Dynamical gluon mass generation from <A2> in linear covariant gauges
Abstract
We construct the multiplicatively renormalizable effective potential for the mass dimension two local composite operator A2 in linear covariant gauges. We show that the formation of <A2> 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.
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