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The three loop on-shell renormalization of QCD and QED

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arxiv hep-ph/0005131 v1 pith:YZSUGT22 submitted 2000-05-14 hep-ph

classification hep-ph
keywords renormalizationon-shellalphaconstantfermionfunctionloopthree
verification ladder T0 review T1 audit T2 compute T3 formal

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We describe a calculation of the on-shell renormalization factors in QCD and QED at the three loop level. Explicit results for the fermion mass renormalization factor Zm and the on-shell fermion wave function renormalization constant Z2 are given. We find that at O(alpha_s^3) the wave function renormalization constant Z2 in QCD becomes gauge dependent also in the on-shell scheme, thereby disproving the ``gauge-independence'' conjecture based on an earlier two-loop result. As a byproduct, we derive an O(alpha_s^3) contribution to the anomalous dimension of the heavy quark field in HQET.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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