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  Fifth-force search with the bound-electron g factor

Debierre, V., Keitel, C. H., & Harman, Z. (2020). Fifth-force search with the bound-electron g factor. Physics Letters B, 807: 135527. doi:10.1016/j.physletb.2020.135527.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-A1D3-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-A1D4-4
Genre: Journal Article

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1901.06959.pdf (Preprint), 627KB
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 Creators:
Debierre, V.1, Author              
Keitel, C. H.1, Author              
Harman, Z.1, Author              
Affiliations:
1Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society, ou_904546              

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Free keywords: Physics, Atomic Physics, physics.atom-ph
 MPINP: Research group Z. Harman – Division C. H. Keitel
 Abstract: The use of high-precision measurements of the $g$ factor of few-electron ions and its isotope shifts is put forward as a probe for physics beyond the Standard Model. The contribution of a hypothetical fifth fundamental force to the $g$ factor is calculated for the ground state of H-like, Li-like and B-like ions, and employed to derive bounds on the parameters of that force. The weighted difference and especially the isotope shift of $g$ factors are used in order to increase the experimental sensitivity to the new physics contribution. It is found that, combining measurements from four different isotopes of H-like, Li-like and B-like calcium ions at currently accessible accuracy levels, experimental results compatible with King planarity would constrain the new physics coupling constant more than one order of magnitude further than the best current atomic data.

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 Dates: 2020-06-01
 Publication Status: Published online
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 Rev. Type: -
 Identifiers: arXiv: 1901.06959
URI: http://arxiv.org/abs/1901.06959
DOI: 10.1016/j.physletb.2020.135527
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Title: Physics Letters B
Source Genre: Journal
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Publ. Info: North-Holland
Pages: - Volume / Issue: 807 Sequence Number: 135527 Start / End Page: - Identifier: ISSN: 0370-2693
CoNE: https://pure.mpg.de/cone/journals/resource/954925524777