Elliptic and Triangular flow in asymmetric heavy-ion collisions

Details Elliptic and Triangular flow in asymmetric heavy-ion collisions Elliptic and Triangular flow in asymmetric heavy-ion collisions

2011-11-22

arxiv.org/abs/1111.5095v1

Physics

Nuclear Physics

Nuclear Experiment

5 Pages, 12 Figures. Accepted for publication in Physical Review C

Scientific paper

We present a study of the elliptic (v2) and triangular (v3) flow and their corresponding eccentricity fluctuations for asymmetric (Au+Ag, Au+Cu and Au+Si) collisions at \sqrt_NN = 200 GeV. These are compared to the corresponding results from symmetric (Au+Au and Cu+Cu) collisions at the same energy. The study which is carried out using a multi-phase transport (AMPT) model shows that triangularity (\epsilon_3), fluctuations in triangularity and v3 do not show much variation for the different colliding ion sizes studied. However the eccentricity (\epsilon_2), fluctuations in eccentricity and v2 shows a strong dependence on colliding ion size for a given number of participating nucleons. Our study thus indicates that asymmetric heavy-ion collisions could be used to constrain models dealing with flow fluctuations in heavy-ion collisions.

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