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arXiv · hep-ph/9902233

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

Yu. A. Simonov
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Abstract

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 $\frac{6N_cα_sσr}{2π}$ 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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Yu. A. Simonov. 1999-03-30. Perturbative-nonperturbative interference in the static QCD interaction at small distances. https://doi.org/10.1016/s0370-1573(99)00069-1

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