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Method for laser spectroscopy of metastable pionic helium atoms

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Abstract

The PiHe collaboration is currently attempting to carry out laser spectroscopy of metastable pionic helium atoms using the high-intensity π − beam of the ring cyclotron facility of the Paul Scherrer Institute. These atoms are heretofore hypothetical three-body Coulomb systems each composed of a helium nucleus, a π − occupying a Rydberg state, and an electron occupying the 1s ground state. We briefly review the proposed method by which we intend to detect the laser spectroscopic signal. This complements our experiments on metastable antiprotonic helium atoms at CERN.

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Authors and Affiliations

  1. Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748, Garching, Germany

    M. Hori, A. Sótér & H. Aghai-Khozani

  2. CERN, 1211, Geneva 23, Switzerland

    D. Barna

  3. Paul Scherrer Institut, 5232, Villigen, Switzerland

    A. Dax

  4. Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan

    R. S. Hayano, Y. Murakami & H. Yamada

Authors
  1. M. Hori
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  2. A. Sótér
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  3. H. Aghai-Khozani
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  4. D. Barna
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  5. A. Dax
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  6. R. S. Hayano
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  7. Y. Murakami
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  8. H. Yamada
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Corresponding author

Correspondence to M. Hori.

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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Hori, M., Sótér, A., Aghai-Khozani, H. et al. Method for laser spectroscopy of metastable pionic helium atoms. Hyperfine Interact 233, 83–87 (2015). https://doi.org/10.1007/s10751-015-1163-7

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  • DOI: https://doi.org/10.1007/s10751-015-1163-7

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