N-Relaxion: Large Field Excursions from a Few Site Relaxion Model
arXiv:1601.07183 · doi:10.1103/PhysRevD.94.015010
Abstract
Relaxion models are an interesting new avenue to explain the radiative stability of the Standard Model scalar sector. They require very large field excursions, which are difficult to generate in a consistent UV completion and to reconcile with the compact field space of the relaxion. We propose an N-site model which naturally generates the large decay constant needed to address these issues. Our model offers distinct advantages with respect to previous proposals: the construction involves non-abelian fields, allowing for controlled high energy behaviour and more model building possibilities, both in particle physics and inflationary models, and also admits a continuum limit when the number of sites is large, which may be interpreted as a warped extra dimension.
7 pages, 2 figures; v2: version to appear in PRD
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- Naturalness of the relaxion mechanism
- Relaxion Dark Matter
- Relaxion window
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- Attracting the Electroweak Scale to a Tachyonic Trap
- A warped relaxion
- Cosmological Relaxation from Dark Fermion Production
- Probing photophobic (rel)axion dark matter
- Heterotic M-Theory from the Clockwork Perspective
- Light Higgs Boson from a Pole Attractor
- Mixing Particle Production for Relaxion Mechanism