Viscosity information from relativistic nuclear collisions: how perfect is the fluid observed at RHIC?
By Paul Romatschke, Ulrike Romatschke. Physical Review Letters, 2007
763 citations recorded by the source corpus.
Relativistic viscous hydrodynamic fits to Brookhaven Relativistic Heavy Ion Collider data on the centrality dependence of multiplicity, transverse, and elliptic flow for square root s = 200 GeV Au+Au collisions are presented. For standard (Glauber-type) initial conditions, while data on the integrated elliptic flow coefficient v(2) are consistent with a ratio of viscosity over entropy density up to eta/s approximately 0.16, data on minimum bias v(2) seem to favor a much smaller viscosity over entropy ratio, below the bound from the anti-de Sitter conformal field theory conjecture. Some caveats on this result are discussed.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/186920272c3160d780190385ec6fa191005f2e61
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In Nuclear and High Energy Physics
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- R. Myers
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Citations in the corpus
- Effect of curvature squared corrections in AdS on the viscosity of the dual gauge theory (2007, background): “In addition to these fundamental questions, the results may turn relevant to the quark-gluon plasma, whose viscosity is measured to be close to the bound [17] (and possibly violates the bound [18, 19]).”
- Relativistic Fluid Dynamics in and out of Equilibrium (2017, methodology): “Several different algorithms to obtain solutions to relativistic viscous hydrodynamics exist [30, 31, 33, 38, 297–301], three of which will be discussed in more detail below.”