2019/07/31 by Javier Fuentes-Martín, Javier Fuentes-Martin, Mario Reig +1
Physics and Astronomy · #Axion #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Lepton #Lepton number #Neutrino #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum chromodynamics #Strong CP problem #hep-ph
paper · pdf · doi:10.1103/physrevd.100.115028
published as Phys. Rev. D 100, 115028 (2019) · 6 pages, 3 figures. v2: Minor changes in the discussion. Conclusions unchanged. v3: New title. Matching the journal version
openalex publication_date 2019/12/17 · arxiv created 2019/12/19 · arxiv updated 2019/12/25 · openalex created_date 2019/12/26 · openalex updated_date 2026/08/06
We analyze the strong CP problem and the implications for axion physics in the context of U1 vector leptoquark models, recently put forward as an elegant solution to the hints of lepton flavor universality violation in B-meson decays. It is shown that in minimal gauge models containing the U1 as a gauge boson, the Peccei-Quinn solution of the strong CP problem requires the introduction of two axions. Characteristic predictions for the associated axions can be deduced from the model parameter space hinted by B-physics, allowing the new axion sector to account for the dark matter of the Universe. We also provide a specific ultraviolet completion of the axion sector that connects the Peccei-Quinn mechanism to the generation of neutrino masses.