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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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Author(s):
Fonseca, N. [1, 2] ; de Lima, L. [1, 3] ; Machado, C. S. [3, 4] ; Matheus, R. D. [3]
Total Authors: 4
Affiliation:
[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: 22
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 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: 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
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