TY - JOUR
T1 - OPE analysis of QCD potential and determination of ΛMS
AU - Sumino, Yukinari
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-ShareAlike Licence.
PY - 2005
Y1 - 2005
N2 - We analyze the static QCD potential in the distance region 0.1 fm ≤ r ≤ 1 fm. We combine most recent lattice computations and perturbative computations of the potential, in the framework of operator-product expansion (OPE). We determine simultaneously the non-perturbative contribution to the potential, δEUS(r), and the relation between the lattice scale (Sommer scale) and ≤MS in the quenched approximation. We find that (1) large part of the short-distance linear potential belongs to the perturbative Wilson coefficient, (2) δEUS (r) = 0 is disfavored, and (3) r0∇3-LOOP/MS = 0.574 ±0.042. It provides a new method for precise determination of r0∇3-LOOP/MS.
AB - We analyze the static QCD potential in the distance region 0.1 fm ≤ r ≤ 1 fm. We combine most recent lattice computations and perturbative computations of the potential, in the framework of operator-product expansion (OPE). We determine simultaneously the non-perturbative contribution to the potential, δEUS(r), and the relation between the lattice scale (Sommer scale) and ≤MS in the quenched approximation. We find that (1) large part of the short-distance linear potential belongs to the perturbative Wilson coefficient, (2) δEUS (r) = 0 is disfavored, and (3) r0∇3-LOOP/MS = 0.574 ±0.042. It provides a new method for precise determination of r0∇3-LOOP/MS.
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M3 - Conference article
AN - SCOPUS:85056904541
SN - 1824-8039
VL - 20
JO - Proceedings of Science
JF - Proceedings of Science
T2 - 23rd International Symposium on Lattice Field Theory, LAT 2005
Y2 - 25 July 2005 through 30 July 2005
ER -