Renormalization flow from UV to IR degrees of freedom

Abstract

Within the framework of exact renormalization group flow equations, a scale-dependent transformation of the field variables provides for a continuous translation of UV to IR degrees of freedom. Using the gauged NJL model as an example, this translation results in a construction of partial bosonization at all scales. A fixed-point structure arises which makes it possible to distinguish between fundamental-particle and bound-state behavior of the scalar fields.

Comments: 6 pages, 2 figures, uses ActaStyle.cls, presented at RG-2002, March 10-16, 2002, Strba, Slovakia