Components of the elliptic flow in Pb-Pb collisions at 2.76 TeV

Abstract

We calculate the elliptic flow of charged particles in Pb-Pb collisions at 2.76 TeV in relativistic viscous hydrodynamics. The recent data of the ALICE Collaboration on the elliptic flow as function of the centrality can be very well described using the hydrodynamic expansion of a fluid with a small shear viscosity eta/s=0.08. The elliptic flow as function of the transverse momentum shows systematic deviations from a hydrodynamic behavior in the small momenta region pt<800MeV. It indicates that a non-negligible contribution of non-thermalized particles from jet fragmentation is present.

References in corpus (4)

• Therminator: Thermal heavy-Ion generator
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• Exposing the Noncollectivity in Elliptic Flow
• Initial indications for the production of a strongly coupled plasma in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV

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• Shear-bulk coupling in nonconformal hydrodynamics
• Anisotropic hydrodynamics for conformal Gubser flow
• Leading-order anisotropic hydrodynamics for systems with massive particles
• Hydrodynamics of anisotropic quark and gluon fluids
• Chromoelectric oscillations in a dynamically evolving anisotropic background
• Quark self-energy in an ellipsoidally anisotropic quark-gluon plasma
• Including off-diagonal anisotropies in anisotropic hydrodynamics
• Elliptic flow due to radiation in heavy-ion collisions