arXiv:hep-th/0507052·v2·High Energy Physics — Theory
The influence of the Gribov copies on the gluon and ghost propagators in Euclidean Yang-Mills theory in the maximal Abelian gauge
M.A.L. Capri🇧🇷 · V.E.R. Lemes🇧🇷 · R.F. Sobreiro🇧🇷 · S.P. Sorella🇧🇷 · R. Thibes🇧🇷
Abstract
The effects of the Gribov copies on the gluon and ghost propagators are investigated in SU(2) Euclidean Yang-Mills theory quantized in the maximal Abelian gauge. The diagonal component of the gluon propagator displays the characteristic Gribov type behavior. The off-diagonal component of the gluon propagator is found to be of the Yukawa type, with a dynamical mass originating from the dimension two condensate <A^2>, which is also taken into account. Finally, the off-diagonal ghost propagator exhibits infrared enhancement.
Comments: 25 pages, 2 figures. Version accepted for publication in Phys.Rev.D. Added references