Strong CP problem with low-energy emergent QCD: The 4321 case
Abstract
We analyze the strong CP problem and the implications for axion physics in the context of 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 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.
Keywords
Cite
@article{arxiv.1907.02550,
title = {Strong CP problem with low-energy emergent QCD: The 4321 case},
author = {Javier Fuentes-Martin and Mario Reig and Avelino Vicente},
journal= {arXiv preprint arXiv:1907.02550},
year = {2019}
}
Comments
6 pages, 3 figures. v2: Minor changes in the discussion. Conclusions unchanged. v3: New title. Matching the journal version