O(N_f alpha^2) Electromagnetic Charge Renormalization in the Standard Model
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
The O(N_f alpha^2) electroweak radiative corrections to the Thomson scattering matrix element are calculated for a general renormalization scheme with massless fermions. All integrals can be evaluated exactly in dimensional regularization which in several cases yields new results that are remarkably simple in form. A number of stringent internal consistency checks are performed. The Z-gamma mixing complicates the calculation of 1-particle reducible diagrams considerably at this order and a general treatment of this problem is given. Conditions satisfied by O(N_f alpha^2) counterterms are derived and may be applied to other calculations at this order.
Keywords
Cite
@article{arxiv.hep-ph/9805364,
title = {O(N_f alpha^2) Electromagnetic Charge Renormalization in the Standard Model},
author = {Paresh Malde and Robin G. Stuart},
journal= {arXiv preprint arXiv:hep-ph/9805364},
year = {2007}
}
Comments
29 pages LaTeX. 6 figures. Uses amsmath.sty, cite.sty and epsfig.sty