Correlation functions of three-dimensional Yang-Mills theory from the FRG

• Verfasst von: Corell, Lukas [VerfasserIn]
• Verfasst von: Cyrol, Anton Konrad [VerfasserIn]
• Verfasst von: Mitter, Mario [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Verfasst von: Strodthoff, Nils [VerfasserIn]
• Titel: Correlation functions of three-dimensional Yang-Mills theory from the FRG
• Verf.angabe: Lukas Corell, Anton K. Cyrol, Mario Mitter, Jan M. Pawlowski, and Nils Strodthoff
• E-Jahr: 2018
• Jahr: 9 Apr 2018
• Umfang: 10 S.
• Fussnoten: Gesehen am 18.12.2018
• Titel Quelle: Enthalten in: De.arxiv.org
• Ort Quelle: [S.l.] : Arxiv.org, 1991
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018), Artikel-ID 1803.10092
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: High Energy Physics - Phenomenology
• Sach-SW: High Energy Physics - Theory
• Sach-SW: High Energy Physics - Lattice
• K10plus-PPN: 1585637386

Abstract

We compute correlation functions of three-dimensional Landau-gauge Yang-Mills theory with the Functional Renormalisation Group. Starting from the classical action as only input, we calculate the non-perturbative ghost and gluon propagators as well as the momentum-dependent ghost-gluon, three-gluon, and four-gluon vertices in a comprehensive truncation scheme. Compared to the physical case of four spacetime dimensions, we need more sophisticated truncations due to significant contributions from non-classical tensor structures. In particular, we apply a special technique to compute the tadpole diagrams of the propagator equations, which captures also all perturbative two-loop effects, and compare our correlators with lattice and Dyson-Schwinger results.