来自非局域色散光学模型的半幻核${}^{90}$Zr的单粒子结构
Single-particle structure of the semi-magic nucleus ${}^{90}$Zr from a nonlocal dispersive optical model
AI总结：
研究半幻核${}^{90}$Zr，用非局域色散光学模型分析其中子和质子，拟合多种数据提取自能，处理配对的DOM扩展能很好描述相关截面，体现了开壳与闭壳质子系统差异。
AI中文摘要：
对半幻核$^{90}$Zr中的中子和质子进行了非局域色散光学模型（DOM）分析。通过拟合弹性散射角分布、总截面和反应截面、单粒子能量、中子和质子数、电荷分布以及结合能，提取费米能上下的中子和质子自能。当用处理配对的DOM扩展来描述开壳质子系统时，得到的光谱因子和其他DOM成分能很好地描述$(e,e'p)$截面。开壳质子系统和闭壳质子系统之间的明显差异通过轨道从大多满到大多空的平滑过渡得以体现。
英文摘要：
A nonlocal dispersive-optical-model (DOM) analysis has been carried out for neutrons and protons in the semi-magic nucleus $^{90}$Zr. Elastic-scattering angular distributions, total and reaction cross sections, single-particle energies, the neutron and proton numbers, the charge distribution, and the binding energy have been fitted to extract the neutron and proton self-energies both above and below the Fermi energy. The resulting spectroscopic factors and other DOM ingredients yield a good description of the $(e,e'p)$ cross sections when the open-shell proton system is described with an extension of the DOM that treats pairing. The distinct difference between the open-shell proton system and a closed one is illustrated by the smooth transition from mostly full to mostly empty orbits.
