Testing inter-electronic interaction in lithium-like tin
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866915313259380736 |
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| author | Morgner, Jonathan Yerokhin, Vladimir A. Konig, Charlotte M. Heiße, Fabian Tu, Bingsheng Sailer, Tim Sikora, Bastian Harman, Zoltán López-Urrutia, Jose R. Crespo Keitel, Christoph H. Sturm, Sven Blaum, Klaus |
| author_facet | Morgner, Jonathan Yerokhin, Vladimir A. Konig, Charlotte M. Heiße, Fabian Tu, Bingsheng Sailer, Tim Sikora, Bastian Harman, Zoltán López-Urrutia, Jose R. Crespo Keitel, Christoph H. Sturm, Sven Blaum, Klaus |
| contents | Magnetic moments of bound-electron systems are a sensitive tool for testing fundamental interactions. $g$ factors of lithium-like ions have been rigorously studied in recent years, enabling insights into the relativistic inter-electronic effects. Here, we present the $g$-factor measurement of lithium-like tin, accurate to 0.5 parts per billion, as well as \textit{ab initio} theoretical calculations that include an advanced treatment of the inter-electronic interaction. We further improve the prediction by using the experimental result for the hydrogen-like tin $g$ factor, inferring from it the unknown higher-order QED effects. The observed agreement independently confirms the revised theory at a previously inaccessible high nuclear charge $Z$ of 50, where QED effects are significantly larger. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_24286 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Testing inter-electronic interaction in lithium-like tin Morgner, Jonathan Yerokhin, Vladimir A. Konig, Charlotte M. Heiße, Fabian Tu, Bingsheng Sailer, Tim Sikora, Bastian Harman, Zoltán López-Urrutia, Jose R. Crespo Keitel, Christoph H. Sturm, Sven Blaum, Klaus Atomic Physics Magnetic moments of bound-electron systems are a sensitive tool for testing fundamental interactions. $g$ factors of lithium-like ions have been rigorously studied in recent years, enabling insights into the relativistic inter-electronic effects. Here, we present the $g$-factor measurement of lithium-like tin, accurate to 0.5 parts per billion, as well as \textit{ab initio} theoretical calculations that include an advanced treatment of the inter-electronic interaction. We further improve the prediction by using the experimental result for the hydrogen-like tin $g$ factor, inferring from it the unknown higher-order QED effects. The observed agreement independently confirms the revised theory at a previously inaccessible high nuclear charge $Z$ of 50, where QED effects are significantly larger. |
| title | Testing inter-electronic interaction in lithium-like tin |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2505.24286 |