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Evidence for a non-\(q\bar q\) tensor meson at 1,410 MeV produced in the reaction π− p→K 0 s K 0 s n at 63 GeV

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Zeitschrift für Physik C Particles and Fields

Abstract

We present an analysis of theK 0 s K 0 s system produced in the reaction π− p→K 0 s K 0 s n at 63 GeV based on ∼700 events in the kinematical region of |t|<0.5 GeV2. We concentrate on masses between 1,200 and 1,600 MeV where a double maximum structure is observed. Performing an amplitude analysis in this mass interval we find thatS,D 0 andD + waves contribute to the mass spectrum at approximately equal strength. The peaks are attributed to spin 2 waves. However, we failed to explained them by interferingf(1270),A 2(1310) andf′(1520) resonances alone. While the first peak can be associated withf(1270)−A 2(1310) production, an additional tensor meson is needed with mass of ∼1410 MeV and a narrow width for a description of the second one. The analysis as well as the energy dependence deduced from some publishedK 0 s K 0 s mass spectra suggests this object to be dominantly produced by a natural parity exchange. Because the 2++ \(q\bar q\) nonet is already complete the nature of the new tensor meson is an open question.

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Authors and Affiliations

  1. NIKHEF-H, NL-1009 DB, Amsterdam, The Netherlands

    C. Daum, L. Hertzberger, W. Hoogland, S. Peters & P. Van Deurzen

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

    A. Berglund, V. Chabaud, A. Gonzalez-Arroyo, B. Hyams, H. Tiecke & P. Weilhammer

  3. Institute of Nuclear Physics, PL-30-055, Krakow, Poland

    A. Dwurazny, H. Palka, G. Polok, K. Rybicki, M. Turala, J. Turnau & A. Zalewska

  4. Max-Planck-Institut für Physik und Astrophysik, Werner Heisenberg Institut für Physik, D-8000, München-40, Federal Republic of Germany

    H. Becker, G. Blanar, M. Cerrada, H. Dietl, J. Gallivan, M. Glaubman, R. Klanner, E. Lorenz, G. Lütjens, G. Lutz, W. Männer, A. Pugl & U. Stierlin

  5. Nuclear Physics Laboratory, Oxford University, OX1 3NP, Oxford, UK

    J. Blakey, M. Bowler, R. Cashmore, J. Loken, J. Spalding & G. Thompson

  6. Rutherford Appleton Lab., Chilton, OX110QX, Didcot, Oxon, UK

    B. Alper, C. Damerell, A. Gillman, J. Hardwick & F. Wickens

Authors
  1. C. Daum
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  2. L. Hertzberger
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  3. W. Hoogland
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  4. S. Peters
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  5. P. Van Deurzen
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  6. A. Berglund
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  7. V. Chabaud
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  8. A. Gonzalez-Arroyo
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  9. B. Hyams
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  10. H. Tiecke
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  11. P. Weilhammer
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  12. A. Dwurazny
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  13. H. Palka
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  14. G. Polok
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  15. K. Rybicki
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  16. M. Turala
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  17. J. Turnau
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  18. A. Zalewska
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  19. H. Becker
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  20. G. Blanar
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  21. M. Cerrada
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  22. H. Dietl
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  23. J. Gallivan
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  24. M. Glaubman
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  25. R. Klanner
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  26. E. Lorenz
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  27. G. Lütjens
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  28. G. Lutz
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  29. W. Männer
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  30. A. Pugl
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  31. U. Stierlin
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  32. J. Blakey
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  33. M. Bowler
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  34. R. Cashmore
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  35. J. Loken
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  36. J. Spalding
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  37. G. Thompson
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  38. B. Alper
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  39. C. Damerell
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  40. A. Gillman
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  41. J. Hardwick
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  42. F. Wickens
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Accmor Collaboration., Daum, C., Hertzberger, L. et al. Evidence for a non-\(q\bar q\) tensor meson at 1,410 MeV produced in the reaction π− p→K 0 s K 0 s n at 63 GeV. Z. Phys. C - Particles and Fields 23, 339–347 (1984). https://doi.org/10.1007/BF01572657

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  • DOI: https://doi.org/10.1007/BF01572657

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