Technicolor in the LHC Era
Abstract
LHC searches for the standard model Higgs Boson in \gamma\gamma\ or \tau\tau\ decay modes place strong constraints on the light technipion state predicted in technicolor models that include colored technifermions. Compared with the standard Higgs Boson, the technipions have an enhanced production rate (largely because the technipion decay constant is smaller than the weak scale) and also enhanced branching ratios into di-photon and di-tau final states (largely due to the suppression of WW decays of the technipions). Recent ATLAS and CMS searches for Higgs bosons exclude the presence of technipions with masses from 110 GeV to nearly 2m_t in technicolor models that (a) include colored technifermions (b) feature topcolor dynamics and (c) have technicolor groups with three or more technicolors (N_{TC} > 3).
Keywords
Cite
@article{arxiv.1202.1505,
title = {Technicolor in the LHC Era},
author = {R. Sekhar Chivukula and Pawin Ittisamai and Jing Ren and Elizabeth H. Simmons},
journal= {arXiv preprint arXiv:1202.1505},
year = {2012}
}
Comments
15 pages, pdf figures embedded. Contribution to KMI Inauguration Conference "Quest for the Origin of Particles and the Universe" (KMIIN), 24-26 Nov. 2011, KMI, Nagoya University