Anisotropic flow decorrelation in heavy-ion collisions with event-by-event viscous hydrodynamics

Abstract

Decorrelation of the elliptic flow in rapidity is calculated within a hybrid approach which includes event-by-event viscous fluid dynamics and final state hadronic cascade model. The simulations are performed for Au+Au collisions at center-of-mass collision energies of 27 and 200 GeV per nucleon pair, as well as various colliding systems at 72 GeV per nucleon pair. Initial conditions determined by an extended Monte Carlo Glauber model show better agreement with experimental data than initial conditions from the UrQMD transport model. We show how the observed decorrelation is connected with the decorrelation of initial state spatial anisotropies. We also study how the effect is increased by the final state hadronic cascade.

arXiv comment12 pages, 21 figures

References in corpus (39)

• Microscopic Models for Ultrarelativistic Heavy Ion Collisions
• Space-time evolution of bulk QCD matter
• Event-by-event distributions of azimuthal asymmetries in ultrarelativistic heavy-ion collisions
• Phobos results on charged particle multiplicity and pseudorapidity distributions in Au+Au, Cu+Cu, d+Au, and p+p collisions at ultra-relativistic energies
• Centrality dependence of charged hadron and strange hadron elliptic flow from sqrt(s_NN) = 200 GeV Au+Au collisions
• Effects of initial flow velocity fluctuation in event-by-event (3+1)D hydrodynamics
• Centrality and pseudorapidity dependence of elliptic flow for charged hadrons in Au+Au collisions at sqrt(sNN) = 200 GeV
• Evidence for transverse momentum and pseudorapidity dependent event plane fluctuations in PbPb and pPb collisions
• A 3+1 dimensional viscous hydrodynamic code for relativistic heavy ion collisions
• Particlization in hybrid models
• Event-by-event hydrodynamics and elliptic flow from fluctuating initial state
• Inclusive charged hadron elliptic flow in Au + Au collisions at $\sqrt{s_{NN}}$ = 7.7 - 39 GeV
• Estimation of the shear viscosity at finite net-baryon density from A+A collision data at $\sqrt{s_{\mathrm{NN}}}=7.7-200$ GeV
• Viscous QCD matter in a hybrid hydrodynamic+Boltzmann approach
• Pseudorapidity distribution and decorrelation of anisotropic flow within CLVisc hydrodynamics
• Physics Opportunities of a Fixed-Target Experiment using the LHC Beams
• GLISSANDO 2: GLauber Initial-State Simulation AND mOre..., ver. 2
• An effective chiral Hadron-Quark Equation of State
• Torqued fireballs in relativistic heavy-ion collisions
• Measurement of longitudinal flow de-correlations in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ and 5.02 TeV with the ATLAS detector
• Transverse-momentum fluctuations in relativistic heavy-ion collisions from event-by-event viscous hydrodynamics
• Decorrelation of anisotropic flows along the longitudinal direction
• 3D Jet Tomography of Twisted Strongly Coupled Quark Gluon Plasmas
• Longitudinal Decorrelation of Anisotropic Flows in Heavy-ion Collisions at the CERN Large Hadron Collider
• Constraints on rapidity-dependent initial conditions from charged particle pseudorapidity densities and two-particle correlations
• The torque effect and fluctuations of entropy deposition in rapidity in ultra-relativistic nuclear collisions
• A Fixed-Target Programme at the LHC: Physics Case and Projected Performances for Heavy-Ion, Hadron, Spin and Astroparticle Studies
• Longitudinal fluctuations and decorrelations of anisotropic flows at the LHC and RHIC energies
• Longitudinal correlation of the triangular flow event plane in a hybrid approach with hadron and parton cascade initial conditions
• Longitudinal flow decorrelations in Xe+Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44$ TeV with the ATLAS detector
• Longitudinal decorrelation measures of flow magnitude and event-plane angles in ultra-relativistic nuclear collisions
• Rapidity decorrelation of anisotropic flow caused by hydrodynamic fluctuations
• A method for studying the rapidity fluctuation and decorrelation of harmonic flow in heavy-ion collisions
• 3D Jet Tomography of the Twisted Color Glass Condensate
• Hydrodynamic modeling of pseudorapidity flow correlations in relativistic heavy-ion collisions and the torque effect
• Energy dependence of longitudinal flow decorrelation from STAR
• Pseudorapidity profile of transverse momentum fluctuations in heavy ion collisions
• Particle productions and anisotropic flows from the AMPT model for Cu+Au collisions at $\sqrt{s_{NN}}=200$ GeV
• A benchmark of initial state models for heavy-ion collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 27 and 62 GeV

Cited by in corpus (5)

• Factorization breaking for higher moments of harmonic flow
• Measuring differential flow angle fluctuations in relativistic nuclear collisions
• Symmetry plane correlations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Rapidity dependence of mean transverse momentum fluctuation and decorrelation in baryon-dense medium
• Random model of flow decorrelation