A heavy little Higgs and a light Z' under the radar
Michael S. Chanowitz
TL;DR
This paper examines a variant of the littlest Higgs model, showing it aligns with electroweak data but faces collider constraints, and discusses potential signals of a light Z' boson.
Contribution
It identifies a version of the littlest Higgs model compatible with data and explores the phenomenology of a light Z' boson within collider constraints.
Findings
The model is consistent with precision electroweak data.
Collider limits strongly constrain the Z' boson mass.
A possible Z' signal at 240 GeV aligns with predictions.
Abstract
The original littlest Higgs model with universal fermion couplings is found to be consistent with precision electroweak data but is strongly constrained by Tevatron limits on the predicted centi-weak Z' boson. A possible signal observed by CDF at 240 GeV is consistent with the predicted Z' and a region below 150 GeV is largely unconstrained by collider data.
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