Infrared exponents of gluon and ghost propagators from Lattice QCD

Details Infrared exponents of gluon and ghost propagators from Lattice QCD Infrared exponents of gluon and ghost propagators from Lattice QCD

2007-10-02

arxiv.org/abs/0710.0665v1

PoSLAT2007:332,2007

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 3 figures, talk presented at Lattice 2007 (Vacuum structure and confinement)

Scientific paper

The compatibility of the pure power law infrared solution of QCD Dyson-Schwinger equations (DSE) and lattice data for the gluon and ghost propagators in Landau gauge is discussed. For the gluon propagator, the lattice data is compatible with the DSE infrared solution with an exponent $\kappa\sim0.53$, measured using a technique that suppresses finite volume effects and allows to model these corrections to the lattice data. For the ghost propagator, the lattice data does not seem to follow the infrared DSE power law solution.

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