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arXiv 2108.00239physics.atom-phhep-ph
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King图的非线性及其对核半径的依赖性

Nonlinearities of King's plot and their dependence on nuclear radii

Robert A. Müller, Vladimir A. Yerokhin, Anton N. Artemyev, Andrey Surzhykov

摘要:

原子谱线同位素位移的研究提供了对核性质的深入了解。偏离两个原子跃迁的同位素位移对核参数的线性依赖关系,导致所谓的King图的非线性,被积极地研究作为寻找新物理的可能途径。在目前的工作中,我们计算的国王图非线性起源于标准模型原子理论。的计算进行分析,适用于任意原子的模型的例子,和数值,单电子离子。结果表明,标准模型预测的King plot非线性对核电荷半径的实验误差非常敏感。这种效应使识别新物理学中可能存在的王图非线性变得非常复杂。

英文摘要:

Investigations of isotope shifts of atomic spectral lines provide insights into nuclear properties. Deviations from the linear dependence of the isotope shifts of two atomic transitions on nuclear parameters, leading to a nonlinearity of the so-called King plot, are actively studied as a possible way of searching for the new physics. In the present work we calculate the King-plot nonlinearities originating from the Standard-Model atomic theory. The calculation is performed both analytically, for a model example applicable for an arbitrary atom, and numerically, for one-electron ions. It is demonstrated that the Standard-Model predictions of the King-plot nonlinearities are hypersensitive to experimental errors of nuclear charge radii. This effect significantly complicates identifications of possible King-plot nonlinearities originating from the new physics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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