Chiral Hierarchies, Compositeness and the Renormalization Group

Details Chiral Hierarchies, Compositeness and the Renormalization Group Chiral Hierarchies, Compositeness and the Renormalization Group

1993-07-30

arxiv.org/abs/hep-th/9307193v1

Phys.Rev.D49:1437-1445,1994

Physics

High Energy Physics

High Energy Physics - Theory

22 pp + 5 figs (uuencoded and submitted separately), SSCL-Preprint-490; FERMI-PUB-93/035-T

Scientific paper

10.1103/PhysRevD.49.1437

A wide class of models involve the fine--tuning of significant hierarchies between a strong--coupling ``compositeness'' scale, and a low energy dynamical symmetry breaking scale. We examine the issue of whether such hierarchies are generally endangered by Coleman--Weinberg instabilities. A careful study using perturbative two--loop renormalization group methods finds that consistent large hierarchies are not generally disallowed.

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