New tools for fermion masses from extra dimensions
156 citations recorded by the source corpus.
We present models in which the observed fermion masses and mixings are generated by dynamically localizing the three generations of matter in a flat compact extra dimension. We first construct models assuming the hierarchy problem is addressed by the existence of large extra dimensions, i.e. the fundamental scale is not far above a TeV and supersymmetry is not imposed. These models are compactified, chiral, and don't require fine-tuning to generate the top mass. Limits on the compactification scale based on flavor-changing neutral currents are relaxed compared to those on existing models. We then supersymmetrize some of these models. Using = 1 superspace language in extra dimensions, we find space-dependent flat directions which can be used to localize fields. Finally, we discuss methods of breaking supersymmetry and the impact of these models on the superpartner spectrum.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/c61271a3df3750fde693e76588320a09ac0e5a0c
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In Nuclear and High Energy Physics
Citations in the corpus
- Strong dynamics and electroweak symmetry breaking (2002, background): “Chiral fermions can be localized in the fifth dimension by background fields [464,499,500].”
- Proton stability in grand unified theories, in strings and in branes (2006, background): “Another approach to suppression of proton decay operators in extra dimensional models comes from fermion localization mechanism [301, 302, 303] where chiral fermions are localized in solitonic backgrounds [304].”