Splitting of elliptic flow in a tilted fireball

Abstract

The splitting of elliptic flow measured in different regions of the momentum space of produced hadrons has been recently studied in transport models and proposed as a sensitive probe of the angular momentum carried by the fireball produced in a relativistic heavy ion collision. The initial state angular momentum also gives rise to rapidity odd directed flow which has been measured. We consider a relativistic hydrodynamic framework with the initial matter distribution suitably calibrated to describe the observed directed flow and apply it to study the spilt in the elliptic flow. Our study suggests that the split in the elliptic flow is mostly driven by directed and triangular flows and may be used to constrain models of initial state rapidity distribution of matter in the fireball.

References in corpus (50)

• The equation of state in (2+1)-flavor QCD
• 3+1D hydrodynamic simulation of relativistic heavy-ion collisions
• Globally Polarized Quark-gluon Plasma in Non-central A+A Collisions
• Collective flow and two-pion correlations from a relativistic hydrodynamic model with early chemical freeze out
• Angular momentum conservation in heavy ion collisions at very high energy
• Measurements of Higher-Order Flow Harmonics in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• The production of photons in relativistic heavy-ion collisions
• Fluctuations and Correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model
• Event-by-event shape and flow fluctuations of relativistic heavy-ion collision fireballs
• The significance of the fragmentation region in ultrarelativistic heavy ion collisions
• Higher flow harmonics from (3+1)D event-by-event viscous hydrodynamics
• Spin Alignment of Vector Mesons in Non-central A+A Collisions
• Charge separation relative to the reaction plane in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Study of Lambda polarization in relativistic nuclear collisions at sqrt{s}_NN = 7.7-200 GeV
• Polarization probes of vorticity in heavy ion collisions
• A study of vorticity formation in high energy nuclear collisions
• Centrality and pseudorapidity dependence of elliptic flow for charged hadrons in Au+Au collisions at sqrt(sNN) = 200 GeV
• Vortical fluid and $\Lambda$ spin correlations in high-energy heavy-ion collisions
• Lambda Polarization in Peripheral Heavy Ion Collisions
• Flow and interferometry in 3+1 dimensional viscous hydrodynamics
• Pseudorapidity distribution and decorrelation of anisotropic flow within CLVisc hydrodynamics
• Net baryon diffusion in fluid dynamic simulations of relativistic heavy-ion collisions
• Determining initial-state fluctuations from flow measurements in heavy-ion collisions
• Directed flow in ultrarelativistic heavy-ion collisions
• Hydrodynamic event-plane correlations in Pb+Pb collisions at sqrt(s)=2.76ATeV
• Equation of state at finite densities for QCD matter in nuclear collisions
• System-size independence of directed flow at the Relativistic Heavy-Ion Collider
• A collision geometry-based 3D initial condition for relativistic heavy-ion collisions
• Novel rapidity dependence of directed flow in high energy heavy ion collisions
• Torqued fireballs in relativistic heavy-ion collisions
• Diagonal and off-diagonal quark number susceptibilities at high temperatures
• Parameterization of Deformed Nuclei for Glauber Modeling in Relativistic Heavy Ion Collisions
• Long Range Forward-Backward Correlations and the Color Glass Condensate
• Decorrelation of anisotropic flows along the longitudinal direction
• 3D Jet Tomography of Twisted Strongly Coupled Quark Gluon Plasmas
• Elliptic Flow from Non-equilibrium Initial Condition with a Saturation Scale
• Longitudinal Decorrelation of Anisotropic Flows in Heavy-ion Collisions at the CERN Large Hadron Collider
• The STAR Event Plane Detector
• The torque effect and fluctuations of entropy deposition in rapidity in ultra-relativistic nuclear collisions
• The QGP shear viscosity -- elusive goal or just around the corner?
• Longitudinal fluctuations and decorrelations of anisotropic flows at the LHC and RHIC energies
• Longitudinal decorrelation measures of flow magnitude and event-plane angles in ultra-relativistic nuclear collisions
• Photon polarization as a probe for quark-gluon plasma dynamics
• Forward-backward multiplicity fluctuations in heavy nuclei collisions in the wounded nucleon model
• Longitudinal distribution of initial energy density and directed flow of charged particles in relativistic heavy-ion collisions
• Hydrodynamic modeling of pseudorapidity flow correlations in relativistic heavy-ion collisions and the torque effect
• A simple model for rapidity fluctuations in the initial state of ultra-relativistic heavy-ion collisions
• Two-particle correlations in pseudorapidity in a hydrodynamic model
• Directed flow of charged particles within idealized viscous hydrodynamics at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider
• Pseudorapidity profile of transverse momentum fluctuations in heavy ion collisions

Cited by in corpus (2)

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