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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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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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Title: Physics Letters B
Source Genre: Journal
 Creator(s):
Affiliations:
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