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Invariant mass dependence of particle correlations in π+ p andK + p interactions at 250 GeV/c

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Zeitschrift für Physik C Particles and Fields

Abstract

We study two- and three-particle correlations as a function of invariant mass. Using data on π+ p andK + p collisions at 250 GeV/c, we compare correlation functions and normalised factorial cumulants for various charge combinations. Strong positive correlations are observed only at small invariant masses. The normalised cumulants for “exotic” [(−−), (++)] and “nonexotic” pairs (+−) and triplets decrease in power-like fashion with increasing invariant mass. The mass dependence is not incompatible with the power-law behaviour as expected in a Dual Mueller-Regge framework. Comparison with FRITIOF reveals strong disagreements, which are due to too large production rates of resonances, such as ρ0 and η, and the absence of a Bose-Einstein low-mass enhancement in JETSET.

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Author notes

  1. F. Botterweck & A. Tomaradze

    Present address: Department of Physics, University Instelling Antwerpen, B-2610, Wilrijk, Belgium

  2. E. A. De Wolf

    Present address: Onderzoeksleider NFWO, Belgium

Authors and Affiliations

  1. Department of Physics, University Instelling Antwerpen, B-2610, Wilrijk, Belgium

    E. A. De Wolf & F. Verbeure

  2. Institute of Physics and Nuclear Technique of Academy of Mining and Metallurgy and Institute of Nuclear Physics, PL-30055, Krakow, Poland

    K. Dziunikowska & D. Kisielewska

  3. Nucl. Phys. Institute, Moscow State University, 119899, Moscow, Russia

    F. K. Rizatdinova, E. K. Shabalina & L. N. Smirnova

  4. University of Nijmegen and NIKHEF-H, NL-6525 ED, Nijmegen, The Netherlands

    F. Botterweck, M. Charlet (EC Guest Scientist) & W. Kittel

  5. Institute for High Energy Physics, 142284, Protvino, Russia

    I. V. Ajinenko & P. V. Chliapnikov

  6. Centro Brasileiro de Pesquisas Fisicas, 22290, Rio de Janeiro, Brazil

    A. M. F. Endler

  7. Institute of High Energy Physics of Tbilisi State University, 380086, Tbilisi, Georgia

    Z. G. Garutchava & A. Tomaradze

  8. Institute of Physics, 375036, Yerevan, Armenia

    G. R. Gulkanyan & J. K. Karamyan

  9. Inter-University Institute for High Energies, B-1050, Brussels, Belgium

    F. Verbeure

Authors
  1. I. V. Ajinenko
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  2. F. Botterweck
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  3. M. Charlet
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  4. P. V. Chliapnikov
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  5. E. A. De Wolf
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  6. K. Dziunikowska
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  7. A. M. F. Endler
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  8. Z. G. Garutchava
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  9. G. R. Gulkanyan
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  10. J. K. Karamyan
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  11. D. Kisielewska
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  12. W. Kittel
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  13. F. K. Rizatdinova
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  14. E. K. Shabalina
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  15. L. N. Smirnova
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  16. A. Tomaradze
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  17. F. Verbeure
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EHS/NA22 Collaboration

Additional information

Partially supported by grants from CPBP 01.06 anf 01.09 Also at Universitaite Instelling Antwerpen

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EHS/NA22 Collaboration., Ajinenko, I.V., Botterweck, F. et al. Invariant mass dependence of particle correlations in π+ p andK + p interactions at 250 GeV/c. Z. Phys. C - Particles and Fields 61, 567–577 (1994). https://doi.org/10.1007/BF01552623

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  • DOI: https://doi.org/10.1007/BF01552623

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