EPJ

2024 Impact factor 2.8
EPJ A - Hadrons and Nuclei
Hadrons and Nuclei
\n This email address is being protected from spambots. You need JavaScript enabled to view it. ), CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others -->

Eur. Phys. J. A 9, 357-364

Thermal dileptons from quark and hadron phases of an expanding fireball

R.A. Schneider - W. Weise

Physik-Department, Technische Universität München,D-85747 Garching, Germany

Received: 4 August 2000
Communicated by A. Schäfer

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 $T_{\rm C}$ between 130-170 MeV is assumed. We also consider a possible mixed phase scenario. We include thermal corrections to the hadronic spectra below $T_{\rm C}$ and use perturbation theory above $T_{\rm C}$. 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

Copyright Società Italiana di Fisica, Springer-Verlag 2000

Conference announcements