paper

Chiral Symmetry Breaking with the Curtis-Pennington Vertex

arXiv:hep-th/9211124 · doi:10.1016/0370-2693(93)90061-L

Abstract

We study chiral symmetry breaking in quenched QED, using a vertex Ansatz recently proposed by Curtis and Pennington. Bifurcation analysis is employed to establish the existence of a critical coupling and to estimate its value. The main results are in qualitative agreement with the ladder approximation, the numerical changes being minor.

19 pages, LaTeX

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