On the infrared behavior of Landau gauge Yang-Mills theory

Journal Article · Sun Nov 15 00:00:00 EST 2009 · Annals of Physics (New York)

DOI:https://doi.org/10.1016/j.aop.2009.07.009· OSTI ID:21308046

Fischer, Christian S ^[1]; Maas, Axel ^[2]; Pawlowski, Jan M ^[3]

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1. Institut fuer Kernphysik, Technische Universitaet Darmstadt, Schlossgartenstrasse 9, D-64289 Darmstadt (Germany)
2. Institut fuer Physik, Karl-Franzens Universitaet Graz, Universitaetsplatz 5, A-8010 Graz (Austria)
3. Institut fuer Theoretische Physik, University of Heidelberg, Philosophenweg 16, D-62910 Heidelberg (Germany)

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.

• OSTI ID: 21308046
• Journal Information: Annals of Physics (New York), Vol. 324, Issue 11; Other Information: DOI: 10.1016/j.aop.2009.07.009; PII: S0003-4916(09)00146-8; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUNDARY CONDITIONS
CONFINEMENT
EQUATIONS
GLUONS
PROPAGATOR
RENORMALIZATION
YANG-MILLS THEORY