Acta Physica Hungarica

, Volume 24, Issue 1–4, pp 23–29 | Cite as

Study on Chemical Equilibrium in Nucleus–Nucleus Collisions at Relativistic Energies

  • J. Manninen
  • F. Becattini
  • A. Keränen
  • M. Gaździcki
  • R. Stock
Article

Summary

We present a detailed study of chemical freeze-out in nucleus–nucleus collisions at beam energies of 11.6, 30, 40, 80 and 158<i>A</i> GeV. By analyzing hadronic multiplicities within the statistical hadronization approach, we have studied the chemical equilibration of the system as a function of center of mass energy and of the parameters of the source. Additionally, we have tested and compared different versions of the statistical model, with special emphasis on possible explanations of the observed strangeness hadronic phase space under-saturation.

hadronization gluon plasma heavy ion quark&ndash statistical model 

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Copyright information

© Akadémiai Kiadó 2005

Authors and Affiliations

  • J. Manninen
    • 1
  • F. Becattini
    • 2
  • A. Keränen
    • 1
    • 2
  • M. Gaździcki
    • 3
    • 4
  • R. Stock
    • 3
    • 5
  1. 1.University of OuluOuluFinland
  2. 2.Department of Physics, Università di Firenze and INFN Sezione di FirenzeFirenzeItaly
  3. 3.Institut für Kernphysik, Universität FrankfurtFrankfurtGermany
  4. 4.Świętokrzyska AcademyKielcePoland
  5. 5.CERNGenevaSwitzerland

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