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Differential Renormalization of Gauge Theories

By F del Águila and M Pérez-Victoria

Abstract

The scope of constrained differential renormalization is to provide renormalized expressions for Feynman graphs, preserving at the same time the Ward identities of the theory. It has been shown recently that this can be done consistently at least to one loop for abelian and non-abelian gauge theories. We briefly review these results, evaluate as an example the gluon selfenergy in both coordinate and momentum space, and comment on anomalies

Topics: Particle Physics - Phenomenology
Year: 1998
OAI identifier: oai:cds.cern.ch:362345
Provided by: CERN Document Server
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