Perturbative-nonperturbative interference in the static QCD interaction at small distances

Details Perturbative-nonperturbative interference in the static QCD interaction at small distances Perturbative-nonperturbative interference in the static QCD interaction at small distances

1999-02-03

arxiv.org/abs/hep-ph/9902233v3

Phys.Rept. 320 (1999) 265-274

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 13 pages, references added

Scientific paper

10.1016/S0370-1573(99)00069-1

Short distance static quark--antiquark interaction is studied systematically using the background perturbation theory with nonperturbative background described by field correlators. A universal linear term $\frac{6N_c\alpha_s\sigma r}{2\pi}$ is observed at small distance $r$ due to the interference between perturbative and nonperturbative contributions. Possible modifications of this term due to additional subleading terms are discussed and implications for systematic corrections to OPE are formulated.

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