Renormalization group in the internal space

Details Renormalization group in the internal space Renormalization group in the internal space

2004-10-28

arxiv.org/abs/hep-th/0410271v1

Phys.Rev. D71 (2005) 025010

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, no figures

Scientific paper

10.1103/PhysRevD.71.025010

Renormalization group in the internal space consists of the gradual change of the coupling constants. Functional evolution equations corresponding to the change of the mass or the coupling constant are presented in the framework of a scalar model. The evolution in the mass which yields the functional generalization of the Callan-Symanzik equation for the one-particle irreducible effective action is given in its renormalized, cutoff-independent form. The evolution of the coupling constant generates an evolution equation for the two-particle irreducible effective action.

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