Universality From Very General Nonperturbative Flow Equations in QCD

Details Universality From Very General Nonperturbative Flow Equations in QCD Universality From Very General Nonperturbative Flow Equations in QCD

2006-11-29

arxiv.org/abs/hep-th/0611323v1

Phys.Lett.B645:466-469,2007

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, 1 figure

Scientific paper

10.1016/j.physletb.2006.12.057

In the context of very general exact renormalization groups, it will be shown that, given a vertex expansion of the Wilsonian effective action, remarkable progress can be made without making any approximations. Working in QCD we will derive, in a manifestly gauge invariant way, an exact diagrammatic expression for the expectation value of an arbitrary gauge invariant operator, in which many of the non-universal details of the setup do not explicitly appear. This provides a new starting point for attacking nonperturbative problems.

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