The hot non-perturbative gluon plasma is an almost ideal colored liquid

Abstract

We study properties of a gluon plasma above the critical temperature $T_c$ in a generalized quasi-particle approach with a Lorentz spectral function. The model parameters are determined by a fit of the entropy $s$ to lattice QCD data. The effective degrees of freedom are found to be rather heavy and of a sizeable width. With the spectral width being closely related to the interaction rate, we find a large effective cross section, which is comparable to the typical distance squared of the quasiparticles. This suggests that the system should be viewed as a liquid as also indicated by an estimate of the plasma parameter $\Gamma$. Furthermore, within the quasiparticle approach we find a very low viscosity to entropy ratio, $\eta /s\sim 0.2$ for $T>1.05T_c$, supporting the recent conjecture of an almost ideal quark-gluon liquid seen at RHIC.

arXiv comment4 pages, 2 eps figures, published version

References in corpus (32)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• Transport coefficients in high temperature gauge theories: (II) Beyond leading log
• Quark Mass and Flavour Dependence of the QCD Phase Transition
• Why does the Quark-Gluon Plasma at RHIC behave as a nearly ideal fluid ?
• Effective Kinetic Theory for High Temperature Gauge Theories
• Approximately self-consistent resummations for the thermodynamics of the quark-gluon plasma. I. Entropy and density
• Transport Coefficients of Gluon Plasma
• Towards a Theory of Binary Bound States in the Quark-Gluon Plasma
• Massive gluons and quarks and the equation of state obtained from SU(3) lattice QCD
• The Equation of State of Deconfined Matter at Finite Chemical Potential in a Quasiparticle Description
• Strangeness dynamics and transverse pressure in relativistic nucleus-nucleus collisions
• Transport coefficients, spectral functions and the lattice
• From QCD lattice calculations to the equation of state of quark matter
• Equation of state for pure SU(3) gauge theory with renormalization group improved action
• Open charm and charmonium production at relativistic energies
• Hadronic observables from SIS to SPS energies - anything strange with strangeness ?
• Shear Viscosity in the O(N) Model
• Temporal quark and gluon propagators: measuring the quasiparticle masses
• Suppression of high transverse momentum hadrons at RHIC by (pre-) hadronic final state interactions
• HTL quasiparticle models of deconfined QCD at finite chemical potential
• HTL Resummation of the Thermodynamic Potential
• Parton Interaction Rates in the Quark-Gluon Plasma
• Hard gluon damping in hot QCD
• QCD Equations of State and the QGP Liquid Model
• The \bar q q Bound States and Instanton Molecule at T >~ T_c
• Erratum "The Quark-Gluon-Plasma Liquid"
• Equation of state of deconfined matter within dynamical quasiparticle description
• Viscosity and Thermalization
• Elliptic flow and freezeout from the parton cascade MPC
• Hard parton damping in hot QCD
• Chemical Equilibration in Relativistic Heavy Ion Collisions
• Jet quenching by (pre--)hadronic final state interactions at RHIC

Cited by in corpus (144)

• Parton-Hadron-String Dynamics: an off-shell transport approach for relativistic energies
• Perfect Fluidity of the Quark Gluon Plasma Core as Seen through its Dissipative Hadronic Corona
• Parton transport and hadronization from the dynamical quasiparticle point of view
• Parton-Hadron-String Dynamics at Relativistic Collider Energies
• From Kadanoff-Baym dynamics to off-shell parton transport
• Relativistic Heavy-Ion Collisions within 3-Fluid Hydrodynamics: Hadronic Scenario
• Shear Viscosity of a strongly interacting system: Green-Kubo vs. Chapman-Enskog and Relaxation Time Approximation
• Transport coefficients from the Nambu-Jona-Lasinio model for $SU(3{)}_f$
• Recent thermodynamic results from lattice QCD analyzed within a quasi-particle model
• Transport coefficients from the Nambu-Jona-Lasinio model for $SU(3{)}_f$
• Hydrodynamic Approaches in Relativistic Heavy Ion Reactions
• Dynamics of Quark-Gluon-Plasma Instabilities in Discretized Hard-Loop Approximation
• Effective QCD and transport description of dilepton and photon production in heavy-ion collisions and elementary processes
• Electrical Conductivity of Hot QCD Matter
• Dynamical quasiparticles properties and effective interactions in the sQGP
• Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) -- A Novel Microscopic N-Body Transport Approach for Heavy-Ion Collisions, Dynamical Cluster Formation and Hypernuclei Production
• A Family of Equations of State Based on Lattice QCD: Impact on Flow in Ultrarelativistic Heavy-Ion Collisions
• Viscosity of strongly interacting quantum fluids: spectral functions and sum rules
• QCD thermodynamics and confinement from a dynamical quasiparticle point of view
• Dynamical phase trajectories for relativistic nuclear collisions
• Shear and bulk viscosities of the gluon plasma in a quasiparticle description
• Non-extensive statistical effects in high-energy collisions
• Shear viscosity and damping for a Fermi gas in the unitarity limit
• Effective matrix model for deconfinement in pure gauge theories
• Hadronic and partonic sources of direct photons in relativistic heavy-ion collisions
• A model of the effect of collisions on QCD plasma instabilities
• Viscosity and Thermal Relaxation for a resonantly interacting Fermi gas
• Open and hidden charm in proton-nucleus and heavy-ion collisions
• Cool baryon and quark matter in holographic QCD
• Holographic QCD in the Veneziano limit and neutron stars
• Shear and bulk viscosities of strongly-interacting 'infinite' parton-hadron matter within the parton-hadron-string transport approach
• Hadronic Modes and Quark Properties in the Quark-Gluon Plasma
• Calculation of shear viscosity using Green-Kubo relations within a parton cascade
• Azimuthal anisotropies for Au+Au collisions in the parton-hadron transient energy range
• Viscosity coefficients for hadron and quark-gluon phases
• Analysis of dilepton production in Au+Au collisions at sqrt(s_NN)=200 GeV within the Parton-Hadron-String Dynamics (PHSD) transport approach
• The QCD collisional energy loss revised
• Electric and magnetic response of hot QCD matter
• Holographic modeling of nuclear matter and neutron stars
• Dilepton production in nucleus-nucleus collisions at top SPS energy within the Parton-Hadron-String Dynamics (PHSD) transport approach
• Small shear viscosity in the semi quark gluon plasma
• Charge-dependent directed flow in asymmetric nuclear collisions
• Viscosities in the Gluon-Plasma within a Quasiparticle Model
• Gravitational Waves from Dark Yang-Mills Sectors
• Are there hadronic bound states above the QCD transition temperature?
• Transport coefficients for the hot quark-gluon plasma at finite chemical potential ${\mu }_B$
• Electrical neutrality and pion modes in the two flavor PNJL model
• Rise of azimuthal anisotropies as a signature of the Quark-Gluon-Plasma in relativistic heavy-ion collisions
• A dynamical quasiparticle approach for the Quark-Gluon-Plasma bulk and transport properties
• What Do Electromagnetic Plasmas Tell Us about Quark-Gluon Plasma?
• In-medium effects in strangeness production in heavy-ion collisions at (sub-)threshold energies
• Hard thermal loops, to quadratic order, in the background of a spatial 't Hooft loop
• Quark-Gluon Matter
• Polyakov Loop and Gluon Quasiparticles in Yang-Mills Thermodynamics
• Transport coefficients in large N_f gauge theories with massive fermions
• Energy Loss of Gluons, Baryons and k-Quarks in an N=4 SYM Plasma
• Dilepton production in proton-proton and Pb+Pb collisions at sqrt(s_NN)=2.76 TeV
• Quark-to-gluon composition of the quark-gluon plasma in relativistic heavy-ion collisions
• Spectral and Transport Properties of Quark-Gluon Plasma in a Nonperturbative Approach
• Percolation of Color Sources and the Shear Viscosity of the QGP in Central A-A Collisions at RHIC and LHC Energies
• De-Confinement in high multiplicity proton-proton collisions at LHC energies
• Dynamical equilibration of strongly interacting "infinite" parton matter within the parton-hadron-string dynamics transport approach
• Dilepton and photon production in the presence of a nontrivial Polyakov loop
• Shear viscosity and electric conductivity of a hot and dense QGP with a chiral phase transition
• Effective degrees of freedom of the Quark-Gluon Plasma
• Diffusion coefficient matrix of the strongly interacting quark-gluon plasma
• Thermodynamics of Quasi-Particles at Finite Chemical Potential
• Quasiparticle Model of Quark-Gluon Plasma at Imaginary Chemical Potential
• Strongly Coupled Quark Gluon Plasma (SCQGP)
• Dynamical mechanisms for deuteron production at mid-rapidity in relativistic heavy-ion collisions from SIS to RHIC energies
• Collisional energy loss above the critical temperature in QCD
• Flavor Diagonal and Off-Diagonal Susceptibilities in a Quasiparticle Model of the Quark-Gluon Plasma
• Quark Flavour Dependence of the Shear Viscosity in a Quasiparticle Model
• Topological transport of deconfined hedgehogs in magnets
• Shear viscosity and chemical equilibration of the QGP
• Dilepton production by dynamical quasiparticles in the strongly interacting quark gluon plasma
• Baryon-antibaryon annihilation and reproduction in relativistic heavy-ion collisions
• Renormalized Linear Kinetic Theory as Derived from Quantum Field Theory - a novel diagrammatic method for computing transport coefficients -
• Shear and bulk viscosities for pure glue matter
• Deep-learning quasi-particle masses from QCD equation of state
• Hadron melting and QCD thermodynamics
• Shear viscosity of the Quark-Gluon Plasma from a virial expansion
• The quark susceptibility in a generalized dynamical quasiparticle model
• Complex Plasmas as a Model for the Quark-Gluon-Plasma Liquid
• Analytical study of a gas of gluonic quasiparticles at high temperature: effective mass, pressure and trace anomaly
• Shear Viscosity of Quark Matter
• Beta-functions for a SU(2) Matrix Model in 2 + epsilon Dimensions
• Isospin splitting of nucleon effective mass and shear viscosity of nuclear matter
• Dilepton production in a schematic causal viscous hydrodynamics
• QCD over $T_c$: hadrons, partons and continuum
• Properties of the QGP created in heavy-ion collisions
• Exploring jet transport coefficients by elastic scattering in the strongly interacting quark-gluon plasma
• Non-universal lower bound for the shear viscosity to entropy density ratio
• Equation of state for distributed mass quark matter
• The mass distribution of quark matter
• Collisional jet quenching becomes probable
• Structure Functions and Pair Correlations of the Quark-Gluon Plasma
• Relaxation time ansatz and shear and bulk viscosities of gluon matter
• Dileptons from the strongly-interacting Quark-Gluon Plasma within the Parton-Hadron-String-Dynamics (PHSD) approach
• Specific viscosity of neutron-rich nuclear matter from a relaxation time approach
• Thermodynamics of the Quark-Gluon Plasma in Terms of Quasiparticles and Polyakov Line Condensates
• QCD equation of state in a virial expansion
• Nuclear and Quark Matter at High Temperature
• Collective Phenomena in the Non-Equilibrium Quark-Gluon Plasma
• Quasi-Particle Degrees of Freedom versus the Perfect Fluid as Descriptors of the Quark-Gluon Plasma
• Shear viscosity of the ${\Phi }^4$ theory from classical simulation
• Inelastic and elastic parton scatterings in the strongly interacting quark-gluon plasma
• Directed flow as effect of transient matter rotation in hadron and nucleus collisions
• Microcausality in strongly interacting fields
• Rethinking the QCD collisional energy loss
• Strangeness production within Parton-Hadron-String Dynamics (PHSD)
• Viscosity of hadron matter within relativistic mean-field based model with scaled hadron masses and couplings
• Real-time observables from Euclidean thermal correlation functions
• Glueballs, gluon condensate, and pure glue QCD below T_c
• Consistent approach to study gluon quasi-particles
• HTL approach to the viscosity of quark plasma
• Heavy-Light Susceptibilities in a Strongly Coupled Quark-Gluon Plasma
• Non-Abelian color fields from relativistic color charge configurations in the classical limit
• Shear and bulk viscosity of quark-gluon plasma with Gribov gluons and quasiparticle quarks
• High-energy heavy-ions physics: from RHIC to LHC
• Charged scalar quasi-normal modes for higher-dimensional Born-Infeld dilatonic black holes with Lifshitz scaling
• QCD at finite chemical potential in and out-of equilibrium
• Collective properties of nucleus-nucleus collisions from AGS to LHC energies
• A non-abelian quasi-particle model for gluon plasma
• Shear viscosity over entropy density ratio with extended quasi-particles
• Evolution of the moments of multiplicity distributions
• Shear viscosity of nuclear matter in the spinodal region
• Properties of the partonic phase at RHIC within PHSD
• Dilepton production from SIS to LHC energies
• Exploring the partonic phase at finite chemical potential in and out-of equilibrium
• Jet transport coefficients by elastic and radiative scatterings in the strongly interacting quark-gluon plasma
• Parton-hadron dynamics in heavy-ion collisions
• Hadronization and chirality in strongly interacting partonic matter - the future of the RHIC program
• Transport properties and equation-of-state of hot and dense QGP matter near the critical end-point in the phenomenological dynamical quasi-particle model
• Quark Stars: Features and Findings
• Inhomogeneous phase of a Gluon Plasma at finite temperature and density
• Transport properties of a charged hot spot in an external electromagnetic field
• Quasi-particle and matrix models of the semi Quark Gluon Plasma
• The QGP phase in relativistic heavy-ion collisions
• Covariant transport approach for strongly interacting partonic systems
• Summary of theoretical contributions
• The quest for the quark-gluon plasma from the perspective of dynamical models of relativistic heavy-ion collisions
• Exploring jet transport coefficients by elastic and radiative scatterings in the strongly interacting quark-gluon plasma
• The QGP dynamics in relativistic heavy-ion collisions