More on ambiguities in the pole mass

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Abstract

The relation between the pole quark mass and the MS-renormalized mass is governed by an infrared renormalon singularity, which leads to an ambiguity of order ΛQCD in the definition of the pole mass. We use the renormalization group and heavy quark effective theory to determine the exact nature of this singularity up to an overall normalization. In the abelian gauge theory, the normalization is computed partially to next-to-leading order in the flavour expansion.

Original languageEnglish
Pages (from-to)341-347
Number of pages7
JournalPhysics Letters B
Volume344
Issue number1-4
DOIs
StatePublished - 26 Jan 1995
Externally publishedYes

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