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Title: Influence of Shear Viscosity of Quark-Gluon Plasma on Elliptic Flow in Ultrarelativistic Heavy-Ion Collisions

Abstract

We investigate the influence of a temperature-dependent shear viscosity over entropy density ratio {eta}/s on the transverse momentum spectra and elliptic flow of hadrons in ultrarelativistic heavy-ion collisions. We find that the elliptic flow in {radical}(s{sub NN})=200 GeV Au+Au collisions at RHIC is dominated by the viscosity in the hadronic phase and in the phase transition region, but largely insensitive to the viscosity of the quark-gluon plasma (QGP). At the highest LHC energy, the elliptic flow becomes sensitive to the QGP viscosity and insensitive to the hadronic viscosity.

Authors:
 [1]; ;  [2];  [1];  [1]
  1. Frankfurt Institute for Advanced Studies, Ruth-Moufang-Strasse 1, D-60438 Frankfurt am Main (Germany)
  2. Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main (Germany)
Publication Date:
OSTI Identifier:
21538370
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 21; Other Information: DOI: 10.1103/PhysRevLett.106.212302; (c) 2011 American Institute of Physics; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BROOKHAVEN RHIC; CERN LHC; COLLISIONS; DENSITY; ENTROPY; GEV RANGE 100-1000; HADRONS; HEAVY ION REACTIONS; PHASE TRANSFORMATIONS; QUARK MATTER; SHEAR; SPECTRA; TEMPERATURE DEPENDENCE; TRANSVERSE MOMENTUM; VISCOSITY; ACCELERATORS; CYCLIC ACCELERATORS; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HEAVY ION ACCELERATORS; LINEAR MOMENTUM; MATTER; NUCLEAR REACTIONS; PHYSICAL PROPERTIES; STORAGE RINGS; SYNCHROTRONS; THERMODYNAMIC PROPERTIES

Citation Formats

Niemi, H, Denicol, G S, Huovinen, P, Molnar, E, MTA-KFKI, Research Institute for Particle and Nuclear Physics, H-1525 Budapest, P.O. Box 49, Rischke, D H, and Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main. Influence of Shear Viscosity of Quark-Gluon Plasma on Elliptic Flow in Ultrarelativistic Heavy-Ion Collisions. United States: N. p., 2011. Web. doi:10.1103/PHYSREVLETT.106.212302.
Niemi, H, Denicol, G S, Huovinen, P, Molnar, E, MTA-KFKI, Research Institute for Particle and Nuclear Physics, H-1525 Budapest, P.O. Box 49, Rischke, D H, & Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main. Influence of Shear Viscosity of Quark-Gluon Plasma on Elliptic Flow in Ultrarelativistic Heavy-Ion Collisions. United States. https://doi.org/10.1103/PHYSREVLETT.106.212302
Niemi, H, Denicol, G S, Huovinen, P, Molnar, E, MTA-KFKI, Research Institute for Particle and Nuclear Physics, H-1525 Budapest, P.O. Box 49, Rischke, D H, and Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main. Fri . "Influence of Shear Viscosity of Quark-Gluon Plasma on Elliptic Flow in Ultrarelativistic Heavy-Ion Collisions". United States. https://doi.org/10.1103/PHYSREVLETT.106.212302.
@article{osti_21538370,
title = {Influence of Shear Viscosity of Quark-Gluon Plasma on Elliptic Flow in Ultrarelativistic Heavy-Ion Collisions},
author = {Niemi, H and Denicol, G S and Huovinen, P and Molnar, E and MTA-KFKI, Research Institute for Particle and Nuclear Physics, H-1525 Budapest, P.O. Box 49 and Rischke, D H and Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main},
abstractNote = {We investigate the influence of a temperature-dependent shear viscosity over entropy density ratio {eta}/s on the transverse momentum spectra and elliptic flow of hadrons in ultrarelativistic heavy-ion collisions. We find that the elliptic flow in {radical}(s{sub NN})=200 GeV Au+Au collisions at RHIC is dominated by the viscosity in the hadronic phase and in the phase transition region, but largely insensitive to the viscosity of the quark-gluon plasma (QGP). At the highest LHC energy, the elliptic flow becomes sensitive to the QGP viscosity and insensitive to the hadronic viscosity.},
doi = {10.1103/PHYSREVLETT.106.212302},
url = {https://www.osti.gov/biblio/21538370}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 21,
volume = 106,
place = {United States},
year = {2011},
month = {5}
}