发表机构
Washington University; Reed College; Haverford College（华盛顿大学; 里德学院; 哈弗福德学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
通过色散光学模型分析${}^{54}$Fe、${}^{90}$Zr、${}^{40}$Ca、${}^{48}$Ca和${}^{208}$Pb的中子皮，发现中子皮随不对称性$(N-Z)/A$呈超线性增长，并与不对称He核的格林函数蒙特卡罗结果一致。
AI 中文摘要
对${}^{54}$Fe和${}^{90}$Zr的新色散光学模型分析，连同${}^{40}$Ca、${}^{48}$Ca的更新结果以及${}^{208}$Pb的早期结果，揭示了原子核中中子皮的行为。从${}^{40}$Ca的负皮开始，当这些核的中子皮作为不对称性$(N-Z)/A$的函数考虑时，出现了一个比线性增长稍强的趋势，并与不对称He核的格林函数蒙特卡罗结果相关联。这一总体趋势与预期一致，即靠近中子滴线的核应具有非常大的中子皮。因此，本分析提出了一个问题：哪些核提供了与中子星物理学最相关的联系。
英文摘要
New dispersive optical model analyses of ${}^{54}$Fe and ${}^{90}$Zr together with updated results for ${}^{40}$Ca, ${}^{48}$Ca, and the earlier result for ${}^{208}$Pb shed light on the behavior of neutron skins in nuclei. Starting with a negative skin for ${}^{40}$Ca, a trend increasing somewhat stronger than linear emerges when the neutron skin of these nuclei is considered as a function of asymmetry, $(N-Z)/A$, and linked to the Green's function Monte Carlo results for asymmetric He nuclei. This general trend is consistent with the expectation that nuclei near the neutron drip line are expected to have very large neutron skins. The present analysis therefore motivates the question of which nuclei provide the most relevant link to neutron star physics.
Comments6 pages, 3 figures. Change of formatting from a letter type to a regular article
