Massless propagators: applications in QCD and QED

P. A. Baikov; K. G. Chetyrkin; J. H. Kühn

paper

Massless propagators: applications in QCD and QED

arXiv:0810.4048

Abstract

We report on two recent results based on the evaluation of five-loop massless propagators in QCD and QED: (i) corrections of order $α_{s}^{4}$ to the absorptive part of the polarization function in QCD with $n_{f} = 3$ ;(ii) the five-loop contribution to the $β$ function of quenched QED.

7 pages, contribution to the 8-th International Symposium on Radiative Corrections (RADCOR), October 1-5 2007, Florence, Italy

References in corpus (1)

Hadronic Z- and tau-Decays in Order alpha_s^4