On the infrared behavior of Landau gauge Yang-Mills theory

We discuss the properties of ghost and gluon propagators in the deep infrared momentum region of Landau gauge Yang-Mills theory. Within the framework of Dyson-Schwinger equations and the functional renormalization group we demonstrate that it is only a matter of infrared boundary conditions whether...

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Hauptverfasser: Fischer, Christian S. (VerfasserIn) , Maas, Axel Torsten (VerfasserIn) , Pawlowski, Jan M. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 3 August 2009
In: Annals of physics
Year: 2009, Jahrgang: 324, Heft: 11, Pages: 2408-2437
DOI:10.1016/j.aop.2009.07.009
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1016/j.aop.2009.07.009
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0003491609001468
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Verfasserangaben:Christian S. Fischer, Axel Maas, Jan M. Pawlowski
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Zusammenfassung:We discuss the properties of ghost and gluon propagators in the deep infrared momentum region of Landau gauge Yang-Mills theory. Within the framework of Dyson-Schwinger equations and the functional renormalization group we demonstrate that it is only a matter of infrared boundary conditions whether infrared scaling or decoupling occurs. We argue that the second possibility is at odds with global BRST symmetry in the confining phase. For this purpose we improve upon existing truncation schemes in particular with respect to transversality and renormalization.
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Beschreibung:Online Resource
DOI:10.1016/j.aop.2009.07.009