Gauge invariance, background fields and modified Ward identities
arXiv:hep-th/0101108 · doi:10.1142/S0217751X01004669
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.
arXiv comment6 pages, to appear in the Proceedings of the 2nd Conference on the Exact Renormalization Group, Rome 2000
References in corpus (4)
Cited by in corpus (15)
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