The measurement of the electronic g-factor in hydrogen-like ions -A promising tool for determining fundamental and nuclear constantsT. Beier1, H. Häffner2, N. Hermanspahn2, S. Djekic2, H.-J. Kluge1, W. Quint1, S. Stahl2, T. Valenzuela2, J. Verdú2 and G. Werth2
1 GSI, Atomic Physics, Planckstr. 1, 64291 Darmstadt, Germany
2 Institut für Physik, Universität Mainz, 55099 Mainz, Germany
(Received: 21 March 2002 / Published online: 31 October 2002)
We describe a double-Penning-trap experiment suitable for testing QED in strong fields by determining the electronic g-factor of a single hydrogen-like ion in its ground state. Our measurements on reach a relative accuracy of , where the largest uncertainty results from the mass of the electron. Together with equally precise theoretical predictions therefore, it is possible to evaluate a new value for the electron's mass. The possibilities to obtain other fundamental constants and nuclear parameters are lined out.
32.10.Fn - Fine and hyperfine structure.
12.20.-m - Quantum electrodynamics.
31.30.Jv - Relativistic and quantum electrodynamic effects in atoms and molecules.
06.20.Jr - Determination of fundamental constants.
© Società Italiana di Fisica, Springer-Verlag 2002