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Naive nonabelianization and resummation of fermion bubble chains

URN to cite this document:
urn:nbn:de:bvb:355-epub-139650
Beneke, M. ; Braun, Vladimir M.
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Date of publication of this fulltext: 12 Apr 2010 11:52



Abstract

We propose to extent the Brodsky-Lepage-Mackenzie scale-fixing prescription by resuming exactly any number of one-loop vacuum polarization insertions into one-loop diagram. In this way, one makes maximal use of the information contained in one-loop perturbative corrections combined with the one-loop running of the effective coupling. The scale ambiguity at leading order is converted into an ...

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