Gauge invariance, background fields and modified Ward identities

• Verfasst von: Freire, Filipe [VerfasserIn]
• Verfasst von: Litim, Daniel F. [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Titel: Gauge invariance, background fields and modified Ward identities
• Verf.angabe: F. Freire, School of Theoretical Physics, Dublin Institute for Advanced Studies, 10 Burlington Road, Dublin 4, Ireland ; D.F. Litim, Theory Division, CERN, CH-1211 Geneva 23, Switzerland ; J.M. Pawlowski, Institut für Theoretische Physik III, Universität Erlangen-Nürnberg, Staudtstraße 7, D-91058 Erlangen, Germany
• Fussnoten: Gesehen am 06.12.2017
• Titel Quelle: Enthalten in: De.arxiv.org
• Jahr Quelle: 2001
• Band/Heft Quelle: (2001) Artikel-Nummer 0101108, 6 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1566088984

Abstract

In this talk the gauge symmetry for Wilsonian flows in pure Yang-Mills theories is discussed. The background field formalism is used for the construction of a gauge invariant effective action. The symmetries of the effective action under gauge transformations for both the gauge field and the auxiliary background field are separately evaluated. Modified Ward-Takahashi and background field identities are used in my study. Finally it is shown how the symmetry properties of the full theory are restored in the limit where the cut-off is removed.