Extracting the Equation of State of Nuclear Matter through Hydrodynamical Analysis

Abstract

Predominantly preliminary single and double inclusive momentum spectra of 158 AGeV Pb+Pb collisions, recently measured by the NA44 and NA49 Collaborations, are reproduced using the relativistic hydrodynamical model HYLANDER-C. Two different equations of state, which both contain a phase transition to a quark-gluon plasma, can be used to reproduce the (preliminary) data. The space-time geometries in the two calculations differ strongly. However, the Bose-Einstein correlation functions of identical pion pairs do not show such a strong, but still a significant sensitivity to the effects of the equations of state.

Comments: 13 pages, including 8 figures. For a PostScript file of the manuscript, you can also goto http://t2.lanl.gov/schlei/eprint.html