Static QCD Potential at r < 1/Lambda_QCD: Perturbative expansion and operator-product expansion

Abstract

We analyze the static QCD potential V_QCD(r) in the distance region 0.1 fm < r < 1 fm using perturbative QCD and OPE as basic theoretical tools. We assemble theoretical developments up to date and perform a solid and accurate analysis. The analysis consists of 3 major steps: (I) We study large-order behavior of the perturbative series of V_QCD(r) analytically. (II) In the frame of OPE, we define two types of renormalization schemes for the leading Wilson coefficient. (III) We compare numerically perturbative predictions of the Wilson coefficient and lattice computations of V_QCD(r). We perform fits to simultaneously determine non-perturbative contribution and the relation between lattice scale and Lambda_MSbar. (Short version)

60 pages, 28 figures

References in corpus (3)

• The Four-Loop QCD Beta-Function and Anomalous Dimensions
• Two-Loop Static QCD Potential for General Colour State
• String breaking with dynamical Wilson fermions

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