Chiral Symmetry Breaking in Quenched Massive Strong-Coupling QED${}_4$

Abstract

We present results from a study of subtractive renormalization of the fermion propagator Dyson-Schwinger equation (DSE) in massive strong-coupling quenched QED${}_4$. Results are compared for three different fermion-photon proper vertex {\it Ansätze\/}: bare ${\gamma }^{\mu }$, minimal Ball-Chiu, and Curtis-Pennington. The procedure is straightforward to implement and numerically stable. This is the first study in which this technique is used and it should prove useful in future DSE studies, whenever renormalization is required in numerical work.

REVTEX 3.0, 15 pages plus 7 uuencoded PostScript figures

References in corpus (3)

• Dyson-Schwinger Equations and the Application to Hadronic Physics
• Gauge independent Chiral Symmetry Breaking in Quenched QED
• Gauge covariant fermion propagator in quenched, chirally-symmetric quantum electrodynamics

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