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Reloading the Axion in a 3-3-1 setup

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arxiv 2008.10650 v2 pith:2FFXH3R2 submitted 2020-08-24 hep-ph hep-exhep-th

Alex G. Dias , Julio Leite , José W. F. Valle , Carlos A. Vaquera-Araujo This is my paper · ORCID
classification hep-phhep-exhep-th
keywords axionsetupanomalyarisecancellationcomparedcouplingcouplings
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abstract

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 $\mathrm{SU(3)_L\otimes U(1)_X}$, 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 flavour-changing axion couplings to quarks.

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  1. Axion framework with color-mediated Dirac neutrino masses

    hep-ph 2025-01 conditional novelty 5.0 of 10

    A KSVZ-type axion framework generates Dirac neutrino masses through colored vector-like quarks and leptoquarks, linking neutrino mass, strong CP, and dark matter.

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