Triangular flow in heavy ion collisions in a multiphase transport model

Abstract

We obtain a new set of parameters in a multiphase transport (AMPT) model that are able to describe both the charged particle multiplicity density and the elliptic flow measured in $\mathrm{Au}+\mathrm{Au}$ collisions at center-of-mass energy $\sqrt{{s}_{NN}}=200$ GeV at the Relativistic Heavy Ion Collider, although they still give somewhat softer transverse momentum spectra. We then use the model to predict the triangular flow due to fluctuations in the initial collision geometry and study its effect relative to those from other harmonic components of anisotropic flows on the dihadron azimuthal correlations in both central and midcentral collisions.