Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-10-02
Physics
High Energy Physics
High Energy Physics - Theory
16 pages
Scientific paper
A gauge invariant flow equation is derived by applying a Wilsonian momentum cut-off to gauge invariant field variables. The construction makes use of the geometrical effective action for gauge theories in the Vilkovisky-DeWitt framework. The approach leads to modified Nielsen identities that pose non-trivial constraints on consistent truncations. We also evaluate the relation of the present approach to gauge fixed formulations as well as discussing possible applications.
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