Space-time evolution of bulk QCD matter at RHIC: 3-D hydro + cascade model

Chiho Nonaka

We introduce a combined fully three-dimensional macroscopic/microscopic transport approach employing relativistic 3D-hydrodynamics for the early, dense, deconfined stage of the reaction and a microscopic non-equilibrium model for the later hadronic stage where viscosity effect, resonance effect and reaction dynamics is taken into account. Within this approach we study the detailed dynamics of hot, bulk QCD matter, whichis expected to be created in ultra-relativistic heavy ion collisions at RHIC. Our approach is capable of self-consistently calculating the freeze-out of the hadronic system, while accounting for the collective flow on the hadronization hypersurface generated by the QGP expansion. In particular, we perform a detailed analysis of the reaction dynamics, hadronic freeze-out, transverse flow and elliptic flow.