of nuclear ground-state properties obtained with the Skyrme quark-meson coupling (SQMC) energy density functional and compare them with results from the SLy4d Skyrme parameterisation. The SQMC functional is constructed using the quark-meson coupling (QMC) model, which incorporates the internal quark structure of the nucleon and results in a significant reduction in the number of free parameters. We investigate binding energies, two-nucleon separation energies, charge radii, and quadrupole deformations across a broad range of nuclei. Particular attention is devoted to the isovector dependence of the spin-orbit interaction derived within the QMC model, and its impact on the binding energies of neutron-rich nuclei relevant to the r-process. We find that the SQMC functional provides a reasonable description of nuclear ground-state properties in comparison with SLy4d.
Comments17 pages, 14 figures. Accepted for publication in Eur. Phys. J. A
