Screened massive expansion of Schwinger-Dyson equations

Abstract

A general formal derivation of the screened massive expansion is provided by Schwinger-Dyson equations. Some known issues of the expansion are clarified and a more general framework is established for a natural extension of the method to two-loop or to amplitudes which are not directly defined by a generating functional. For instance, a one-loop screened expansion is given for the effective gauge-parameter-independent gluon propagator which arises from the pinch-technique.

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Cited by in corpus (4)

• Ghost-gluon vertex in the presence of the Gribov horizon: General kinematics
• Analytic continuation and physical content of the gluon propagator
• QCD phase diagram from the gluon propagator at finite temperature and density
• One-loop analytic structure of the deep-infrared Landau-gauge gluon propagator at finite temperature