Quasiparticle Description of the QCD Plasma, Comparison with Lattice Results at Finite T and Mu

Abstract

We compare our 2+1 flavor, staggered QCD lattice results with a quasiparticle picture. We determine the pressure, the energy density, the baryon density, the speed of sound and the thermal masses as a function of T and ${\mu }_B$. For the available thermodynamic quantities the difference is a few percent between the results of the two approaches. We also give the phase diagram on the ${\mu }_B$--T plane and estimate the critical chemical potential at vanishing temperature.

arXiv comment13 pages, 10 figures

References in corpus (37)

• QCD at Finite Baryon Density: Nucleon Droplets and Color Superconductivity
• Color-Flavor Locking and Chiral Symmetry Breaking in High Density QCD
• Diquark Bose Condensates in High Density Matter and Instantons
• The QCD phase diagram for small densities from imaginary chemical potential
• Lattice determination of the critical point of QCD at finite T and μ
• The QCD thermal phase transition in the presence of a small chemical potential
• Hadron production in Au-Au collisions at RHIC
• Finite density QCD via imaginary chemical potential
• Color superconducting quark matter
• A new method to study lattice QCD at finite temperature and chemical potential
• The Condensed Matter Physics of QCD
• Free Energy of QCD at High Temperature
• The Pressure in 2, 2+1 and 3 Flavour QCD
• Approximately self-consistent resummations for the thermodynamics of the quark-gluon plasma. I. Entropy and density
• Massive gluons and quarks and the equation of state obtained from SU(3) lattice QCD
• The Three-Loop Free Energy for Pure Gauge QCD
• The Three-Loop Free Energy for High-Temperature QED and QCD with Fermions
• The Free Energy of Hot Gauge Theories with Fermions Through g^5
• Screened Perturbation Theory
• The Equation of State of Deconfined Matter at Finite Chemical Potential in a Quasiparticle Description
• The entropy of the QCD plasma
• The QCD equation of state at nonzero densities: lattice result
• From QCD lattice calculations to the equation of state of quark matter
• Self-consistent hard-thermal-loop thermodynamics for the quark-gluon plasma
• Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks
• How to resum long-distance contributions to the QCD pressure?
• On the Quasiparticle Description of Lattice QCD Thermodynamics
• Screened Perturbation Theory to Three Loops
• Thermodynamics of lattice QCD with two light quark flavours on a 16^3 x 8 lattice II
• QCD Equations of State and the QGP Liquid Model
• Lattice QCD Results at Finite Temperature and Density
• The quark mass and $\mu$ dependence of the QCD chiral critical point
• QCD phase diagram for small densities from simulations at imaginary mu
• The QCD equation of state at finite T and μ
• Imaginary chemical potential in QCD at finite temperature
• Thermal description of transverse-momentum spectra at RHIC
• How much is RHIC different from SPS? Comparison of the pT-spectra

Cited by in corpus (42)

• Phases of QCD: lattice thermodynamics and a field theoretical model
• Thermodynamics at Non-Zero Baryon Number Density: A Comparison of Lattice and Hadron Resonance Gas Model Calculations
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• QCD thermodynamics from an imaginary mu_B: results on the four flavor lattice model
• Thermodynamics of the PNJL model
• On the Apparent Convergence of Perturbative QCD at High Temperature
• Strangeness at high temperatures: from hadrons to quarks
• A Family of Equations of State Based on Lattice QCD: Impact on Flow in Ultrarelativistic Heavy-Ion Collisions
• The QCD equation of state near T_0 within a quasi-particle model
• HTL quasiparticle models of deconfined QCD at finite chemical potential
• Lattice QCD Constraints on the Nuclear Equation of State
• A quasi-particle description of $(2+1)$- flavor lattice QCD equation of state
• Single parameter quasi-particle model for QGP
• Transport coefficients of a hot QCD medium and their relative significance in heavy-ion collisions
• Quasiparticle Description of Hot QCD at Finite Quark Chemical Potential
• Equation of state of deconfined matter within dynamical quasiparticle description
• Thermal Relaxation, Electrical Conductivity and Charge Diffusion in a Hot QCD Medium
• On the formation of Hubble flow in Little Bangs
• Thermodynamics of Large-N_f QCD at Finite Chemical Potential
• Connecting neutron star observations to the high density equation of state of quasi-particle model
• Perturbative QCD at non-zero chemical potential: Comparison with the large-Nf limit and apparent convergence
• Covariant kinetic theory for effective fugacity quasi particle model and first order transport coefficients for hot QCD matter
• Collective excitations of hot QCD medium in a quasi-particle description
• Quasiparticle Model of Quark-Gluon Plasma at Imaginary Chemical Potential
• Collective excitations of a hot anisotropic QCD medium with Bhatnagar-Gross-Krook collisional kernel within an effective description
• Transport properties of anisotropically expanding quark-gluon plasma within a quasi-particle model
• On the bulk viscosity of anisotropically expanding hot QCD plasma
• Lattice QCD Constraints on Hybrid and Quark Stars
• A thermodynamically consistent quasi-particle model without temperature-dependent infinity of the vacuum zero point energy
• A thermodynamically consistent quasi-particle model without density-dependent infinity of the vacuum zero point energy
• Quarkonia and Quark Drip Lines in Quark-Gluon Plasma
• Lattice QCD at finite T and μ
• Quasi-particle model of strongly interacting matter
• QCD equation of state and the structure of neutron stars in NJL model
• Nuclear and Quark Matter at High Temperature
• Heavy Quarkonia and Quark Drip Lines in Quark-Gluon Plasma
• The non-perturbative analytical equation of state for the gluon matter. I
• Baryon Number Fluctuations in Quasi-particle Model
• Lattice QCD at finite density: imaginary chemical potential
• Phase structures of neutral dense quark matter and application to strange stars
• Instanton-inspired Model of QCD Phase Transition and Bubble Dynamics