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Minimal supersymmetric fat Higgs model

2004; American Physical Society; Volume: 70; Issue: 1 Linguagem: Inglês

10.1103/physrevd.70.015002

1550-7998

Roni Harnik, Graham D. Kribs, Daniel T. Larson, Hitoshi Murayama,

Cosmology and Gravitation Theories

We present a calculable supersymmetric theory of a composite ``fat'' Higgs boson. Electroweak symmetry is broken dynamically through a new gauge interaction that becomes strong at an intermediate scale. The Higgs boson mass can easily be 200--450 GeV along with the superpartner masses, solving the supersymmetric little hierarchy problem. We explicitly verify that the model is consistent with precision electroweak data without fine-tuning. Gauge coupling unification can be maintained despite the inherently strong dynamics involved in electroweak symmetry breaking. Supersymmetrizing the standard model therefore does not imply a light Higgs boson mass, contrary to the lore in the literature. The Higgs sector of the minimal fat Higgs model has a mass spectrum that is distinctly different from that of the minimal supersymmetric standard model.