Top Quark Seesaw, Vacuum Structure and Electroweak Precision Constraints

Details Top Quark Seesaw, Vacuum Structure and Electroweak Precision Constraints Top Quark Seesaw, Vacuum Structure and Electroweak Precision Constraints

2001-08-03

arxiv.org/abs/hep-ph/0108041v3

Phys.Rev.D65:055006,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

73 pages, 26 Figures, Latex2e (minor refinements, one Fig added)

Scientific paper

10.1103/PhysRevD.65.055006

We present a complete study of the vacuum structure of Top Quark Seesaw models of the Electroweak Symmetry Breaking, including bottom quark mass generation. Such models emerge naturally from extra dimensions. We perform a systematic gap equation analysis and develop an improved broken phase formulation for including exact seesaw mixings. The composite Higgs boson spectrum is studied in the large-N_c fermion-bubble approximation and an improved renormalization group approach. The theoretically allowed parameter space is restrictive, leading to well-defined predictions. We further analyze the electroweak precision constraints. Generically, a heavy composite Higgs boson with a mass of ~1TeV is predicted, yet fully compatible with the precision data.

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