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A: Fachverband Atomphysik
A 7: Highly charged ions and their applications
A 7.2: Talk
Monday, February 29, 2016, 15:00–15:15, f107
The g-factor of light hydrogen- and lithiumlike ions for an improved extraction of the fine-structure constant — •Zoltán Harman1, Vladimir A. Yerokhin1,2, Ekaterina Berseneva1,3, Ilya I. Tupitsyn3, and Christoph H. Keitel1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany — 2Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia — 3St. Petersburg State University, 198504 St. Petersburg, Russia
A specific weighted difference of the g-factors of the H- and Li-like ions of the same element is studied and optimized in order to maximize the cancelation of finite nuclear size effects between the two charge states [1]. It is shown that this weighted difference, or its combination for two different elements, can be used to extract the fine-structure constant from future bound-electron g-factor experiments with an accuracy improvement compared to its present value.
[1] V. A. Yerokhin, E. Berseneva, Z. Harman, I. I. Tupitsyn, C. H. Keitel, submitted (2015); arXiv:1509.08260