Energy and system size dependence of charged particle elliptic flow and $v_2/\eps$ scaling

Abstract

We report measurements of charged particle elliptic flow %($v_2$) at mid-rapidity in Au+Au and Cu+Cu collisions at $\sqrt{s_{{}_{NN}}}=62$ and 200 GeV. Using correlations between main STAR TPC and Forward TPCs ensures minimal bias due to non-flow effects. We further investigate the effect of flow fluctuations on $v_2/\eps$ scaling studying initial geometry eccentricity fluctuations in Monte-Carlo Glauber model, consistent with STAR direct measurements of elliptic flow fluctuations. It is found that accounting for the effect of flow fluctuations improves $v_2/\eps$ scaling.

arXiv comment4 pages, Quark Matter 2006 proceedings

References in corpus (14)

• Methods for analyzing anisotropic flow in relativistic nuclear collisions
• Radial and elliptic flow at RHIC: further predictions
• Elliptic flow in Au+Au collisions at sqrt(s_NN) = 130 GeV
• Elliptic flow at large transverse momenta from quark coalescence
• Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at s(NN)**(1/2) = 200-GeV
• Anisotropic transverse flow and the quark-hadron phase transition
• Elliptic flow from two- and four-particle correlations in Au + Au collisions at sqrt{s_{NN}} = 130 GeV
• Directed and elliptic flow of charged pions and protons in Pb+Pb collisions at 40 and 158A GeV
• Identified Particle Elliptic Flow in Au+Au Collisions at $\sqrt{s_{{}_{NN}}}=130$ GeV}
• Anisotropic flow
• The physics of the centrality dependence of elliptic flow
• System size, energy and pseudorapidity dependence of directed and elliptic flow at RHIC
• Elliptic flow fluctuations in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV
• Energy and system size dependence of elliptic flow: using rapidity gaps to suppress non-flow contribution

Cited by in corpus (39)

• Observation of charge-dependent azimuthal correlations and possible local strong parity violation in heavy ion collisions
• Multiplicity scaling in ideal and viscous hydrodynamics
• Centrality dependence of charged hadron and strange hadron elliptic flow from sqrt(s_NN) = 200 GeV Au+Au collisions
• Parton transport and hadronization from the dynamical quasiparticle point of view
• The centrality dependence of elliptic flow, the hydrodynamic limit, and the viscosity of hot QCD
• From Kadanoff-Baym dynamics to off-shell parton transport
• Directed flow in ultrarelativistic heavy-ion collisions
• System-size independence of directed flow at the Relativistic Heavy-Ion Collider
• Azimuthal anisotropies for Au+Au collisions in the parton-hadron transient energy range
• Collective phenomena in non-central nuclear collisions
• Higher harmonic flow coefficients of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Predictions of elliptic flow and nuclear modification factor from 200 GeV U + U collisions at RHIC
• Varying the chiral magnetic effect relative to flow in a single nucleus-nucleus collision
• Hydrodynamic radial and elliptic flow in heavy-ion collisions from AGS to LHC energies
• Anisotropic flows from colour strings: Monte-Carlo simulations
• Particle production azimuthal asymmetries in a clustering of color sources model
• Experimental study of local strong parity violation in relativistic nuclear collisions
• Hydrodynamic predictions for Pb+Pb collisions at 2.76 TeV
• Elliptic flow fluctuations and correlations in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV
• Elliptic flow from color strings
• Selection of special orientations in relativistic collisions of deformed heavy nuclei
• Elliptic Flow: A Study of Space-Momentum Correlations In Relativistic Nuclear Collisions
• The anisotropic flow coefficients $v_2$ and $v_4$ in Au+Au collisions at RHIC
• Causal relativistic hydrodynamics for viscous fluids
• Elliptic flow fluctuations in heavy ion collisions at RHIC and the perfect fluid hypothesis
• Incident-energy and system-size dependence of directed flow
• Traces of non-equilibrium dynamics in relativistic heavy-ion collisions
• Elliptic Flow and Dissipation in Heavy-Ion Collisions at E_{lab} = (1--160)A GeV
• Interplay of the emission from thermal and direct sources in relativistic heavy ion collisions
• Knudsen number, ideal hydrodynamic limit for elliptic flow and QGP viscosity in $\sqrt{s}$=62 and 200 GeV Cu+Cu/Au+Au collisions
• Initial eccentricity and constituent quark number scaling of elliptic flow in ideal and viscous dynamics
• Collective Dynamics at RHIC
• Elliptic flow of charged particles at midrapidity relative to the spectator plane in Pb-Pb and Xe-Xe collisions
• Can the energy dependence of elliptic flow reveal the QGP phase transition?
• Anisotropic flow: Achievements, Difficulties, Expectations
• The QGP phase in relativistic heavy-ion collisions
• Causal dissipative hydrodynamics for heavy ion collisions
• Parton-hadron dynamics in heavy-ion collisions
• $J/\psi$ production and elliptic flow parameter $v_2$ at LHC energy