We report on two recent results based on the evaluation of five-loop massless propagators in QCD and QED: (i) corrections of order αs4 to the absorptive part of the polarization function in QCD with nf=3;(ii) the five-loop contribution to the β function of quenched QED.
Cite
@article{arxiv.0810.4048,
title = {Massless propagators: applications in QCD and QED},
author = {P. A. Baikov and K. G. Chetyrkin and J. H. Kühn},
journal= {arXiv preprint arXiv:0810.4048},
year = {2009}
}
Comments
7 pages, contribution to the 8-th International Symposium on Radiative Corrections (RADCOR), October 1-5 2007, Florence, Italy