锌中的全光学微分半径
All-optical Differential Radii in Zinc
AI总结：
该研究通过高精度计算锌离子同位素位移因子并结合全局拟合，提取了不依赖核模型的锌同位素微分半径，发现与μ子X射线结果存在偏差，表明光学方法在核半径确定上更可靠。
摘要：
我们对涉及Zn II中D1和D2谱线的态的同位素位移（IS）因子进行了高精度计算。结合对现有光学IS数据的全局拟合，我们提取了不依赖核模型的、精确的锌同位素长链微分半径。这些半径与从μ子X射线测量推断的半径进行了比较。我们发现了一些偏差，并将其归因于锌核的形变性质，这给从μ子原子提取半径引入了核模型依赖性。我们得出结论：在多体原子IS因子计算已成熟的情况下，光学确定的微分半径比从μ子X射线测量提取的半径更可靠，这为改进核素图中核半径的确定打开了大门。
英文摘要：
We conduct high-accuracy calculations of isotope shift (IS) factors of the states involving the $D_1$ and $D_2$ lines in Zn II. Together with a global fit to the available optical IS data, we extract nuclear-model-independent, precise differential radii for a long chain of Zn isotopes. These radii are compared with the ones inferred from muonic X-ray measurements. Some deviations are found, which we ascribe to the deformed nature of Zn nuclei that introduces nuclear-model dependency into radii extractions from muonic atoms. We arrive at the conclusion that in cases where the many-body atomic calculations of IS factors are well-established, optical determinations of differential radii are more reliable than those extracted from the muonic X-ray measurements, opening the door to improved determination of nuclear radii across the nuclear chart.
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