TIME EVOLUTION OF THE ANISOTROPIES OF THE HYDRODYNAMICALLY EXPANDING SQGP
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Publication:5272818
DOI10.1142/9789813141704_0016zbMATH Open1365.81152arXiv1507.05005OpenAlexW3017939205MaRDI QIDQ5272818
Author name not available (Why is that?)
Publication date: 4 July 2017
Published in: (Search for Journal in Brave)
Abstract: In high energy heavy ion collisions of RHIC and LHC, a strongly interacting quark gluon plasma (sQGP) is created. This medium undergoes a hydrodynamic evolution, before it freezes out to form a hadronic matter. The initial state of the sQGP is determined by the initial distribution of the participating nucleons and their interactions. Due to the finite number of nucleons, the initial distribution fluctuates on an event-by-event basis. The transverse plane anisotropy of the initial state can be translated into a series of anisotropy coefficients or eccentricities: second, third, fourth-order anisotropy etc. These anisotropies then evolve in time, and result in measurable momentum-space anisotropies, to be measured with respect to their respective symmetry planes. In this paper we investigate the time evolution of the anisotropies. With a numerical hydrodynamic code, we analyze how the speed of sound and viscosity influence this evolution.
Full work available at URL: https://arxiv.org/abs/1507.05005
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