학술논문
The strong coupling in the nonperturbative and near-perturbative regimes
Document Type
Working Paper
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Abstract
We use analytic continuation to extend the gauge/gravity duality nonperturbative description of the strong force coupling into the transition, near-perturbative, regime where perturbative effects become important. By excluding the unphysical region in coupling space from the flow of singularities in the complex plane, we derive a specific relation between the scales relevant at large and short distances; this relation is uniquely fixed by requiring maximal analyticity. The unified effective coupling model gives an accurate description of the data in the nonperturbative and the near-perturbative regions.
Comment: 15 pages, 4 figures
Comment: 15 pages, 4 figures