English

A Topcolor Jungle Gym

High Energy Physics - Phenomenology 2009-09-11 v1

Abstract

We discuss an alternative to the topcolor seesaw mechanism. In our scheme, all the light quarks carry topcolor, and there are many composite SU(2) doublets. This makes it possible to get the observed top quark mass and observed SU(2)×U(1)SU(2) \times U(1) breaking in a way that is quite different from the classic seesaw mechanism. We discuss a model of this kind that arises naturally in the context of dynamically broken topcolor. There are many composite scalars in a theory of this kind. This has important effects on the Pagels-Stokar relation and the Higgs mass. We find mHiggs<330m_{\rm Higgs} < 330 GeV, lighter than in typical topcolor models. We also show that the electroweak singlet quarks in such a model can be lighter than the corresponding quarks in a seesaw model.

Keywords

Cite

@article{arxiv.hep-ph/0006050,
  title  = {A Topcolor Jungle Gym},
  author = {Howard Georgi and Aaron K. Grant},
  journal= {arXiv preprint arXiv:hep-ph/0006050},
  year   = {2009}
}

Comments

23 pages, LaTeX, uses epsf and psfig