Massless propagators: applications in QCD and QED

Details Massless propagators: applications in QCD and QED Massless propagators: applications in QCD and QED

2008-10-22

arxiv.org/abs/0810.4048v1

PoS RADCOR2007:023,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

We report on two recent results based on the evaluation of five-loop massless
propagators in QCD and QED: (i) corrections of order $\alpha_s^4$ to the
absorptive part of the polarization function in QCD with $n_f=3$;(ii) the
five-loop contribution to the $\beta$ function of quenched QED.

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