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AP-METHODS-08 Status of the g-factor experiment for highly charged calcium ∗

By J. Alonso, K. Blaum, S. Djekic, H. -j. Kluge, W. Quint, B. Schabinger, S. Stahl, J. Verdú, M. Vogel and G. Werth


The limb of the Standard Model which deals with the interaction between electrons and electromagnetic fields, quantum electrodynamics (QED), has been tested to an extremely high precision by means of different experiments. Perhaps the most outstanding agreement between theory and experiment is the result coming from the anomaly of the magnetic moment of the free electron [1], where the concordance was up to the 12th digit. Also impressive are the 9 digits of agreement between the calculations of the g-factors of the electron bound to hydrogen-like carbon and oxygen ions and their corresponding measurements performed by the collaboration between GSI and the University of Mainz [2, 3]. In this case, bound-state quantum electrodynamics (BS-QED) is the subject of the tests, which can in addition lead to a more precise determination of fundamenta

Year: 2010
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