The infrared behaviour of the gluon propagator from lattice QCD

Details The infrared behaviour of the gluon propagator from lattice QCD The infrared behaviour of the gluon propagator from lattice QCD

1998-08-25

arxiv.org/abs/hep-lat/9808033v1

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 10 figures, sprocl.sty. Talk given at Workshop on Nonperturbative Methods in Quantum Field Theory, Adelaide, February

Scientific paper

The gluon propagator in the Landau gauge is calculated in quenched QCD on a large lattice (32^3x64) at beta=6.0. In order to assess finite volume and finite lattice spacing artefacts, we also calculate the propagator on a smaller volume for two different values of the lattice spacing. New structure seen in the infrared region survives conservative cuts to the lattice data, and serves to exclude a number of models that have appeared in the literature.

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