ar X iv : h ep - t h / 98 09 02 0 v 1 2 S ep 1 99 8 On Gauge Invariance and Ward Identities for the Wilsonian
نویسنده
چکیده
We 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 β-function is derived within this approach and the extension to the 2-loop level is briefly outlined. DIAS-STP-98-08 ECM-UB-PF-98-20
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ar X iv : h ep - t h / 98 09 02 0 v 2 3 S ep 1 99 8 On
We 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 β-function is derived within this approach and the extension to the 2-...
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