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Thermal photons as a measure for the rapidity dependence of the temperature

  • Heavy Ion Physics
  • Published:
Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The rapidity distribution of thermal photons produced in Pb+Pb collisions at CERN-SPS energies is calculated within scaling and three-fluid hydrodynamics. It is shown that these scenarios lead to very different rapidity spectra. A measurement of the rapidity dependence of photon radiation can give cleaner insight into the reaction dynamics than pion spectra, especially into the rapidity dependence of the temperature at early times.

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Authors and Affiliations

  1. Institut für Theoretische Physik der J.W. Goethe-Universität, Postfach 111932, D-60054, Frankfurt a.M., Germany

    A. Dumitru, U. Katscher, J. A. Maruhn, H. Stöcker & W. Greiner

  2. Physics Department, Pupin Laboratories, Columbia University, 10027, New York, NY, USA

    D. H. Rischke

Authors
  1. A. Dumitru
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  2. U. Katscher
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  3. J. A. Maruhn
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  4. H. Stöcker
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  5. W. Greiner
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  6. D. H. Rischke
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Additional information

Communicated by A. Schäfer

We acknowledge helpful discussions with M. Asakawa, M. Gyulassy, H. Sorge and D.K. Srivastava. D.H.R. thanks the Alexander v. Humboldt-Stiftung for support under the Feodor-Lynen program and the Director, Office of Energy Research, Division of Nuclear Physics of the Office of High Energy and Nuclear Physics of the U.S. Dept. of Energy, for support under contract No. DE-FG-02-93ER-40764. This work was supported by BMFT, DFG, and GSI.

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Dumitru, A., Katscher, U., Maruhn, J.A. et al. Thermal photons as a measure for the rapidity dependence of the temperature. Z. Physik A - Hadrons and Nuclei 353, 187–190 (1995). https://doi.org/10.1007/BF01295896

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  • DOI: https://doi.org/10.1007/BF01295896

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