Determination of αs from static QCD potential with renormalon subtraction

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

研究成果: Article査読

13 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)598-602
ページ数5
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
789
DOI
出版ステータスPublished - 2019 2 10

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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