Event-by-event fluctuations in heavy-ion collisions and the quark-gluon string model

  • A. Capella
  • E.G. Ferreiro
  • A.B. Kaidalov
Theoretical physics


We apply dynamical string models of heavy-ion collisions at high energies to the analysis of event-by-event fluctuations. Attention is devoted mainly to a new variable proposed for studying “equilibration” in heavy-ion collisions. Recent results of the NA49 collaboration at CERN SPS are compared with predictions of the quark-gluon string model (QGSM), which gives a good description of different aspects of multiparticle production for collisions of nucleons and nuclei. It is shown that the new observable and other results of the NA49 analysis of event-by-event fluctuations are correctly reproduced in the model. We discuss dynamical effects responsible for these fluctuations and give the predictions for p-p, p-Pb and Pb-Pb collisions at RHIC and higher energies.


Transverse Momentum Monte Carlo Calculation String Model Nucleus Collision Nucleus Interaction 
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  1. 1.
    M. Gazdzicki and St. Mrowczynski, Zeit. Phys. C 54, 127 (1992)ADSCrossRefGoogle Scholar
  2. 2.
    G. Roland: NA49 Collaboration, Proceedings of the Hirschegg Workshop on QCD Phase Transitions, 1997, p. 309.Google Scholar
  3. 3.
    M. Gazdzicki, A. Leonidov, and G. Roland, IKF- HENPG/5-97Google Scholar
  4. 4.
    A. Leonidov, M. Nardi, and H. Satz, Nucl. Phys. A 610, 124 (1996)ADSCrossRefGoogle Scholar
  5. 5.
    F. Liu, A. Tai, M. Gazdzicki, and R. Stock, IKF-HENPG/1-98Google Scholar
  6. 6.
    N. Armesto, E.G. Ferreiro, and C. Pajares, University of Santiago de Compostela, private communication (1996)Google Scholar
  7. 7.
    M. Bleicher, et al., Phys. Lett. B 435, 9 (1998)ADSCrossRefGoogle Scholar
  8. 8.
    St. Mrowczynski, Phys. Lett. B 439, 6 (1998)ADSCrossRefGoogle Scholar
  9. 9.
    N.S. Amelin and L.V. Bravina, Sov. J. Nucl. Phys. 51, 133 (1990); N.S. Amelin, M.A. Braun, and C. Pajares, Zeit. Phys. C 63, 507 (1994)Google Scholar
  10. 10.
    A.B. Kaidalov, Phys. Lett. B 116, 459 (1982); A.B. Kaidalov and K.A. Ter-Martirosyan, Phys. Lett. B 117, 247 (1982)ADSCrossRefGoogle Scholar
  11. 11.
    A. Capella, U. Sukhatme, C.-I. Tan, and J. Tran Thanh Van, Phys. Lett. B 81, 68 (1979); A.Capella, U. Sukhatme, and J. Tran Thanh Van, Z. Phys. C 3, 329 (1980); A. Capella and J. Tran Thanh Van, Z. Phys. C 10, 249 (1981); Phys. Lett. B93, 146 (1980)ADSCrossRefGoogle Scholar
  12. 12.
    A. Kaidalov, in QCD at 200 TeV, edited by L. Cifarelli and Yu. Dokshitzer (Plenum Press 1992), p.1; A. Capella, U. Sukhatme, C.-I. Tan, and J. Tran Thanh Van, Phys. Rep. 236, 225 (1994)Google Scholar
  13. 13.
    V.N. Gribov, Yad. Fiz. 56 (1969) 892; ibid., 57, 1306 (1969)Google Scholar
  14. 14.
    A.B. Kaidalov, Nucl. Phys. A525, 33c (1991)Google Scholar
  15. 15.
    A. Capella and A. Krzywicki, Phys. Rev. D18, 3357 (1997)Google Scholar
  16. 16.
    I.V. Andreev and A.V. Chernov, Yad. Fiz. 28, 477 (1978)Google Scholar
  17. 17.
    V.A. Abramovsky, V.N. Gribov, and O.V. Kancheli, Sov. J. Nucl. Phys. 18, 308 (1974)Google Scholar
  18. 18.
    A.B. Kaidalov, Yad. Fiz. 45, 1452 (1987)Google Scholar
  19. 19.
    F. Ceradini: UA1 Collaboration, Proceedings of Inter. Europhysics Conference on High Energy Physics, Bari, Italy, 1985, p. 363Google Scholar

Copyright information

© Springer-Verlag 1999

Authors and Affiliations

  • A. Capella
    • 1
  • E.G. Ferreiro
    • 1
  • A.B. Kaidalov
    • 2
  1. 1.Laboratoire de Physique Theorique, Unité Mixte de Recherche (CNRS) UMR 8627Universite de Paris XI, Bat.210Orsay CedexFrance
  2. 2.Institute of Theoretical and Experimental PhysicsMoscowRussia

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