Composite Scalars at LEP: Constraining Technicolor Theories

Details Composite Scalars at LEP: Constraining Technicolor Theories Composite Scalars at LEP: Constraining Technicolor Theories

2000-12-19

arxiv.org/abs/hep-ph/0012256v2

Phys.Rev. D64 (2001) 035008

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages (including title page), 15 figures, 6 tables. version 2: In addressing PRD referee comments, we have significantly ex

Scientific paper

10.1103/PhysRevD.64.035008

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.

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