Froggatt-Nielsen ALP

A bstract The Froggatt-Nielsen (FN) mechanism, a prominent framework for explaining the observed flavor hierarchies, generically predicts the existence of an axion-like particle (ALP). This work examines a class of FN models based on ℤ N discrete symmetries. We chart the allowed parameter space from...

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Bibliographic Details
Published in:The journal of high energy physics 2024-09, Vol.2024 (9), p.174-44, Article 174
Main Authors: Greljo, Admir, Smolkovič, Aleks, Valenti, Alessandro
Format: Article
Language:English
Subjects:
Axions and ALPs
Classical and Quantum Gravitation
Elementary Particles
Hierarchies
Neutrinos
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Quarks
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Symmetry
Theories of Flavour
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Summary:A bstract The Froggatt-Nielsen (FN) mechanism, a prominent framework for explaining the observed flavor hierarchies, generically predicts the existence of an axion-like particle (ALP). This work examines a class of FN models based on ℤ N discrete symmetries. We chart the allowed parameter space from a set of theoretical considerations and construct explicit renormalizable completions with minimal field content necessary to generate consistent textures. We then conduct comprehensive phenomenological analyses of two particularly elegant ℤ 4 and ℤ 8 models, highlighting the interplay between the effects of the ALP and the associated UV fields. We find that the FN scale can be as low as a few TeV.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP09(2024)174