Gribov horizon in the presence of dynamical mass generation in Euclidean Yang-Mills theories in the Landau gauge

Abstract

The infrared behavior of the gluon and ghost propagators is analyzed in Yang-Mills theories in the presence of dynamical mass generation in the Landau gauge. By restricting the domain of integration in the path-integral to the Gribov region $\Omega$, the gauge propagator is found to be suppressed in the infrared, while the ghost propagator is enhanced.

arXiv comment10 pages, final version to appear in Phys. Lett. B

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