Two loop divergences studied with one loop Constrained Differential Renormalization

Details Two loop divergences studied with one loop Constrained Differential Renormalization Two loop divergences studied with one loop Constrained Differential Renormalization

2006-04-10

arxiv.org/abs/hep-th/0604071v1

AnnalsPhys.322:1972-2006,2007

Physics

High Energy Physics

High Energy Physics - Theory

33 pages, 5 figures

Scientific paper

10.1016/j.aop.2006.12.001

In the context of Differential Renormalization, using Constrained Differential Renormalization rules at one loop, we show how to obtain concrete results in two loop calculations without making use of Ward identities. In order to do that, we obtain a list of integrals with overlapping divergences compatible with CDR that can be applied to various two loop background field calculations. As an example, we obtain the two loop coefficient of the beta function of QED, SuperQED and Yang-Mills theory.

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