N-Relaxion: Large Field Excursions from a Few Site Relaxion Model
| Autor: | Fonseca, Nayara, de Lima, Leonardo, Machado, Camila S., Matheus, Ricardo D. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 94, 015010 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.94.015010 |
| Popis: | 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. Comment: 7 pages, 2 figures; v2: version to appear in PRD |
| Databáze: | arXiv |
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