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Measurement of the breakup channels in nuclear muon capture by3He and4He

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Abstract

The rates of the breakup reactions λB(3He) and λB(4He) in nuclear muon capture by3He and4He have been measured. The measurements were performed on the muon beam of PSI with a multi-anode high-pressure ionization chamber filled with isotopically pure3He or4He at 120 bar. The chamber was used as a target and detector for both the incoming muons and for the charged reaction products (tritons, deuterons and protons) of the breakup reactions ΛB(3He) and ΛB(4He). Our statistics, about 5 × 105 of breakup events, provides a possibility to improve the precision of evaluated rates. The preliminary results: λB(3He)=720 ± 70 s−1, λB(4He)=415 ± 40 s−1 are compared to theoretical predictions and to previous experiments.

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Authors and Affiliations

  1. Petersburg Nuclear Physics Institute, 188350, Gatchina, Russia

    E. M. Maev, D. V. Balin, V. N. Baturin, Yu. S. Grigoriev, G. E. Petrov, W. Prymas, G. G. Semenchuk, Yu. V. Smirenin, A. A. Vorobyov & N. I. Voropaev

  2. Institute for Medium Energy Physics, Austrian Academy of Sciences, A-1090, Vienna, Austria

    P. Ackerbauer, W. H. Breunlich, B. Lauss & J. Marton

  3. University of Victoria, VW82Y2, Victoria B.C., Canada

    G. A. Beer

  4. University of California and Lawrence Berkeley Laboratory, 94720, Berkeley, CA, USA

    T. Case, K. M. Crowe & P. Kammel

  5. Physics Department, Technical University of Munich, D-85747, Garching, Germany

    H. Daniel, T. von Egidy, F. J. Hartmann, M. Mühlbauer, W. Schott & P. Wojciechowski

  6. Université Catholique de Louvain, B-1348, Louvain-La-Neuve, Belgium

    J. Deutsch, J. Govaerts & R. Prieels

  7. Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland

    C. Petitjean & Th. Petitjean

Authors
  1. E. M. Maev
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  2. P. Ackerbauer
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  3. D. V. Balin
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  4. V. N. Baturin
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  5. G. A. Beer
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  6. W. H. Breunlich
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  7. T. Case
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  8. K. M. Crowe
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  9. H. Daniel
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  10. J. Deutsch
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  11. T. von Egidy
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  12. J. Govaerts
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  13. Yu. S. Grigoriev
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  14. F. J. Hartmann
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  15. P. Kammel
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  16. B. Lauss
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  17. J. Marton
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  18. M. Mühlbauer
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  19. C. Petitjean
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  20. Th. Petitjean
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  21. G. E. Petrov
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  22. R. Prieels
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  23. W. Prymas
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  24. W. Schott
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  25. G. G. Semenchuk
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  26. Yu. V. Smirenin
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  27. A. A. Vorobyov
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  28. N. I. Voropaev
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  29. P. Wojciechowski
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Maev, E.M., Ackerbauer, P., Balin, D.V. et al. Measurement of the breakup channels in nuclear muon capture by3He and4He. Hyperfine Interact 101, 423–427 (1996). https://doi.org/10.1007/BF02227651

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  • DOI: https://doi.org/10.1007/BF02227651

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