Work

Renormalization and chiral symmetry breaking in quenched QED in arbitrary covariant gauges

Year: 1996

Type: article

Abstract: We extend a previous Landau-gauge study of subtractive renormalization of the fermion propagator Dyson-Schwinger equation in strong-coupling, quenched four-dimensional QED to arbitrary covariant gauges. We use the fermion-photon proper vertex proposed by Curtis and Pennington with an additional correction term included to compensate for the small gauge dependence induced by the ultraviolet regulator. We discuss the chiral limit and the onset of dynamical chiral symmetry breaking in the presence of nonperturbative renormalization. We extract the critical coupling in several different gauges and find evidence of a small residual gauge dependence in this quantity.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.54.5361

Authors: Frederick T. Hawes, Anthony G. Williams, Craig D. Roberts

Institutions: Florida State University, The University of Adelaide, Argonne National Laboratory

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1973533539

FWCI: 1.151

Cites: 40

Cited by: 17

Related to: 10