Renormalization of HQET at Three Loops

Details Renormalization of HQET at Three Loops Renormalization of HQET at Three Loops

2001-07-24

arxiv.org/abs/hep-ph/0107248v2

AIP Conf.Proc. 602 (2001) 271-277

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk at the QCD workshop, Martina Franca, 17-20 June, to be published in the Proceedings; LaTeX2e, aipproc document class (inc

Scientific paper

10.1063/1.1435937

Three-loop propagator diagrams in HQET can be reduced, using integration by
parts, to 8 basis integrals: 5 trivial ones, two expressible via 3F2, and one
only known up to \epsilon^0. Calculation of the heavy-quark propagator in HQET
is considerably simplified by the non-abelian exponentiation theorem.

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