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Dresden 2000 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 14: Postersitzung / Theorie

HK 14.39: Poster

Thursday, March 23, 2000, 10:15–12:45, B 113

Nonequilibrium dynamics of strangeness production in heavy ion collisions — •Stefan Scherer — Institut f"ur Theoretische Physik, Johann Wolfgang Goethe Universit"at, Frankfurt/Main

The excitation function of strangeness production in relativistic heavy ion collisions as measured by the strangeness to pion ratio is lower for A+A reactions as compared to extrapolation from N+N reactions at SPS energies. This has been interpreted as a sign for the transition to the QGP.

We will discuss the strangeness excitation function as seen in the light of different nonequilibrium models: the macroscopic three fluid hydrodynamical model, the UrQMD, a hadronic transport model including strings, and the qMD, a molecular dynamics of quarks.

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