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Neutral decays of the η-meson

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Zeitschrift für Physik C Particles and Fields

Abstract

The partial widths of η-meson decays η→2γ, η→3π0 and η→π0γγ have been measured in a high accuracy experiment made at the IHEP accelerator with the hodoscope electromagnetic spectrometer GAMS-2000. An upper limit has been determined for the 3γ channel. The Dalitz plot of the η decay into 3π0 shows that the matrix element does not depend on the pion energy.

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Author notes

  1. D. Alde

    Present address: Los Alamos National Laboratory, 87545, Los Alamos, NM, USA

Authors and Affiliations

  1. Institute for High Energy Physics, SU-142284, Serpukhov, USSR

    S. V. Donskov, A. V. Inyakin, D. B. Kakauridze, V. A. Kachanov, G. V. Khaustov, A. V. Kulik, A. A. Lednev, V. A. Maisheev, Yu. M. Melnik, Yu. V. Mikhailov, Yu. D. Prokoshkin, Yu. V. Rodnov, S. A. Sadovsky, P. M. Shagin, A. V. Singovsky & V. P. Sugonyaev

  2. Institut Interuniversitaire des Sciences Nucléaires, B-1050, Brussels, Belgium

    F. Binon, C. Bricman, J. P. Lagnaux, Th. Mouthuy & J. P. Stroot

  3. Laboratoire d'Annecy de Physique des Particules, F-74019, Annecy-le-Vieux, France

    M. Gouanère, J. P. Peigneux & D. Sillou

  4. CERN, CH-1211, Geneva 23, Switzerland

    D. Alde, P. Duteil & A. Possoz

Authors
  1. D. Alde
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  2. F. Binon
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  3. C. Bricman
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  4. S. V. Donskov
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  5. P. Duteil
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  6. M. Gouanère
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  7. A. V. Inyakin
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  8. D. B. Kakauridze
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  9. V. A. Kachanov
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  10. G. V. Khaustov
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  11. A. V. Kulik
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  12. J. P. Lagnaux
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  13. A. A. Lednev
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  14. V. A. Maisheev
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  15. Yu. M. Melnik
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  16. Yu. V. Mikhailov
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  17. Th. Mouthuy
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  18. J. P. Peigneux
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  19. A. Possoz
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  20. Yu. D. Prokoshkin
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  21. Yu. V. Rodnov
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  22. S. A. Sadovsky
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  23. P. M. Shagin
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  24. D. Sillou
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  25. A. V. Singovsky
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  26. J. P. Stroot
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  27. V. P. Sugonyaev
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Additional information

IHEP-IISN-LAPP Collaboration

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Alde, D., Binon, F., Bricman, C. et al. Neutral decays of the η-meson. Z. Phys. C - Particles and Fields 25, 225–229 (1984). https://doi.org/10.1007/BF01547921

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  • DOI: https://doi.org/10.1007/BF01547921

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