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arXiv · 1309.5436

Estimate of 4-loop Pole-MSbar Mass Relation from Static QCD Potential

Y. Sumino
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Abstract

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

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Y. Sumino. 2013-11-30. Estimate of 4-loop Pole-MSbar Mass Relation from Static QCD Potential. https://doi.org/10.1016/j.physletb.2013.11.022

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