AI 中文总结
本研究利用高电荷离子的g因子测量与量子电动力学预测，对标量玻色子介导的电子相关耦合组合进行约束，为标量相互作用提供了宽质量范围的竞争约束。
AI 中文摘要
我们研究一种假设的标量玻色子（它介导电子之间以及电子与核子之间的相互作用）如何影响类锂高电荷离子的g因子。在这类离子中，强核库仑场会增强电子-电子相互作用，使其成为探测微妙新物理信号的理想系统。这类少电子系统具有极高精度的量子电动力学预测和实验数据，可用于开展灵敏探测，从而为玻色子的耦合强度设定界限。利用高电荷离子对短程相互作用的增强敏感性，我们结合类锂和类氢离子的g因子测量值、量子电动力学理论预测、自由电子磁矩以及同位素位移测量值，对标量质量函数下的电子-质子、电子-中子和电子-电子耦合组合进行同时约束。我们发现，高精度g因子光谱学可在较宽质量范围内为标量相互作用提供有竞争力的约束，尤其是能从束缚态QED可观测量中得出电子-电子相互作用的界限。
英文摘要
We investigate how a hypothetical scalar boson mediating an interaction between electrons as well as between electrons and nucleons would affect the g factor of lithium-like highly charged ions. In such ions, the strong nuclear Coulomb fields enhance electron-electron interactions, making them ideal systems for detecting subtle new physics signatures. Exceptionally accurate quantum electrodynamic predictions and experimental data in such few-electron systems allow for sensitive probes, thereby enabling bounds on the boson's coupling strength. Exploiting the enhanced sensitivity of highly charged ions to short-range interactions, we combine g-factor measurements and quantum electrodynamic theory predictions of lithium- and hydrogen-like ions with the free-electron magnetic moment and an isotope-shift measurement to constrain simultaneously the electron-proton, electron-neutron, and electron-electron coupling combinations as functions of the scalar mass. We find that precision g-factor spectroscopy provides competitive constraints on scalar interactions over a broad mass range and, in particular, yields bounds on electron-electron interactions from bound-state QED observables.
