Determination of αs from static QCD potential with renormalon subtraction

H. Takaura, T. Kaneko, Y. Kiyo, Y. Sumino

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We determine the strong coupling constant αs(MZ) from the static QCD potential by matching a lattice result and a theoretical calculation. We use a new theoretical framework based on operator product expansion (OPE), where renormalons are subtracted from the leading Wilson coefficient. We find that our OPE prediction can explain the lattice data at ΛQCDr≲0.8. This allows us to use a larger window in matching, which leads to a more reliable determination. We obtain αs(MZ)=0.1179−0.0014 +0.0015.

Original languageEnglish
Pages (from-to)598-602
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume789
DOIs
Publication statusPublished - 2019 Feb 10

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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