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arXiv · 1112.4081

Effect of temperature-dependent eta/s on flow anisotropies

Harri Niemi·Gabriel S. Denicol·Pasi Huovinen·Etele Molnar·Dirk H. Rischke
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Abstract

We investigate the effects of a temperature-dependent shear viscosity over entropy density ratio eta/s on the flow anisotropy coefficients v_2 and v_4 in ultrarelativistic heavy-ion collisions at RHIC and LHC. We find that v_4 is more sensitive to the viscosity at low temperatures than v_2. At RHIC v_2 is mostly affected by the viscosity around the phase transition, but the larger the collision energy, the more the quark-gluon plasma viscosity affects v_2.

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Harri Niemi, Gabriel S. Denicol, Pasi Huovinen, Etele Molnar, Dirk H. Rischke. 2011-12-17. Effect of temperature-dependent eta/s on flow anisotropies. https://doi.org/10.5506/aphyspolbsupp.5.305

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