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28 March 2024
 
  » arxiv » hep-th/9809020

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On Gauge Invariance and Ward Identities for the Wilsonian Renormalisation Group
Daniel F. Litim ; Jan M. Pawlowski ;
Date 2 Sep 1998
Journal Nucl.Phys.Proc.Suppl. 74 (1999) 325-328
Subject hep-th hep-ph
AbstractWe investigate non-Abelian gauge theories within a Wilsonian Renormalisation Group approach. The cut-off term inherent in this approach leads to a modified Ward identity (mWI). It is shown that this mWI is compatible with the flow and that the full effective action satisfies the usual Ward identity (WI). The universal 1-loop beta-function is derived within this approach and the extension to the 2-loop level is briefly outlined.
Source arXiv, hep-th/9809020
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