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arXiv · hep-ph/0303120

QCD potential as a "Coulomb-plus-linear" potential

Y. Sumino
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Abstract

We show analytically that the QCD potential can be expressed, up to an O(Lambda_QCD^3 r^2) uncertainty, as the sum of a ``Coulomb'' potential (with log corrections at short distances) and a linear potential, within an approximation based on perturbative expansion in alpha_S and the renormalon dominance picture. The expansion of V_QCD(r) is truncated at O(alpha_S^N) [N = 6 pi/(beta_0 alpha_S)], where the term becomes minimal according to the estimate by NLO renormalon, and is studied for N >> 1. Analytic expressions for the linear potential are obtained in some cases.

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BibTeXRIS

Y. Sumino. 2003-06-02. QCD potential as a "Coulomb-plus-linear" potential. https://doi.org/10.1016/j.physletb.2003.05.010

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