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We study the behavior of the gluon and ghost dressing functions in SU(3)Landau gauge at low momenta available on lattice sizes 12^4-32^4 at$\beta$=5.8, 6.0 and 6.2. We demonstrate the ghost dressing function to besystematically dependent on the choice of Gribov copies, while the influence onthe gluon dressing function is not resolvable. The running coupling given interms of these functions is found to be decreasing for momenta q<0.6 GeV. Westudy also effects of the finite volume and of the lattice discretization.Comment: 10 pages, 6 figures. Revised version to appear in Phys.Rev.D. Title  modified; a new subsection discusses finite volume and finite lattice spacing  effects; few references adde

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Towards the infrared limit in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>S</mml:mi><mml:mi>U</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>3</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>Landau gauge lattice gluodynamics

Towards the infrared limit inSU(3)Landau gauge lattice gluodynamics