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arXiv · hep-ph/0410107

Flavor and electroweak symmetry breaking at the TeV scale

F. Bazzocchi·M. Fabbrichesi
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Abstract

We present a unified picture of flavor and electroweak symmetry breaking at the TeV scale. Flavor and Higgs bosons arise as pseudo-Goldstone modes in a nonlinear sigma model. Explicit collective symmetry breaking yields stable vacuum expectation values and masses protected at one loop by the little-Higgs mechanism. The coupling to the fermions through a Yukawa lagrangian with a U(1) global flavor symmetry generates well-definite mass textures that correctly reproduce the mass hierarchies and mixings of quarks and leptons. The model is more constrained than usual little- Higgs models because of bounds on weak and flavor physics. The main experimental signatures testable at the LHC are a rather large mass mh0 = 317+/-80 GeV for the (lightest) Higgs boson and a characteristic spectrum of new bosons and fermions with masses around the TeV scale.

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F. Bazzocchi, M. Fabbrichesi. 2004-10-07. Flavor and electroweak symmetry breaking at the TeV scale. https://doi.org/10.1016/j.nuclphysb.2005.03.004

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