Pseudorapidity correlations in heavy ion collisions from viscous fluid dynamics

Abstract

We demonstrate by explicit calculations in 3+1 dimensional viscous relativistic fluid dynamics how two-particle pseudorapidity correlation functions in heavy ion collisions at the LHC and RHIC depend on the number of particle producing sources and the transport properties of the produced medium. In particular, we present results for the Legendre coefficients of the two-particle pseudorapidity correlation function in Pb+Pb collisions at 2760 GeV and Au+Au collisions at 200 GeV from viscous hydrodynamics with three dimensionally fluctuating initial conditions. Our results suggest that these coefficients provide important constraints on initial state fluctuations and the transport properties of the quark gluon plasma.

5 pages, 5 figures, Corrected Eq.(8) and all figures to agree with the corrected definition used by ATLAS, conclusions remain unchanged, added references

References in corpus (14)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• LHAPDF6: parton density access in the LHC precision era
• Glauber Modeling in High Energy Nuclear Collisions
• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• Fully integrated transport approach to heavy ion reactions with an intermediate hydrodynamic stage
• Event-by-event gluon multiplicity, energy density and eccentricities at RHIC and LHC
• Phobos results on charged particle multiplicity and pseudorapidity distributions in Au+Au, Cu+Cu, d+Au, and p+p collisions at ultra-relativistic energies
• GLISSANDO: GLauber Initial-State Simulation AND mOre
• Transport Coefficients of Bulk Viscous Pressure in the 14-moment approximation
• Estimation of the shear viscosity at finite net-baryon density from A+A collision data at $\sqrt{s_{\mathrm{NN}}}=7.7-200$ GeV
• Longitudinal Decorrelation of Anisotropic Flows in Heavy-ion Collisions at the CERN Large Hadron Collider
• Longitudinal fluctuations of the fireball density in heavy-ion collisions
• Charge conservation and the shape of the ridge of two-particle correlations in relativistic heavy-ion collisions
• Relativistic Dissipative Hydrodynamic Equations at the Second Order for Multi-Component Systems with Multiple Conserved Currents

Cited by in corpus (30)

• Dynamical initial state model for relativistic heavy-ion collisions
• Pseudorapidity distribution and decorrelation of anisotropic flow within CLVisc hydrodynamics
• Net baryon diffusion in fluid dynamic simulations of relativistic heavy-ion collisions
• Equation of state at finite densities for QCD matter in nuclear collisions
• Relativistic hydrodynamics in heavy-ion collisions: general aspects and recent developments
• Moving forward to constrain the shear viscosity of QCD matter
• 3-D Glasma initial state for relativistic heavy ion collisions
• Decorrelation of anisotropic flows along the longitudinal direction
• Large directed flow of open charm mesons probes the three dimensional distribution of matter in heavy ion collisions
• Wounded quarks in A+A, p+A, and p+p collisions
• The QCD phase diagram and Beam Energy Scan physics: a theory overview
• Phenomenological Consequences of Enhanced Bulk Viscosity Near the QCD Critical Point
• Constraints on rapidity-dependent initial conditions from charged particle pseudorapidity densities and two-particle correlations
• QCD Equation of State at Finite Chemical Potentials for Relativistic Nuclear Collisions
• A hybrid approach to relativistic heavy-ion collisions at the RHIC BES energies
• Longitudinal decorrelation measures of flow magnitude and event-plane angles in ultra-relativistic nuclear collisions
• A simple model for rapidity fluctuations in the initial state of ultra-relativistic heavy-ion collisions
• Constraining the equation of state with identified particle spectra
• Partial correlation analysis method in ultra-relativistic heavy-ion collisions
• Pseudorapidity profile of transverse momentum fluctuations in heavy ion collisions
• Energy-momentum tensor of the dilute (3+1)D Glasma
• New insights from 3D simulations of heavy ion collisions
• Forward-backward multiplicity fluctuations in ultra-relativistic nuclear collisions with wounded quarks and fluctuating strings
• Rapidity dependence of transverse-momentum multiplicity correlations
• Initial conditions for nuclear collisions: theory overview
• Two-particle rapidity correlations between relativistic particles in central collisions of ${}^{197}$Au nuclei in emulsion at 11.6 A GeV/c
• QCD equation of state at finite densities for nuclear collisions
• Rapidity correlations in the RHIC Beam Energy Scan Data
• 3-D Glasma initial state from small-x evolution
• Justification of Landau Hydrodynamic-Tube Model in Central Relativistic Heavy-Ion Collisions