Neutron Skin Effects in Mirror Energy Differences: The Case of ^{23}Mg-^{23}Na.
Neutron Skin Effects in Mirror Energy Differences: The Case of ^{23}Mg-^{23}Na.
复制标题
镜子能量差异中的中子集肤效应：^{23}Mg-^{23}Na 的情况。
DOI：
10.1103/physrevlett.121.032502
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发表时间：
2018
影响因子：
8.6
通讯作者：
Boso A
中科院分区：
文献类型：
--
作者：
Boso A
沿旋转辐射带测量了镜核中模拟态之间的能差。这使我们能够搜索由同位旋对称破缺相互作用（ISB）和/或形状变化引起的影响。数据在壳层模型框架中解释，采用成功应用于壳层核的方法。结果表明，需要引入与shell中使用的相同类型的ISB相互作用示意图来再现数据。另一种新颖的描述，在这里第一次应用，依赖于使用一个有效的相互作用，从一个现实的电荷依赖的手性核子核子势。这一分析提供了两个重要的结果：(i)镜像能量差异提供了对核表皮的直接洞察；（ii）沿旋转带的趋肤变化与“晕”轨道中中子和质子占据的差异密切相关。
Energy differences between analogue states in themirror nuclei have been measured along the rotational yrast bands. This allows us to search for effects arising from isospin-symmetry-breaking interactions (ISB) and/or shape changes. Data are interpreted in the shell model framework following the method successfully applied to nuclei in theshell. It is shown that the introduction of a schematic ISB interaction of the same type of that used in theshell is needed to reproduce the data. An alternative novel description, applied here for the first time, relies on the use of an effective interaction deduced from a realistic charge-dependent chiral nucleon-nucleon potential. This analysis provides two important results: (i) The mirror energy differences give direct insight into the nuclear skin; (ii) the skin changes along the rotational bands are strongly correlated with the difference between the neutron and proton occupations of the“halo” orbit.