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In-flight antiproton annihilation on nuclei at low energies

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Abstract

The results of the annihilation cross sections measurement of 5.3 MeV antiprotons on nickel, tin, platinum and Mylar targets performed by the ASACUSA Collaboration at CERN are presented and compared with the existing data and models. From the experimental point of view the presented data are the first measurement of antinucleon annihilation cross sections at low energies obtained with a pulsed beam. This results open the road for the next measurements at the very low energies of the order of 100 keV that are in progress by the ASACUSA Collaboration. The experimental method foreseen for the 100 keV measurement is illustrated.

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Authors and Affiliations

  1. Dipartimento di Chimica e Fisica per l’Ingegneria e per i Materiali, Università di Brescia, 25133, Brescia, Italy

    Maurizio Corradini, Marco Leali, Evandro Lodi-Rizzini, Valerio Mascagna, Aldo Mozzanica, Luca Venturelli & Nicola Zurlo

  2. Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Brescia, 25133, Brescia, Italy

    Maurizio Corradini, Marco Leali, Evandro Lodi-Rizzini, Valerio Mascagna, Aldo Mozzanica, Luca Venturelli & Nicola Zurlo

  3. Dipartimento di Scienze Fisiche e Matematiche, Università di Como, 22100, Como, Italy

    Michela Prest & Erik Vallazza

  4. Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, 34127, Trieste, Italy

    Michela Prest & Erik Vallazza

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

    Masaki Hori & Anna Soter

  6. Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan

    Masaki Hori, Takumi Kobayashi & Koichi Todoroki

Authors
  1. Maurizio Corradini
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  2. Masaki Hori
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  3. Takumi Kobayashi
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  4. Marco Leali
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  5. Evandro Lodi-Rizzini
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  6. Valerio Mascagna
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  7. Aldo Mozzanica
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  8. Michela Prest
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  9. Anna Soter
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  10. Koichi Todoroki
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  11. Erik Vallazza
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  12. Luca Venturelli
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  13. Nicola Zurlo
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Corresponding author

Correspondence to Luca Venturelli.

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Corradini, M., Hori, M., Kobayashi, T. et al. In-flight antiproton annihilation on nuclei at low energies. Hyperfine Interact 213, 31–39 (2012). https://doi.org/10.1007/s10751-011-0476-4

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  • DOI: https://doi.org/10.1007/s10751-011-0476-4

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