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Two-proton correlations in the target fragmentation region of nuclear collisions at 200A GeV

  • Experimental Physics
  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

Correlations between protons are studied in the target fragmentation region of reactions of protons and16O with C, Cu, Ag, Au and of32S with Al and Au at 200A GeV. The emitted protons were measured with the Plastic Ball detector in the WA80 experiment at the CERN SPS. The comparison of the correlation function with calculations, assuming a spherical, gaussian shaped source with a lifetime τ=0 fm/c, allows the extraction of radius parameters. The values are very close to those expected from the geometry of the target nuclei and increase with the target mass as αA 1/3Target . Even in proton induced reactions the whole target nucleus is involved. The dependence of the radii on centrality, polar angleθ lab, and energy, and their relation to measured proton yields are presented.

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Authors and Affiliations

  1. Gesellschaft für Schwerionenforschung, D-64220, Darmstadt, Germany

    R. Bock, H. H. Gutbrod, B. W. Kolb, M. Purschke, B. Roters, H. R. Schmidt & P. Steinhaeuser

  2. Lawrence Berkeley Laboratory, 94720, Berkeley, CA, USA

    M. A. Bloomer, P. Jacobs & A. M. Poskanzer

  3. University of Lund, S-22362, Lund, Sweden

    A. Eklund, S. Garpman, H. Gustafsson, J. Idh, A. Oskarsson, I. Otterlund & E. Stenlund

  4. University of Münster, D-48149, Münster, Germany

    C. Barlag, F. Berger, C. Blume, D. Bock, E. -M. Bohne, D. Bucher, A. Claussen, G. Clewing, L. Dragon, R. Glasow, G. Hölker, K. H. Kampert, T. Peitzmann, R. Santo, K. Steffens & D. Stüken

  5. Oak Ridge National Laboratory, 37831, Oak Ridge, TN, USA

    T. C. Awes, F. E. Obenshain, F. Plasil, S. Saini, S. P. Sørensen & G. R. Young

  6. KVI, University of Groningen, NL-9747 AA, Groningen, Netherlands

    H. Löhner & I. Lund

  7. University of Tennessee, 37996, Knoxville, TN, USA

    S. P. Sørensen

Authors
  1. T. C. Awes
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  2. C. Barlag
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  3. F. Berger
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  4. M. A. Bloomer
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  5. C. Blume
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  6. D. Bock
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  7. R. Bock
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  8. E. -M. Bohne
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  9. D. Bucher
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  10. A. Claussen
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  11. G. Clewing
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  12. L. Dragon
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  13. A. Eklund
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  14. S. Garpman
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  15. R. Glasow
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  16. H. Gustafsson
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  17. H. H. Gutbrod
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  18. G. Hölker
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  19. J. Idh
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  20. P. Jacobs
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  21. K. H. Kampert
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  22. B. W. Kolb
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  23. H. Löhner
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  24. I. Lund
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  25. F. E. Obenshain
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  26. A. Oskarsson
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  27. I. Otterlund
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  28. T. Peitzmann
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  29. F. Plasil
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  30. A. M. Poskanzer
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  31. M. Purschke
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  32. B. Roters
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  33. S. Saini
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  34. R. Santo
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  35. H. R. Schmidt
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  36. S. P. Sørensen
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  37. K. Steffens
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  38. P. Steinhaeuser
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  39. E. Stenlund
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  40. D. Stüken
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  41. G. R. Young
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WA80 Collaboration

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WA80 Collaboration., Awes, T.C., Barlag, C. et al. Two-proton correlations in the target fragmentation region of nuclear collisions at 200A GeV. Z. Phys. C - Particles and Fields 65, 207–213 (1995). https://doi.org/10.1007/BF01571877

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  • DOI: https://doi.org/10.1007/BF01571877

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