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The thermal model and the transition from baryonic to mesonic freeze-out

  • Quark-Gluon-Plasma Thermalization
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Abstract.

The present status of the thermal model is reviewed and the recently discovered sharp peak in the K +/π+ ratio is discussed in this framework. It is shown that the rapid change is related to a transition from a baryon-dominated hadronic gas to a meson-dominated one. Further experimental tests to clarify the nature of the transition are discussed. In the thermal model the corresponding maxima in the Ξ/π and Ω/π ratios occur at slightly different beam energies.

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Authors and Affiliations

  1. UCT-CERN Research Centre and Department of Physics, University of Cape Town, 7701, Rondebosch, South Africa

    J. Cleymans & S. Wheaton

  2. Darmstadt University of Technology, D-64289, Darmstadt, Germany

    H. Oeschler

  3. Institute of Theoretical Physics, University of Wrocław, Pl. Maksa Borna 9, 50-204, Wrocław, Poland

    K. Redlich

  4. CERN TH, CH 1211, Geneva 23, Switzerland

    K. Redlich

Authors
  1. J. Cleymans
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  2. H. Oeschler
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  3. K. Redlich
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  4. S. Wheaton
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Corresponding author

Correspondence to J. Cleymans.

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Cleymans, J., Oeschler, H., Redlich, K. et al. The thermal model and the transition from baryonic to mesonic freeze-out. Eur. Phys. J. A 29, 119–121 (2006). https://doi.org/10.1140/epja/i2005-10309-6

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  • DOI: https://doi.org/10.1140/epja/i2005-10309-6

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