Visible GeV ALP from TeV Vector-like Leptons
A model is presented where a GeV axion-like-particle (ALP) is predicted in alarge portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry-breaking terms in an exotic leptonic sector. Thelatter provides a solution to the muon g − 2 anomaly, within the framework of th...
| Autores: | , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Recursos: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/717235 |
| Acesso em linha: | http://hdl.handle.net/10486/717235 https://dx.doi.org/10.1002/prop.202400165 |
| Access Level: | acceso abierto |
| Palavra-chave: | ALP Axions HNLs Neutrinos Física |
| Resumo: | A model is presented where a GeV axion-like-particle (ALP) is predicted in alarge portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry-breaking terms in an exotic leptonic sector. Thelatter provides a solution to the muon g − 2 anomaly, within the framework of the Linear Seesaw neutrino mechanism. The spectrum is extended by a complex scalar singlet only transforming under the PQ symmetry, which generates the ALP. Its couplings with fermions can continuously span overmany orders of magnitude, which constitutes a specific feature of this modelin contrast to generic ultraviolet constructions. Interestingly, these coupling sare suppressed by the ALP characteristic scale that can be as low as the TeVscale, which represents a novel feature of the model and opens up to several phenomenological consequences |
|---|