A Simple Model of two Little Higgses

Abstract

We construct a little Higgs model using a simple global symmetry group SU(9) spontaneously broken to SU(8). The electroweak interactions are extended to SU(3)xU(1) and embedded in SU(9). At the electroweak scale, our model is a two Higgs-doublet model. At the TeV scale, there are additional states, which are responsible for the cancellation of one loop quadratic divergences. We compute the effects of heavy states on the precision electroweak observables and find that the lower bounds on the masses of heavy gauge bosons and fermions are between 1 and 2 TeV.

14 pages; changed the normalization of f to ease comparison, fixed a bug in the fitting program which weakened the bound on f, extended discussion in section 3

References in corpus (5)

• Phenomenology of the Little Higgs Model
• Big Corrections from a Little Higgs
• Variations of Little Higgs Models and their Electroweak Constraints
• Loop induced decays of the Little Higgs: H --> gg, gamma gamma
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