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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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2024
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| In: |
Physical review letters
Year: 2024, Jahrgang: 133, Heft: 18, Pages: 181901-1-181901-8 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.133.181901 |
| Online-Zugang: | 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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| Verfasserangaben: | Guy F. de Téramond, Arpon Paul, Stanley J. Brodsky, Alexandre Deur, Hans Günter Dosch, Tianbo Liu, and Raza Sabbir Sufian (HLFHS Collaboration) |
| Zusammenfassung: | 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. |
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| Beschreibung: | Online veröffentlicht: 29. Oktober 2024 Gesehen am 13.08.2025 |
| Beschreibung: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.133.181901 |