<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>g</mml:mi></mml:math> Factor of Boronlike Tin

In the Alphatrap experiment, the g factor of boronlike ^{118}Sn^{45+} has been measured with a 0.5 ppb uncertainty. This is the first high-precision measurement of the g factor of a heavy boronlike ion. The measured value of 0.6 447 038 265(4) is consistent with the presented ab initio state-of-the-art theory calculations, which predict a value of 0.64 470 29(8). So far, the only boronlike ion of which the g factor was measured with high precision has been ^{40}Ar^{13+}. The measurement presented here therefore tests quantum electrodynamics as well as many-electron interactions at much higher Z. Furthermore, we discuss the potential for an independent determination of the fine-structure constant α, which can be achieved with a specific difference of g factors, combining the presented results with the recent electron g-factor measurement of hydrogenlike tin.

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Publication Details

Journal
Physical Review Letters
Published
2025-03-24
DOI
https://doi.org/10.1103/physrevlett.134.123201
Citations
4
Primary Topic
Atomic and Molecular Physics
Type
article
Field-Weighted Citation Impact
4.99

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article

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>g</mml:mi></mml:math> Factor of Boronlike Tin

Jonathan Morgner, S. Sturm, F. Heiße, B. Sikora et al.
4 citations
Physical Review Letters
Atomic and Molecular Physics
4.99
article

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>g</mml:mi></mml:math> Factor of Boronlike Tin

Jonathan Morgner, S. Sturm, F. Heiße, B. Sikora, Tim Sailer, V. A. Yerokhin, C. M. König, K. Blaum, B. Tu, Natalia S. Oreshkina, Christoph H. Keitel, Z. Harman, M. Moretti
article en
4 citations

Abstract

In the Alphatrap experiment, the g factor of boronlike ^{118}Sn^{45+} has been measured with a 0.5 ppb uncertainty. This is the first high-precision measurement of the g factor of a heavy boronlike ion. The measured value of 0.6 447 038 265(4) is consistent with the presented ab initio state-of-the-art theory calculations, which predict a value of 0.64 470 29(8). So far, the only boronlike ion of which the g factor was measured with high precision has been ^{40}Ar^{13+}. The measurement presented here therefore tests quantum electrodynamics as well as many-electron interactions at much higher Z. Furthermore, we discuss the potential for an independent determination of the fine-structure constant α, which can be achieved with a specific difference of g factors, combining the presented results with the recent electron g-factor measurement of hydrogenlike tin.

Physical Review LettersVol. 134(12)
Fudan University (CN), Institute of Modern Physics (CN), Max Planck Institute for Nuclear Physics (DE)
Deutsche Forschungsgemeinschaft, Max-Planck-Gesellschaft, Horizon 2020 Framework Programme, RIKEN, H2020 European Research Council
Openalex Percentile: Top 5%
Atomic and Molecular Physics
4.99
DOIOpen Access PDFOpenAlex
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