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arXiv · 1210.5568

Full-hierarchy Quiver Theories of Electroweak Symmetry Breaking and Fermion Masses

Gustavo Burdman·Nayara Fonseca·Leonardo de Lima
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Abstract

We consider quiver theories in four dimensions with a large ultra-violet cutoff. These theories require that an ordered set of vacuum expectation values for the link fields develops dynamically and can be obtained from the coarse deconstruction of extra-dimensional theories in an AdS background. These full-hierarchy quiver theories form a large class which include AdS$_5$ models as a limit, but which have a distinctive phenomenology. As an example, in this paper we show that fermions can be introduced in a way that can at the same time generate the fermion mass hierarchy and have flavor violation consistent with experimental bounds, when the mass scale of the color-octect gauge excitation is above $3 {\rm TeV}$. We also show that electroweak precision constraints are satisfied by this mass scale, without the need to extend the gauge sector to protect against custodial violation.

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Gustavo Burdman, Nayara Fonseca, Leonardo de Lima. 2012-10-20. Full-hierarchy Quiver Theories of Electroweak Symmetry Breaking and Fermion Masses. https://doi.org/10.1007/jhep01(2013)094

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