Gauge Invariant Cutoff QED
High Energy Physics - Theory
2014-05-15 v3 High Energy Physics - Phenomenology
Abstract
A hidden generalized gauge symmetry of a cutoff QED is used to show the renormalizability of QED. In particular, it is shown that corresponding Ward identities are valid all along the renormalization group flow. The exact Renormalization Group flow equation corresponding to the effective action of a cutoff lambda phi^4 theory is also derived. Generalization to any gauge group is indicated.
Cite
@article{arxiv.1108.3215,
title = {Gauge Invariant Cutoff QED},
author = {F. Ardalan and H. Arfaei and M. Ghasemkhani and N. Sadooghi},
journal= {arXiv preprint arXiv:1108.3215},
year = {2014}
}
Comments
V1: 18 pages, 2 figures; V2: Discussions improved. Version accepted for publication in Physica Scripta