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g-factor measurement of hydrogenlike 28Si13+ as a challenge to QED calculations

Physical Review A. Bd. 87. H. 3. American Physical Society (APS) 2013 S. 1 - 5

Erscheinungsjahr: 2013

ISBN/ISSN: 0556-2791

Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)

Sprache: Englisch

Doi/URN: 10.1103/physreva.87.030501

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Inhaltszusammenfassung


Using a phase-detection method to determine the cyclotron frequency of a single trapped ion in a Penning trap allowed us to perform a measurement of the g factor of the bound electron in hydrogenlike 28Si13+ with a statistical uncertainty of 4 × 10^−11. Furthermore, we reevaluated the image-charge shift as the main source of uncertainty. Our result challenges bound-state quantum-electrodynamical calculations by probing two-loop contributions of order (Zα)^6 and paves the way towards a mor...Using a phase-detection method to determine the cyclotron frequency of a single trapped ion in a Penning trap allowed us to perform a measurement of the g factor of the bound electron in hydrogenlike 28Si13+ with a statistical uncertainty of 4 × 10^−11. Furthermore, we reevaluated the image-charge shift as the main source of uncertainty. Our result challenges bound-state quantum-electrodynamical calculations by probing two-loop contributions of order (Zα)^6 and paves the way towards a more precise determination of fundamental constants such as the electron mass.» weiterlesen» einklappen

  • phase-detection method
  • cyclotron frequency

Autoren


Sturm, Sven (Autor)
Wagner, Anke (Autor)
Quint, Wolfgang (Autor)
Werth, Günther (Autor)
Blaum, Klaus (Autor)

Klassifikation


DFG Fachgebiet:
Teilchen, Kerne und Felder

DDC Sachgruppe:
Naturwissenschaften

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