Initial state fluctuations and higher harmonic flow in heavy-ion collisions

Abstract

A framework combining Yang-Mills dynamics of the pre-equilibrium glasma with relativistic viscous hydrodynamic evolution of the quark-gluon plasma and hadron gas phases is presented. Event-by-event fluctuations of nucleon positions and color charges are taken into account, leading to negative binomial fluctuations of gluon multiplicities. Experimental anisotropic flow coefficients v2-v5 of charged hadron distributions in heavy-ion collisions at the Large Hadron Collider are well described. Furthermore, event-by-event distributions of v2, v3 and v4 measured by the ATLAS collaboration are reproduced.

4 pages, 2 figures, submitted to the proceedings of the 23rd International Conference on Ultrarelativistic Nucleus-Nucleus Collisions, Quark Matter 2012, August 13-18, 2012, Washington DC

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• QGP viscosity at RHIC and the LHC - a 2012 status report
• Possible Evidence for Radial Flow of Heavy Mesons in d+Au Collisions
• Elucidating the event-by-event flow fluctuations in heavy-ion collisions via the event shape selection technique
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• Basic phenomenology for relativistic heavy-ion collisions
• Introductory Overview of Quark Matter 2012
• QCD bulk thermodynamics and conserved charge fluctuations with HISQ fermions
• Shear viscosity of classical Yang-Mills field
• Fluctuations of topological charge and chiral density in the early stage of high energy nuclear collisions
• Longitudinal hydrodynamics from event-by-event Landau initial conditions
• Initial fluctuations and power spectrum of flow anisotropies in relativistic heavy-ion collisions