Fit to Gluon Propagator and Gribov Formula

Abstract

We report a numerical study of SU(2) lattice gauge theory in the minimal Coulomb gauge at beta = 2.2 and 9 different volumes. After extrapolation to infinite volume, our fit agrees with a lattice discretization of Gribov's formula for the transverse equal-time would-be physical gluon propagator, that vanishes like |k| at k = 0, whereas the free equal-time propagator (2|k|)^{-1} diverges. Our fit lends reality to a confinement scenario in which the would-be physical gluons leave the physical spectrum while the long-range Coulomb force confines color.

8 pages, 5 figures; minor modifications in the text; added references; corrected typos

References in corpus (2)

• Infinite Volume and Continuum Limits of the Landau-Gauge Gluon Propagator
• Propagators and Dimensional Reduction of Hot SU(2) Gauge Theory

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