TTP - TTP08-27 New Results in Four and Five Loop QED calculations

Institute for Theoretical Particle Physics (TTP)

We report on two recent multiloop results in QED: (i) the four-loop corrections to the conversion relations between the QED charge renormalized in the on-shell and MS-bar schemes; (ii) analytical evaluation of a class of asymptotic contributions to the muon anomaly at five-loops.

P.A. Baikov, K.G. Chetyrkin and C. Sturm

Nucl.Phys Proc.Suppl.183 8-13 2008

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TTP08-27 New Results in Four and Five Loop QED calculations

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