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Thermal dileptons from quark and hadron phases of an expanding fireball

  • R.A. Schneider
  • W. Weise

Abstract:

A fireball model with time evolution based on transport calculations is used to examine the dilepton emission rate of an ultra-relativistic heavy-ion collision. A transition from hadronic matter to a quark-gluon plasma at a critical temperature TC between 130-170 MeV is assumed. We also consider a possible mixed phase scenario. We include thermal corrections to the hadronic spectra below TC and use perturbation theory above TC. The sensitivity of the spectra with respect to the freeze-out temperature, the initial fireball temperature and the critical temperature is investigated.

PACS. 12.38.Mh Quark-gluon plasma – 11.10.Wx Finite-temperature field theory 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2000

Authors and Affiliations

  • R.A. Schneider
    • 1
  • W. Weise
    • 1
  1. 1.Physik-Department, Technische Universität München,D-85747 Garching, GermanyDE

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