Generating fermion mass in four-dimensional quenched QED
- 15 September 1992
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 46 (6), 2663-2667
- https://doi.org/10.1103/physrevd.46.2663
Abstract
The fermion propagator in four-dimensional quenched QED is studied by way of its Schwinger-Dyson equation. The all important fermion-boson vertex is approximated by a nonperturbative form that satisfies the Ward-Takahashi identity and ensures the fermion is multiplicatively renormalizable. Numerical solutions in both the Landau and Feynman gauges show a dynamical mass is generated for all values of the coupling.Keywords
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