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Münster 2002 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 9: Poster Session: Theory

HK 9.3: Poster

Tuesday, March 12, 2002, 10:30–12:45, Foyer Chemie

Thermodynamics of fireball expansion — •Thorsten Renk1, Roland A. Schneider1, and Wolfram Weise1,21Technische Universität München — 2ECT, Trento

The fireball created in an ultrarelativistic heavy ion collision is the environment in which all processes providing clues about the possible formation of the quark-gluon plasma (QGP) happen. It is therefore crucial to understand the dynamics of this hot and dense system. We set up a model in which the fireball evolution is reconstructed between two stages, the freeze-out, which is accessible by hadronic observables, and the initial conditions for which the overlap geometry can be calculated. Using the equation of state (EoS) provided by a quasiparticle model of the QGP, we are able to calculate thermodynamical properties in volume slices of constant proper time and determine the volume expansion self-consistently. The resulting evolution model can then be tested against other observables.
Work supportet in part by BMBF and GSI.

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