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

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arxiv 1210.5568 v2 pith:L7FFIEYJ submitted 2012-10-20 hep-ph hep-th

classification hep-phhep-th
keywords theoriesmassquiverelectroweakfermionfull-hierarchygaugelarge
verification ladder T0 review T1 audit T2 compute T3 formal
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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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Cited by 2 Pith papers

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  1. Deconstructing the Extra-Dimensional Axion

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    A 4D moose gauge theory with gauged WZW term deconstructs the 5D orbifold axion, reproducing its shift symmetry, instanton effects, and quality features via collective PNGB dynamics.

  2. Inequalities for Standard Model Yukawa Couplings

    hep-ph 2025-06 conditional novelty 6.0 of 10

    The paper proves rigorous, basis-independent inequalities on combinations of Standard Model Yukawa matrix entries that follow from the observed hierarchical fermion masses and CKM angles.

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