The electroweak S and T parameters from a fixed point condition
High Energy Physics - Phenomenology
2011-07-29 v1 High Energy Physics - Theory
Abstract
We consider the standard model without the Higgs boson, where the Goldstone modes are described by a nonlinear sigma model. We study the renormalization group flow of the sigma model coupling f and of the electroweak parameters S and T. The condition that the couplings reach a fixed point at high energy leaves the low energy values of f and T arbitrary (to be determined experimentally) and fixes S to a value compatible with electroweak precision data.
Cite
@article{arxiv.1102.2113,
title = {The electroweak S and T parameters from a fixed point condition},
author = {M. Fabbrichesi and R. Percacci and A. Tonero and L. Vecchi},
journal= {arXiv preprint arXiv:1102.2113},
year = {2011}
}
Comments
4 pages, 2 figures