Infrared abelian dominance in a special gauge

Abstract

Maximal Abelian gauge has been a particular choice to study dynamical generation of off-diagonal gluon masses in QCD. This gauge is a special case of an Abelian projection. Abelian dominance is characterized by off-diagonal gluons acquiring masses in the relevant phase. Here we propose a gauge condition which is quadratic in fields and which does not fall in the class of an Abelian projection. We observe that ghost bilinears may be subject to condensation, which would signal acquisition of masses by off-diagonal gluons, which in turn hints at existence of Abelian dominance in a theory without Abelian projection.