Aspects of confinement from QCD correlation functions

• Verfasst von: Fischer, Christian S. [VerfasserIn]
• Verfasst von: Maas, Axel Torsten [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Titel: Aspects of confinement from QCD correlation functions
• Verf.angabe: Christian S. Fischer, Institute for Nuclear Physics, Darmstadt University of Technology, Schlossgartenstraße 9, 64289 Darmstadt, Germany, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany ; Axel Maas, Institut für Physik, Karl-Franzens Universität Graz, Universitätsplatz 5, A-8010 Graz, Austria ; Jan M. Pawlowski, Institut für Theoretische Physik, University of Heidelberg, Philosophenweg 16, D-62910 Heidelberg, Germany
• Fussnoten: Gesehen am 05.12.2017
• Titel Quelle: Enthalten in: De.arxiv.org
• Jahr Quelle: 2008
• Band/Heft Quelle: (2008) Artikel-Nummer 0912.4203, 14 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1566029260

Abstract

We discuss the properties of ghost and gluon propagators in Landau gauge Yang-Mills theory and their relation to the confinement problem. In general two types of infrared behavior of these functions are allowed from their functional equations: scaling and decoupling. Both solutions show positivity violations in the gluon propagator and lead to a confining Polyakov loop potential. However, only the scaling solution agrees with the Kugo-Ojima confinement scenario and the related formulation of a physical Hilbert space of Yang-Mills theory. Our numerical results for the gluon dressing function agree almost pointwise with the lattice results at all physical momenta.