Loop Anomalies in the Causal Approach
High Energy Physics - Theory
2013-07-16 v2 Mathematical Physics
math.MP
Abstract
We consider gauge models in the causal approach and study one-loop contributions to the chronological products and the anomalies they produce. We prove that in order greater than 4 there are no one-loop anomalies. Next we analyze one-loop anomalies in the second and third order of the perturbation theory. We prove that the even parity contributions (with respect to parity) do not produce anomalies; for the odd parity contributions we reobtain the well-known result.
Cite
@article{arxiv.1302.1692,
title = {Loop Anomalies in the Causal Approach},
author = {Dan-Radu Grigore},
journal= {arXiv preprint arXiv:1302.1692},
year = {2013}
}
Comments
35 pages, significant changes