Dynamical gluon mass generation from <A^2> in linear covariant gauges
arXiv:hep-th/0311194 · doi:10.1088/1126-6708/2004/01/044
Abstract
We construct the multiplicatively renormalizable effective potential for the mass dimension two local composite operator A^2 in linear covariant gauges. We show that the formation of <A^2> is energetically favoured and that the gluons acquire a dynamical mass due to this gluon condensate. We also discuss the gauge parameter independence of the resultant vacuum energy.
21 pages. 14 .eps figures. v2: minor modifications. v3: version accepted for publication in JHEP