Composite Scalars at LEP: Constraining Technicolor Theories
Abstract
LEPI and LEPII data can be used to constrain technicolor models with light, neutral pseudo-Nambu-Goldstone bosons, Pa. We use published limits on branching ratios and cross sections for final states with photons, large missing energy, jet pairs, and b bbar pairs to constrain the anomalous Pa Z0 Z0, Pa Z0 photon, and Pa photon photon couplings. From these results, we derive bounds on the size of the technicolor gauge group and the number of technifermion doublets in models such as Low-scale Technicolor.
Keywords
Cite
@article{arxiv.hep-ph/0012256,
title = {Composite Scalars at LEP: Constraining Technicolor Theories},
author = {Kevin R. Lynch and Elizabeth H. Simmons},
journal= {arXiv preprint arXiv:hep-ph/0012256},
year = {2009}
}
Comments
27 pages (including title page), 15 figures, 6 tables. version 2: In addressing PRD referee comments, we have significantly expanded our manuscript, to include detailed discussion of limits from LEP II data, as well as expanding the number or specific models to which we apply our results. As a result, we have changed the title from "Z0 decays to composite scalars: constraining technicolor theories"