Running coupling constant of background perturbation theory and lattice interquark interaction

A. M. Badalian

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arXiv · hep-lat/9704004

Running coupling constant of background perturbation theory and lattice interquark interaction

A. M. Badalian

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Abstract

The conventional parametrizations of lattice static interquark force are shown to produce a mismatch of coupling constant near the matching point R_m \approx 0.2 fm. The running coupling constant of the background perturbation theory yields instead a selfconsistent description of lattice data over all interval of distances, 0.05 fm \la R \la 1.1.fm, and is an analytic function with the property of asymptotic freedom at small R and it is freezing at large R.

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A. M. Badalian. 1997-04-07. Running coupling constant of background perturbation theory and lattice interquark interaction. https://arxiv.org/abs/hep-lat/9704004

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