Eccentricity Fluctuation in Initial Conditions of Hydrodynamics
Abstract
We study effects of eccentricity fluctuations on the elliptic flow coefficient v2 at mid-rapidity in both Au+Au and Cu+Cu collisions at sqrtsNN=200 GeV by using a hybrid model that combines ideal hydrodynamics for space-time evolution of the quark gluon plasma phase and a hadronic transport model for the hadronic matter. We find that the effect of eccentricity fluctuation is modest in semicentral Au+Au collisions but significantly enhances v2 in Cu+Cu collisions.
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