Influence of the shear viscosity of the 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 sqrt(s_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.

4 pages, 3 figures, version accepted for publication in Physical Review Letters, clarified the temperature regions and phases where elliptic flow is most sensitive to viscosity

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Cited by in corpus (58)

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• Collision Energy Dependence of Viscous Hydrodynamic Flow in Relativistic Heavy-Ion Collisions
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• Temperature dependence of $\eta /s$ of strongly interacting matter: effects of the equation of state and the parametric form of $(\eta /s)(T)$
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• Leading-order anisotropic hydrodynamics for systems with massive particles
• Hydrodynamics of anisotropic quark and gluon fluids
• The nucleon thermal width due to pion-baryon loops and its contribution in Shear viscosity
• Investigation of Heat Conductivity in Relativistic Systems using a Partonic Cascade
• Comparison of results from a 2+1D relativistic viscous hydrodynamic model to elliptic and hexadecapole flow of charged hadrons measured in Au-Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV
• Relativistic Boltzmann transport approach with Bose-Einstein statistics and the onset of gluon condensation
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• Seebeck effect in a thermal QCD medium in the presence of strong magnetic field
• Mini-jet quenching in a concurrent jet+hydro evolution and the non-equilibrium quark-gluon plasma
• Chromoelectric oscillations in a dynamically evolving anisotropic background
• Constraining $\eta /s$ through high-p${}_{\perp }$ theory and data
• Shear transport far from equilibrium via holography
• Effective shear and bulk viscosities for anisotropic flow
• Flow correlations from a hydrodynamics model with dynamical freeze-out and initial conditions based on perturbative QCD and saturation
• Relativistic Hydrodynamics on Graphic Cards
• Quark self-energy in an ellipsoidally anisotropic quark-gluon plasma
• Including off-diagonal anisotropies in anisotropic hydrodynamics
• Fast kinetic simulator for relativistic matter
• Building up the elliptic flow: analytical insights
• An improved anisotropic hydrodynamics ansatz
• Chirality dependence in charge and heat transport in thermal QCD
• Thermoelectric response of a weakly magnetized thermal QCD medium
• Extraction of the specific shear viscosity of quark-gluon plasma from two-particle transverse momentum correlations
• Pion interferometry at 200 GeV using anisotropic hydrodynamics
• Nonextensive hydrodynamics of boost-invariant plasmas
• Second order relativistic viscous hydrodynamics within an effective description of hot QCD medium
• Probing the non-equilibrium dynamics of hot and dense QCD with dileptons
• Anisotropic Flow and Jet Quenching in Relativistic Nuclear Collisions
• Kaonic Hanbury-Brown-Twiss radii at 200 GeV and 5.02 TeV
• $\eta (T)/s(T)$ and collective flow in chiral hydrodynamics
• Dynamical scheme for hadronization with first-order phase transition
• Deformations of the AdS-Schwarzschild black brane and the shear viscosity of the quark-gluon plasma
• Exploring sQGP and Small Systems
• Far-from-equilibrium attractors with a realistic non-conformal equation of state
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• The $v_3^{1/3}/v_2^{1/2}$ ratio in PbAu collisions at $\sqrt{s_{\mathrm{NN}}}=$ 17.3 GeV: a hint of a hydrodynamic behavior