Global collective flow in heavy ion reactions from the beginnings to the future

Csernai, László Pál and Stocker, H. (2014) Global collective flow in heavy ion reactions from the beginnings to the future. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 41 (12). ISSN 0954-3899

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Abstract

Fluid dynamical models preceded the first heavy ion accelerator experiments, and led to the main trend of this research since then. In recent years fluid dynamical processes became a dominant direction of research in high energy heavy ion reactions. The Quark-gluon Plasma formed in these reactions has low viscosity, which leads to significant fluctuations and turbulent instabilities. One has to study and separate these two effects, but this is not done yet in a systematic way. Here we present a few selected points of the early developments, the most interesting collective flow instabilities, their origins, their possible ways of detection and separation form random fluctuations arising from different origins, among these the most studied is the randomness of the initial configuration in the transverse plane.

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