Renormalization of Wilson Operators in the Light-Cone Gauge
High Energy Physics - Theory
2009-01-07 v2
Abstract
We test the renormalization of Wilson operators and the Mandelstam- Leibbrandt gauge in the case when the sides of the loop are parallel to the n, n* vectors used in the M-L gauge. Graphs which in the Feynman gauge are free of ultra-violet divergences, in the M-L gauge show double divergences and single divergences with non-local Si and Ci functions. These non-local functions cancel out when we add all graphs together and the constraints of gauge invariance are satisfied. In Appendix C we briefly discuss the problems of the M-L gauge for loops containing spacelike lines.
Keywords
Cite
@article{arxiv.hep-th/9912138,
title = {Renormalization of Wilson Operators in the Light-Cone Gauge},
author = {A. Andrasi},
journal= {arXiv preprint arXiv:hep-th/9912138},
year = {2009}
}
Comments
plain tex, 18 pages, 20 figures, revised