Topcolor in the LHC Era
Abstract
Ongoing LHC searches for the standard model Higgs Boson in WW or ZZ decay modes strongly constrain the top-Higgs state predicted in many models with new dynamics that preferentially affects top quarks. Such a state couples strongly to top-quarks, and is therefore produced through gluon fusion at a rate that can be greatly enhanced relative to the rate for the standard model Higgs boson. As we discuss in this talk, a top-Higgs state with mass less than 300 GeV is excluded at 95% CL if the associated top-pion has a mass of 150 GeV, and the constraint is even stronger if the mass of the top-pion state exceeds the top-quark mass or if the top-pion decay constant is a substantial fraction of the weak scale. These results have significant implications for theories with strong top dynamics, such as topcolor-assisted technicolor, top-seesaw models, and certain Higgsless models.
Keywords
Cite
@article{arxiv.1112.3538,
title = {Topcolor in the LHC Era},
author = {Elizabeth H. Simmons and R. Sekhar Chivukula and Baradhwaj Coleppa and Heather E. Logan and Adam Martin},
journal= {arXiv preprint arXiv:1112.3538},
year = {2011}
}
Comments
15 pages, 5 figures. Contribution to KMI Inauguration Conference "Quest for the Origin of Particles and the Universe" (KMIIN), 24-26 Nov. 2011, KMI, Nagoya University