arXiv:hep-th/0612180·v2·High Energy Physics — Theory
The next-to-ladder approximation for Dyson-Schwinger equations
Isabella Bierenbaum🇩🇪 · Dirk Kreimer🇫🇷 · Stefan Weinzierl🇩🇪
Abstract
We solve the linear Dyson Schwinger equation for a massless vertex in Yukawa theory, iterating the first two primitive graphs.
Comments: 5 pages, final version as to appear in PLB