Estimate of 4-loop pole-MS mass relation from static QCD potential

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Abstract

We estimate the presently unknown constant in the 4-loop relation between the quark pole mass and the MS mass, by requiring stability of the perturbative prediction for Etot(r) = 2mpole + VQCD(r) in the intermediate-distance region. The estimate is fairly sharp due to a severe cancellation between 2mpole and VQCD(r). This would provide a test, based on general properties of the gauge theory, for the size of ultra-soft contributions to VQCD(r)

Original languageEnglish
Pages (from-to)73-76
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume728
DOIs
Publication statusPublished - 2014 Jan 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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