Isotope shift factors for the Cd+ 5s 2S1/2 → 5p 2P3/2 transition and determination of Cd nuclear charge radii
Isotope shift factors for the Cd+ 5s 2S1/2 → 5p 2P3/2 transition and determination of Cd nuclear charge radii
复制标题
Cd 5s 2S1/2 → 5p 2P3/2 跃迁的同位素位移因子和 Cd 核电荷半径的测定
DOI：
10.1103/physrevresearch.4.033049
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发表时间：
2022
影响因子：
4.2
通讯作者：
L. J. Wang
中科院分区：
文献类型：
--
作者：
J. Z. Han;C. Pan;K. Y. Zhang;X. F. Yang;S. Q. Zhang;J. C. Berengut;S. Goriely;H. Wang;Y. M. Yu;J. Meng;J. W. Zhang;L. J. Wang
The accuracy of atomic isotope shift factors limits the extraction of nuclear charge radii from isotope shift.measurements because determining these factors is experimentally and theoretically challenging. Here, the.isotope shift of the Cd+ 5s 2S1/2 → 5p 2P3/2 transition is measured precisely using laser-induced fluorescence.from a sympathetically cooled large Cd+ ion crystal. A King-plot analysis is performed based on the new.measurement to obtain accurate atomic field shift F and mass shift K factors that have been cross-checked by.state-of-the-art configuration interaction plus many-body perturbation theory. The nuclear charge radii (Rch) of.100–130Cd extracted using these F and K values demonstrate a near fivefold precision increase in the neutron-rich.region. This work proves that accurate extraction of Rch from isotope shifts is possible. New Rch values reveal.hidden discrepancies with previous density functional predictions in the neutron-rich region and pose strong.challenges to advancements in nuclear models.
