Infrared Gluon Propagator from lattice QCD: results from large asymmetric lattices

Details Infrared Gluon Propagator from lattice QCD: results from large asymmetric lattices Infrared Gluon Propagator from lattice QCD: results from large asymmetric lattices

2005-11-21

arxiv.org/abs/hep-lat/0511043v5

Phys.Rev. D74 (2006) 034513

Physics

High Energy Physics

High Energy Physics - Lattice

Final version to appear in Phys Rev D

Scientific paper

10.1103/PhysRevD.74.034513

The infrared limit of the lattice Landau gauge gluon propagator is studied. We show that the lattice data is compatible with the pure power law $(q^2)^{2 \kappa}$ solution of the Dyson-Schwinger equations. Using various lattice volumes, the infinite volume limit for the exponent $\kappa$ is measured. Although, the results allow $\kappa = 0.498 - 0.525$, the lattice data favours $\kappa \sim 0.52$, which would imply a vanishing zero momentum gluon propagator.

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