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QCD running coupling in the nonperturbative and near-perturbative regimes

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...

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Main Authors: Téramond Peralta, Guy F. de (Author) , Paul, Arpon (Author) , Brodsky, Stanley J. (Author) , Deur, Alexandre (Author) , Dosch, Hans Günter (Author) , Liu, Tianbo (Author) , Sufian, Raza Sabbir (Author)
Format: Article (Journal)
Language:English
Published: 2024
In: Physical review letters
Year: 2024, Volume: 133, Issue: 18, Pages: 181901-1-181901-8
ISSN:1079-7114
DOI:10.1103/PhysRevLett.133.181901
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.133.181901
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.133.181901
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Author Notes:Guy F. de Téramond, Arpon Paul, Stanley J. Brodsky, Alexandre Deur, Hans Günter Dosch, Tianbo Liu, and Raza Sabbir Sufian (HLFHS Collaboration)
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Summary: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.
Item Description:Online veröffentlicht: 29. Oktober 2024
Gesehen am 13.08.2025
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.133.181901

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