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 — preprints:2008:ttp08-03 [2016/03/17 11:03] (current) Line 1: Line 1: + ====== TTP08-03 Massless propagators:​ applications in QCD and QED ====== + + + <​hidden TTP08-03 ​ Massless propagators:​ applications in QCD and QED > 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. + ​ + |**P.A. Baikov, K.G. Chetyrkin and  J.H.K\"​uhn** ​ | + |**  PoS    RADCOR2007 023 2007  **  | + | {{preprints:​2008:​ttp08-03.pdf|PDF}} {{preprints:​2008:​ttp08-03.ps|PostScript}} [[http://​arxiv.org/​abs/​0810.4048|arXiv]] ​  | + | |