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Pion chemical potentials in heavy-ion collisions: relativistic quantum molecular dynamic analysis

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Zeitschrift für Physik C Particles and Fields

Abstract

In the framework of relativistic quantum molecular dynamics we analyse pion chemical potentials in the hadron system produced in central heavy-ion collisions at the bombarding energiesE lab/A=(1–2) GeV/nucl. We find that the equilibrium relations hold for chemical potentials of π−, of π0, of π+ and pion energy spectra reach local thermal equilibrium. However, there is no chemical equilibrium. The pion chemical potentials are very large and decrease during the expansion stage.

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Author notes

  1. Mark Gorenstein

    Present address: Institute for Theoretical Physics, 252130, Kiev-130, Ukraine

Authors and Affiliations

  1. Institut für Theoretische Physik, Universität, Postfach 111932, W-6000, Frankfurt 11, Germany

    Debades Bandyopadhyay (Alexander von Humboldt Fellow), Mark Gorenstein, Horst Stöcker & Walter Greiner

  2. Theory, T-2, M.S. B243, Los Alamos National Laboratory, P.O. Box 1663, 87545, Los Alamos, NM, USA

    Heinz Sorge

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  1. Debades Bandyopadhyay
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  2. Mark Gorenstein
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  3. Horst Stöcker
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  4. Walter Greiner
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  5. Heinz Sorge
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Bandyopadhyay, D., Gorenstein, M., Stöcker, H. et al. Pion chemical potentials in heavy-ion collisions: relativistic quantum molecular dynamic analysis. Z. Phys. C - Particles and Fields 58, 461–464 (1993). https://doi.org/10.1007/BF01557704

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  • DOI: https://doi.org/10.1007/BF01557704

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