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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Large field excursions from a few site relaxion model

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Fonseca, N. [1, 2] ; de Lima, L. [1, 3] ; Machado, C. S. [3, 4] ; Matheus, R. D. [3]
Total Authors: 4
[1] DESY, Notkestr 85, D-22607 Hamburg - Germany
[2] Univ Sao Paulo, Inst Fis, Rua Matao 1371, Cidade Univ, BR-05508090 Sao Paulo - Brazil
[3] Univ Estadual Paulista, Inst Fis Teor, R Dr Bento Teobaldo Ferraz, 271 Bloco 2, BR-01140070 Sao Paulo - Brazil
[4] CERN, Theory Div, CH-1211 Geneva 23 - Switzerland
Total Affiliations: 4
Document type: Journal article
Source: Physical Review D; v. 94, n. 1 JUL 7 2016.
Web of Science Citations: 20

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 behavior 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. (AU)

FAPESP's process: 12/21627-9 - The leptonic sector in Quiver Gauge Theories: theory and phenomenology
Grantee:Camila Sampaio Machado
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/15361-4 - Non-minimal dark matter models and beyond standard model physics
Grantee:Nayara Fonseca de Sá
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 13/01907-0 - São Paulo Research and Analysis Center
Grantee:Sergio Ferraz Novaes
Support type: Research Projects - Thematic Grants
FAPESP's process: 12/21436-9 - Hierarchical quiver Gauge theories: model building and phenomenology
Grantee:Leonardo de Lima
Support type: Scholarships in Brazil - Post-Doctorate