Zero-dimensional field theory

Details Zero-dimensional field theory Zero-dimensional field theory

2001-01-31

arxiv.org/abs/hep-ph/0101346v1

Eur.Phys.J.C19:567-582,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

38 pages, LaTeX

Scientific paper

10.1007/s100520100630

A study of zero-dimensional theories, based on exact results, is presented. First, relying on a simple diagrammatic representation of the theory, equations involving the generating function of all connected Green's functions are constructed. Second, exact solutions of these equations are obtained for several theories. Finally, renormalization is carried out. Based on the anticipated knowledge of the exact solutionsthe full dependence on the renormalized coupling constant is studied.

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