Vector-like Strong Coupling theory with small S and T parameters
High Energy Physics - Phenomenology
2017-02-01 v1
Abstract
We propose a mechanism which can reduce the Peskin and Takeuchi's S, T and U parameters in dynamical electroweak symmetry breaking models. It is interesting that not only S but also T parameter can become small even if there exists large isospin violation in fermion condensation. For example, when we take the breaking mass of up-type fermion TeV and that of down-type , we get S and T for the invariant masses TeV. The point is that these parameters are suppressed by invariant masses which the vector-like fermions can have.
Cite
@article{arxiv.hep-ph/9406375,
title = {Vector-like Strong Coupling theory with small S and T parameters},
author = {Nobuhiro Maekawa},
journal= {arXiv preprint arXiv:hep-ph/9406375},
year = {2017}
}