Space-time Evolution of Quark-Gluon Plasma Fluid with First Order Phase Transition
S. Muroya, C. Nonaka
Abstract
We numerically solve the (3+1)-dimensional relativistic hydrodynamical equation with a bag-model equation of state, which is one of the simplest models for the first order phase transition. Based on the numerical solution, we discuss the space-time evolution of the hot fluid produced in ultra relativistic nuclear collisions. Especially, the space-time structure of the two-phase co-existing region during the quark-gluon plasma-hadron phase transition is analyzed in detail. Finally, we investigate the change of the mass spectra of J/ψ, ηc and ϕ as possible experimental signatures of the phase transition.
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