Hadron-string cascade versus hydrodynamics in Cu+Cu collisions at $\sqrt{s_{NN}}=200$ GeV

Abstract

Single particle spectra as well as elliptic flow in Cu+Cu collisions at $\sqrt{s_{NN}}=200$ GeV are investigated within a hadronic cascade model and an ideal hydrodynamic model. Pseudorapidity distribution and transverse momentum spectra for charged hadrons are surprisingly comparable between these two models. However, a large deviation is predicted for the elliptic flow. The forthcoming experimental data will clarify the transport and thermalization aspects of matter produced in Cu+Cu collisions.

Comments: 5 pages, 5 figures; Version to appear in Phys.Rev.C