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Search for a bound trineutron with the 3He(π−pgr;+)nnn reaction

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Abstract.

A search for the production of a bound trineutron state has been performed using the reaction 3He(π−,π+)nnn at incident pion energies of 65, 75, and 120 MeV. No evidence for the existence of the 3n was found, and an upper limit for the production cross section of approximately 30 nb/sr (2σ confidence level) was obtained.

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Authors and Affiliations

  1. Physikalisches Institut, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany, , , , , , DE

    J. Gräter, R. Bilger, H. Clement, R. Meier, J. Pätzold & G.J. Wagner

  2. TRIUMF, 4004 Wesbrook Mall, Vancouver BC, V6T 2A3, Canada, , , , , , CA

    P.A. Amaudruz, L. Felawka, D. Ottewell, K. Raywood & G.R. Smith

  3. University and INFN Trieste, 34127 Trieste, Italy, , , , , , IT

    P. Camerini, E. Friagiacomo, N. Grion & R. Rui

  4. School of Physics, University of Melbourne, Parkville, Victoria 3052, Australia, , , , , , AU

    J. Clark, G. Moloney & M.E. Sevior

  5. Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel, , , , , , IL

    E. Friedman

  6. Institute for Nuclear Research, 117312 Moscow, Russia, , , , , , RU

    S.N. Filippov, Y.K. Gavrilov & T.L. Karavicheva

  7. California State University, 6000 J St, Sacramento, California, 95819, , , , , , US

    E. Gibson

  8. Department of Physics and Astronomy, University of British Columbia, Vancouver BC, V6T 2A6, Canada, , , , , , CA

    G.J. Hofman, B. Jamieson, M. KermaniPresent address: Sonigistix Corporation, Richmond, B.C., Canada V7A-5E3--> & G. Tagliente

  9. University of Regina, Regina Saskatchewan S4S 0A2, Canada, , , , , , CA

    E.L. Mathie, R. Tacik & M. Yeomans

  10. RRC Kurchatov Institut, 123182 Moscow, Russia, , , , , , RU

    O. Patarakin

  11. ITEP Moscow, 117218 Moscow, Russia, , , , , , RU

    M. Schepkin

  12. Universität Karlsruhe, Kaiserstr.~12, 76128 Karlsruhe, Germany, , , , , , DE

    H. Staudenmaier

Authors
  1. J. Gräter
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  2. P.A. Amaudruz
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  3. R. Bilger
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  4. P. Camerini
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  5. J. Clark
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  6. H. Clement
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  7. E. Friedman
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  8. L. Felawka
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  9. S.N. Filippov
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  10. E. Friagiacomo
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  11. Y.K. Gavrilov
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  12. E. Gibson
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  13. N. Grion
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  14. G.J. Hofman
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  15. B. Jamieson
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  16. T.L. Karavicheva
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  17. M. KermaniPresent address: Sonigistix Corporation, Richmond, B.C., Canada V7A-5E3-->
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  18. E.L. Mathie
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  19. R. Meier
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  20. G. Moloney
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  21. D. Ottewell
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  22. J. Pätzold
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  23. O. Patarakin
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  24. K. Raywood
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  25. R. Rui
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  26. M. Schepkin
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  27. M.E. Sevior
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  28. G.R. Smith
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  29. H. Staudenmaier
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  30. R. Tacik
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  31. G. Tagliente
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  32. G.J. Wagner
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  33. M. Yeomans
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Additional information

Received: 22 October 1998

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Gräter, J., Amaudruz, P., Bilger, R. et al. Search for a bound trineutron with the 3He(π−pgr;+)nnn reaction . EPJ A 4, 5–7 (1999). https://doi.org/10.1007/s100500050196

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  • DOI: https://doi.org/10.1007/s100500050196

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