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Westig, M.P. [Author]; Engels, R. [Author]; Grigoryev, K. [Author]; Mikirtychyants, M. [Author]; Rathmann, F. [Author]; Paetz gen. Schieck, H. [Author]; Schug, G. [Author]; Vasilyev, A. [Author]; Ströher, H. [Author]

Hydrogen spectroscopy with a Lamb-shift polarimeter

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  • Media type: E-Article
  • Title: Hydrogen spectroscopy with a Lamb-shift polarimeter
  • Contributor: Westig, M.P. [Author]; Engels, R. [Author]; Grigoryev, K. [Author]; Mikirtychyants, M. [Author]; Rathmann, F. [Author]; Paetz gen. Schieck, H. [Author]; Schug, G. [Author]; Vasilyev, A. [Author]; Ströher, H. [Author]
  • imprint: Springer, 2010
  • Published in: The European physical journal / D 57, 27 - 32 (2010). doi:10.1140/epjd/e2010-00016-9
  • Language: English
  • DOI: https://doi.org/10.1140/epjd/e2010-00016-9
  • ISSN: 1434-6060
  • Keywords: dipole: transition ; dipole: magnetic ; photomultiplier ; beam: polarization ; p: polarization ; Lamb shift ; dipole: electric ; magnetic field: external field ; Juelich COSY PS ; hydrogen: atom ; ANKE ; beam: energy ; hyperfine structure ; antihydrogen ; atom: beam
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  • Description: 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-Julich, 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(2)S(1/2) and the 2(2)P(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.
  • Access State: Open Access