Non-invariant two-loop counterterms for the three-gauge-boson vertices
High Energy Physics - Phenomenology
2009-10-31 v2 High Energy Physics - Theory
Abstract
Some practical applications of algebraic renormalization are discussed. In particular we consider the two-loop QCD corrections to the three-gauge-boson vertices involving photons, Z and W bosons. For this purpose also the corresponding two-point functions have to be discussed. A recently developed procedure is used to analyze the breaking terms of the functional identities and explicit formulae for the universal counterterms are provided. Special attention is devoted to the treatment of infra-red divergences.
Keywords
Cite
@article{arxiv.hep-ph/0011067,
title = {Non-invariant two-loop counterterms for the three-gauge-boson vertices},
author = {P. A. Grassi and T. Hurth and M. Steinhauser},
journal= {arXiv preprint arXiv:hep-ph/0011067},
year = {2009}
}
Comments
Some minor corrections and improved discussion in the one-loop section