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Título: | Reloading the axion in a 3-3-1 setup |
Autor: | Dias, A.G.; Leite, J.; Valle, José W. F. CSIC ORCID; Vaquera-Araujo, Carlos A. | Fecha de publicación: | nov-2020 | Editor: | Elsevier BV | Citación: | PHYSICS LETTERS B 810: 135829 (2020) | Resumen: | We generalize the idea of the axion to an extended electroweak gauge symmetry setup. We propose a minimal axion extension of the Singer-Valle-Schechter (SVS) theory, in which the standard model fits in SU(3)⊗U(1), the number of families results from anomaly cancellation, and the Peccei-Quinn (PQ) solution to the strong-CP problem is implemented. Neutrino masses arise from a type-I Dirac seesaw mechanism, suppressed by the ratio of SVS and PQ scales, suggesting the existence of new physics at a moderate SVS scale. Novel features include an enhanced axion coupling to photons when compared to the DFSZ axion, as well as flavor-changing axion couplings to quarks. | Versión del editor: | http://dx.doi.org/10.1016/j.physletb.2020.135829 | URI: | http://hdl.handle.net/10261/233932 | DOI: | 10.1016/j.physletb.2020.135829 | Identificadores: | doi: 10.1016/j.physletb.2020.135829 issn: 0370-2693 |
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