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Nuclear deformation as a source of the nonlinearity of the King plot in theYb+ion
Physical Review A ( IF 2.9 ) Pub Date : 2021-03-03 , DOI: 10.1103/physreva.103.l030801
Saleh O. Allehabi , V. A. Dzuba , V. V. Flambaum , A. V. Afanasjev

We perform atomic relativistic many-body calculations of the field isotope shifts and calculations of corresponding nuclear parameters for all stable even-even isotopes of the Yb+ ion. We demonstrate that if we take nuclear parameters of the Yb isotopes from a range of the state of the art nuclear models, which all predict strong quadrupole nuclear deformation, and then calculate nonlinearity of the King plot caused by the difference in the deformation in different isotopes, the result is consistent with the nonlinearity observed in the experiment [I. Counts et al., Phys. Rev. Lett. 125, 123002 (2020)]. The changes of nuclear rms radius between isotopes extracted from experiment are consistent with those obtained in the nuclear calculations.

中文翻译:

核变形是Yb +离子中King图非线性的来源

我们对原子同位素的所有稳定偶数同位素进行原子相对论多体计算,并对场同位素位移进行计算,并计算出相应的核参数。 b+离子。我们证明,如果我们从一系列最先进的核模型中获取Yb同位素的核参数,这些参数都预测了强四极核变形,然后计算了由不同同位素的形变差异引起的King图的非线性,结果与实验中观察到的非线性一致[I. Counts等。物理 莱特牧师 125,123002(2020)]。从实验中提取的同位素之间的核均方根半径的变化与在核计算中获得的一致。
更新日期:2021-03-03
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