Lattice QCD gluon propagators near transition temperature

Abstract

Landau gauge gluon propagators are studied numerically in the SU(3) gluodynamics as well as in the full QCD with the number of flavors $n_F=2$ using efficient gauge fixing technique. We compare these propagators at temperatures very close to the transition point in two phases : confinement and deconfinement. The electric mass $m_E$ has been determined from the momentum space longitudinal gluon propagator. Gribov copy effects are found to be rather strong in the gluodynamics, while in the full QCD case they are weak ("Gribov noise"). Also we analyse finite volume dependence of the transverse and longitudinal propagators.

9 pages, 7 figures

References in corpus (8)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• Chiral and deconfinement transition from correlation functions: SU(2) vs. SU(3)
• Infrared properties of propagators in Landau-gauge pure Yang-Mills theory at finite temperature
• Landau gauge gluon and ghost propagators at finite temperature from quenched lattice QCD
• Infrared behavior and Gribov ambiguity in SU(2) lattice gauge theory
• Coulomb-gauge ghost and gluon propagators in SU(3) lattice Yang-Mills theory
• SU(2) lattice gluon propagators at finite temperatures in the deep infrared region and Gribov copy effects
• Infrared features of unquenched finite temperature lattice Landau gauge QCD

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• Phase transitions and gluodynamics in 2-colour matter at high density
• Landau gauge gluon and ghost propagators from lattice QCD with Nf=2 twisted mass fermions at finite temperature
• Effects of Dense Quark Matter on Gluon Propagators in Lattice QC${}_2$D
• Topology across the finite temperature transition studied by overimproved cooling in gluodynamics and QCD
• The (IR-)relevance of the Gribov ambiguity in SU(2) x U(1) gauge theories with fundamental Higgs matter
• Phase structure and propagators at nonvanishing temperature for QCD and QCD-like theories
• Gluon Dynamics, Center Symmetry and the deconfinement phase transition in SU(3) pure Yang-Mills theory
• Gluon Propagators in 3D SU(2) Theory and Effects of Gribov Copies
• Infinite volume and continuum limits for gluon propagator in 3d SU(2) lattice gauge theory
• Gluon Propagators in $2+1$ Lattice QCD with Nonzero Isospin Chemical Potential
• Gluons in Two-Color QCD at High Baryon Density
• QCD phase diagram from the gluon propagator at finite temperature and density
• The $A^2$ Asymmetry and Gluon Propagators in Lattice $SU(3)$ Gluodynamics at $T\simeq T_c$