Abstract
In the Israel–Stewart theory of second-order hydrodynamics, we have analysed the recent PHENIX data on charged particles elliptic flow in Au+Au collisions. PHENIX data demand more viscous fluid in peripheral collisions than in central collisions. Over a broad range of collision centrality (0–10% to 50–60%), the viscosity-to-entropy ratio (η/s) varies between 0 and 0.17.
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