论文标题
li锂和钙的G因素：解决理论与实验之间的分歧
g Factor of Lithiumlike Silicon and Calcium: Resolving the Disagreement between Theory and Experiment
论文作者
论文摘要
边界电子G因素是用于测试标准模型和搜索新物理学的严格工具。关于锂硅的G系数与最近两个理论值的G系数之间的比较表明，$1.7σ$的差异[D. D. D. A. Glazov $ \ textit {et al} $。，物理。莱特牧师。 $ \ textbf {123} $，173001（2019）]和$5.2σ$ [V。 A. yerokhin $ \ textit {et al} $。，物理。 Rev. a $ \ textbf {102} $，022815（2020）]。为了确定这种分歧的原因，我们完成了相互作用和多电子Q校正的大规模高精度计算。计算是在QED的扩展毛茸茸图片中执行的，并且仔细分析了最终值对结合电势选择的依赖性。结果，我们显着改善了锂样硅的G因子的理论和实验之间的一致性。我们还报告了锂般钙迄今为止最准确的理论预测，该预测与实验值完全吻合。
The bound-electron g factor is a stringent tool for tests of the Standard Model and the search for new physics. The comparison between an experiment on the g factor of lithiumlike silicon and the two recent theoretical values revealed the discrepancies of $1.7σ$ [D. A. Glazov $\textit{et al}$., Phys. Rev. Lett. $\textbf{123}$, 173001 (2019)] and $5.2σ$ [V. A. Yerokhin $\textit{et al}$., Phys. Rev. A $\textbf{102}$, 022815 (2020)]. To identify the reason for this disagreement, we accomplish large-scale high-precision computation of the interelectronic-interaction and many-electron QED corrections. The calculations are performed within the extended Furry picture of QED, and the dependence of the final values on the choice of the binding potential is carefully analyzed. As a result, we significantly improve the agreement between the theory and experiment for the g factor of lithiumlike silicon. We also report the most accurate theoretical prediction to date for lithiumlike calcium, which perfectly agrees with the experimental value.
