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arXiv · 1104.4421

Hydrogen Spectroscopy with a Lamb-shift Polarimeter - An Alternative Approach Towards Anti-Hydrogen Spectroscopy Experiments

M. P. Westig·R. Engels·K. Grigoryev·M. Mikirtytchiants·F. Rathmann·H. Paetz gen. Schieck·G. Schug·A. Vasilyev·H. Ströher
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Abstract

A Lamb-shift polarimeter, which has been built for a fast determination of the polarization of protons and deuterons of an atomic-beam source and which is frequently used in the ANKE experiment at COSY-Jülich, is shown to be an excellent device for atomic-spectroscopy measurements of metastable hydrogen isotopes. It is demonstrated that magnetic and electric dipole transitions in hydrogen can be measured as a function of the external magnetic field, giving access to the full Breit-Rabi diagram for the $2^2S_{1/2}$ and the $2^2P_{1/2}$ states. This will allow the study of hyperfine structure, $g$ factors and the classical Lamb shift. Although the data are not yet competitive with state-of-the-art measurements, the potential of the method is enormous, including a possible application to anti-hydrogen spectroscopy.

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M. P. Westig, R. Engels, K. Grigoryev, M. Mikirtytchiants, F. Rathmann, H. Paetz gen. Schieck, G. Schug, A. Vasilyev, H. Ströher. 2011-04-22. Hydrogen Spectroscopy with a Lamb-shift Polarimeter - An Alternative Approach Towards Anti-Hydrogen Spectroscopy Experiments. https://doi.org/10.1140/epjd%2Fe2010-00016-9

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