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An atomic hydrogen beam to test ASACUSA’s apparatus for antihydrogen spectroscopy

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Abstract

The ASACUSA collaboration aims to measure the ground state hyperfine splitting (GS-HFS) of antihydrogen, the antimatter counterpart to atomic hydrogen. Comparisons of the corresponding transitions in those two systems will provide sensitive tests of the CPT symmetry, the combination of the three discrete symmetries charge conjugation, parity, and time reversal. For offline tests of the GS-HFS spectroscopy apparatus we constructed a source of cold polarised atomic hydrogen. In these proceedings we report the successful observation of the hyperfine structure transitions of atomic hydrogen with our apparatus in the earth’s magnetic field.

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Authors and Affiliations

  1. Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, 1090, Vienna, Austria

    M. Diermaier, P. Caradonna, B. Kolbinger, O. Massiczek, C. Sauerzopf, M. C. Simon, M. Wolf, J. Zmeskal & E. Widmann

  2. CERN, 1211, Geneva 23, Switzerland

    C. Malbrunot

Authors
  1. M. Diermaier
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  2. P. Caradonna
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  3. B. Kolbinger
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  4. C. Malbrunot
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  5. O. Massiczek
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  6. C. Sauerzopf
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  7. M. C. Simon
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  8. M. Wolf
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  9. J. Zmeskal
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  10. E. Widmann
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Corresponding author

Correspondence to M. Diermaier.

Additional information

Proceedings of the International Conference on Exotic Atoms and Related Topics (EXA 2014), Vienna, Austria, 15-19 September 2014

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Diermaier, M., Caradonna, P., Kolbinger, B. et al. An atomic hydrogen beam to test ASACUSA’s apparatus for antihydrogen spectroscopy. Hyperfine Interact 233, 35–40 (2015). https://doi.org/10.1007/s10751-015-1151-y

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  • DOI: https://doi.org/10.1007/s10751-015-1151-y

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