arXiv:hep-ph/9803345·v1·High Energy Physics — Phenomenology
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. Stöcker🇩🇪 · W. Greiner (Institut für Theoretische Physik, J.W.Goethe Universität, Frankfurt am Main, Germany)🇩🇪
Abstract
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.
Comments: 9 pages, 3 eps figures, submitted to Phys. Lett. B