Collective flow and pion production in a hydrodynamic model

Abstract

A new heavy-ion collision model which couples ideal, relativistic hydrodynamics with dynamical pions is described. The collective flow predicted by the model is shown to compare favorably to results obtained in earlier hydrodynamic calculations using quite different numerical methods. Discrepancies with experimental data are discussed, as are possible resolutions of the differences. Pion multiplicities resulting from the model are presented along with their experimental implications. Extensions to the model are discussed as well.