Can Momentum Correlations Proof Kinetic Equilibration in Heavy Ion Collisions at 160 AGeV?

M. Bleicher , M. Belkacem , C. Ernst , H. Weber , L. Gerland , C. Spieles , S. A. Bass , H. St\"ocker

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W. Greiner (Institut f\"ur Theoretische Physik J.W.Goethe Universit\"at Frankfurt am Main Germany)

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classification ✦ hep-ph

keywords collisionsmomentumagevanalysiscentralcontrastcorrelationsdistribution

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We perform an event-by-event analysis of the transverse momentum distribution of final state particles in central Pb(160AGeV)+Pb collisions within a microscopic non-equilibrium transport model (UrQMD). Strong influence of rescattering is found. The extracted momentum distributions show less fluctuations in A+A collisions than in p+p reactions. This is in contrast to simplified p+p extrapolations and random walk models.

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Can Momentum Correlations Proof Kinetic Equilibration in Heavy Ion Collisions at 160 AGeV?

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