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  g Factor of Lithiumlike Silicon: New Challenge to Bound-State QED

Glazov, D. A., Köhler-Langes, F., Volotka, A. V., Blaum, K., Heiße, F., Plunien, G., et al. (2019). g Factor of Lithiumlike Silicon: New Challenge to Bound-State QED. Physical Review Letters, 123(17): 173001. doi:10.1103/PhysRevLett.123.173001.

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1903.11609.pdf (Preprint), 276KB
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https://doi.org/10.1103/PhysRevLett.123.173001 (Publisher version)
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 Creators:
Glazov, D. A., Author
Köhler-Langes, F.1, Author           
Volotka, A. V., Author
Blaum, K.1, Author           
Heiße, F.1, Author           
Plunien, G., Author
Quint, W., Author
Rau, S.1, Author           
Shabaev, V. M., Author
Sturm, S.1, Author           
Werth, G., Author
Affiliations:
1Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              

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Free keywords: Physics, Atomic Physics, physics.atom-ph
 MPINP: Präzisionsexperimente - Abteilung Blaum
 Abstract:
The recently established agreement between experiment and theory for the $g$
factors of lithiumlike silicon and calcium ions manifests the most stringent
test of the many-electron bound-state quantum electrodynamics (QED) effects in
the presence of a magnetic field. In this Letter, we present a significant
simultaneous improvement of both theoretical $g_\text{th} =
2.000\,889\,894\,4\,(34)$ and experimental $g_\text{exp} =
2.000\,889\,888\,45\,(14)$ values of the $g$ factor of lithiumlike silicon
$^{28}$Si$^{11+}$. The theoretical precision now is limited by the
many-electron two-loop contributions of the bound-state QED. The experimental
value is accurate enough to test these contributions on a few percent level.

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 Dates: 2019-10-25
 Publication Status: Published online
 Pages: 5 pages, 1 figure
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 Table of Contents: -
 Rev. Type: Peer
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 123 (17) Sequence Number: 173001 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1