Abstract
We analyze the elliptic flow parameter in Pb+Pb collisions at 2.76 TeV and in Au+Au collisions at GeV using a hybrid model in which the evolution of the quark gluon plasma is described by ideal hydrodynamics with a state-of-the-art lattice QCD equation of state, and the subsequent hadronic stage by a hadron cascade model. For initial conditions, we employ Monte Carlo versions of the Glauber and the Kharzeev-Levin-Nardi models and compare results with each other. We demonstrate that the differential elliptic flow hardly changes when the collision energy increases, whereas the integrated increases due to the enhancement of mean transverse momentum. The amount of increase of both and mean depends significantly on the model of initialization.
- Received 20 December 2010
DOI:https://doi.org/10.1103/PhysRevC.84.011901
©2011 American Physical Society