A Simple Model of two Little Higgses

Details A Simple Model of two Little Higgses A Simple Model of two Little Higgses

2003-05-27

arxiv.org/abs/hep-ph/0305302v2

Phys.Rev.D68:075001,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.68.075001

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.

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