Lattice QCD computation of the SU(3) string tension critical curve

2011/11/30 by N. Cardoso, Nuno Cardoso, Pedro Bicudo +1 · 4 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.85.077501

published as PhysRevD.85.077501,2012 · results improved, 5 pages, 6 figures, 1 table, work partly done under the PTQCD collaboration

arxiv created 2012/02/10 · openalex publication_date 2012/04/02 · arxiv updated 2012/04/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We investigate the critical curve of the string tension \ensuremathσ(T) as a function of temperature in quenched gauge invariant SU(3) lattice gauge theory. We extract \ensuremathσ(T) from the color averaged free energy of a static quark-antiquark pair. To compute the free energy, we utilize a pair of gauge invariant Polyakov loop and antiloop correlations and apply the multihit procedure to enhance the signal-to-noise ratio. We find that the string tension departs from the zero temperature \ensuremathσ₀ at T\ensuremath≃0.5T_c. We cover the relevant temperature range from 0.5T_c up to the confinement temperature T_c using 54 different sets of pure gauge lattice configurations with four temporal extensions (4, 6, 8, 12), different \ensuremathβ, and a spatial volume of 48³ in lattice units.

Cited by

• Color screening in flux tubes and in the color Coulomb potential from QCD field correlators
• Y-stringlike behavior of a static baryon at finite temperature
• Holographic anisotropic model for light quarks with confinement-deconfinement phase transition
• Fine corrections in the effective string describing SU(2) Yang-Mills theory in three dimensions