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Compilation of recent nuclear ground state charge radius measurements and tests for models
Atomic Data and Nuclear Data Tables ( IF 1.8 ) Pub Date : 2021-05-07 , DOI: 10.1016/j.adt.2021.101440
Tao Li , Yani Luo , Ning Wang

The root-mean-square (rms) charge radii of 236 nuclides measured by laser spectroscopy experiment are compiled, and the uncertainties are calculated. From the rms charge radii of Mg isotope chain, the new magic number N=14 can be observed, and the traditional magic number N=20 disappears in the K isotope chain. A good linear relationship between the difference of the mirror nuclear charge radii and the isospin asymmetry can be clearly observed with a Pearson’s linear correlation coefficient of 0.96. The accuracies and predictive powers of the WS* and HFB25 models are tested with these new data. The rms deviation with the WS* model is only 0.0176 fm for the 129 new data, which is much better than that of HFB25 model. The influence of deformation effect on nuclear charge radius prediction is studied systematically.



中文翻译:

最近核基态电荷半径测量和模型测试的汇编

编制了激光光谱实验测得的236种核素的均方根(rms)电荷半径,并计算了不确定度。从 Mg 同位素链的 rms 电荷半径,新的幻数N=14 可以观察到,而传统的幻数 N=20消失在 K 同位素链中。可以清楚地观察到镜核电荷半径的差异与同位旋不对称之间的良好线性关系,皮尔逊线性相关系数为 0.96。WS* 和 HFB25 模型的准确性和预测能力使用这些新数据进行了测试。对于129个新数据,WS*模型的均方根偏差仅为0.0176 fm,远优于HFB25模型。系统研究了形变效应对核电荷半径预测的影响。

更新日期:2021-06-05
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