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Strong CP problem with low-energy emergent QCD: The 4321 case


Fuentes-Martín, Javier; Reig, Mario; Vicente, Avelino (2019). Strong CP problem with low-energy emergent QCD: The 4321 case. arXiv.org 1907.02550, University of Zurich.

Abstract

We analyze the strong CP problem and the implications for axion physics in the context ofU1vector leptoquark models, recently put forward as an elegant solution to the hints of lepton flavoruniversality violation inB-meson decays. It is shown that in minimal gauge models containing theU1as a gauge boson, the Peccei-Quinn solution of the strong CP problem requires the introductionof two axions. Characteristic predictions for the associated axions can be deduced from the modelparameter space hinted byB-physics, allowing the new axion sector to account for the dark matterof the Universe. We also provide a specific ultraviolet completion of the axion sector that connectsthe Peccei-Quinn mechanism to the generation of neutrino masses

Abstract

We analyze the strong CP problem and the implications for axion physics in the context ofU1vector leptoquark models, recently put forward as an elegant solution to the hints of lepton flavoruniversality violation inB-meson decays. It is shown that in minimal gauge models containing theU1as a gauge boson, the Peccei-Quinn solution of the strong CP problem requires the introductionof two axions. Characteristic predictions for the associated axions can be deduced from the modelparameter space hinted byB-physics, allowing the new axion sector to account for the dark matterof the Universe. We also provide a specific ultraviolet completion of the axion sector that connectsthe Peccei-Quinn mechanism to the generation of neutrino masses

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Additional indexing

Item Type:Working Paper
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2019
Deposited On:06 Jan 2020 15:40
Last Modified:06 Jan 2020 15:57
Series Name:arXiv.org
ISSN:2331-8422
OA Status:Green
Related URLs:https://arxiv.org/abs/1907.02550

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