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First results from experiment WA91 at the CERN omega spectrometer

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Il Nuovo Cimento A (1965-1970)

Summary

Experiment WA91 searches for non-\(q\bar q\) mesons produced in the central region in the reaction pp→pf(X0)ps at 450 GeV/c using the CERN Omega Spectrometer. WA91 is a continuation of the WA76 experiment which has studied this reaction using beams of 85 and 300 GeV/c. Preliminary results from experiment WA91 are presented. In particular the X(1450) and X(1900) observed for the first time in the π+π-π+π- channel of the WA76 experiment at 300 GeV/c are confirmed by the WA91 data.

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Authors and Affiliations

  1. Nuclear Physics Department, Athens University, Athens, Greece

    G. Vassiliadis & I. Vichou

  2. Dipartimento di Fisica dell'Università, Bari, Italia

    D. Di Bari, R. Fini, B. Ghidini, M. Girone, A. Jacholkowski, V. Lenti, A. Loconsole, V. Manzari & F. Navach

  3. INFN, Sezione di Bari, Bari, Italia

    D. Di Bari, R. Fini, B. Ghidini, M. Girone, A. Jacholkowski, V. Lenti, A. Loconsole, V. Manzari & F. Navach

  4. Physics Department, Università of Birmingham, Birmingham, UK

    R. P. Barnes, A. Bayes, J. N. Carney, S. Clewer, J. P. Davies, C. J. Dodenhoff, J. B. Kinson, O. Villalobos Baillie & M. F. Votruba

  5. CERN, European Organization for Nuclear Research, Geneva, Switzerland

    F. Antinori, D. Barberis, W. Beusch, D. Evans, B. R. French, A. Kirk, E. Quercigh, M. Sené & R. Sené

  6. Joint Institute for Nuclear Research, Dubna, Russia

    S. Maljukov, I. Minashvili, V. Romanovsky, N. Russakovich, A. Semenov, A. Solovjev & G. Tchlatchidze

Authors
  1. F. Antinori
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  2. D. Barberis
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  3. R. P. Barnes
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  4. A. Bayes
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  5. W. Beusch
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  6. J. N. Carney
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  7. S. Clewer
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  8. J. P. Davies
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  9. D. Di Bari
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  10. C. J. Dodenhoff
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  11. D. Evans
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  12. R. Fini
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  13. B. R. French
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  14. B. Ghidini
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  15. M. Girone
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  16. A. Jacholkowski
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  17. J. B. Kinson
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  18. A. Kirk
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  19. V. Lenti
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  20. A. Loconsole
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  21. S. Maljukov
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  22. V. Manzari
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  23. I. Minashvili
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  24. F. Navach
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  25. E. Quercigh
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  26. V. Romanovsky
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  27. N. Russakovich
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  28. A. Semenov
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  29. M. Sené
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  30. R. Sené
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  31. A. Solovjev
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  32. G. Tchlatchidze
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  33. G. Vassiliadis
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  34. I. Vichou
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  35. O. Villalobos Baillie
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  36. M. F. Votruba
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Consortia

The WA91 Collaboration

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The WA91 Collaboration., Antinori, F., Barberis, D. et al. First results from experiment WA91 at the CERN omega spectrometer. Nuov Cim A 107, 1857–1865 (1994). https://doi.org/10.1007/BF02823580

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  • DOI: https://doi.org/10.1007/BF02823580

PACS 13.85

PACS 14.40.Cs

PACS 01.30.Cc

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