%0 Journal Article
%T Chiral Symmetry Breaking with the Curtis-Pennington Vertex
%A D. Atkinson
%A V. P. Gusynin
%A P. Maris
%J Physics
%D 1992
%I arXiv
%R 10.1016/0370-2693(93)90061-L
%X We study chiral symmetry breaking in quenched QED$_4$, 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.
%U http://arxiv.org/abs/hep-th/9211124v1