Axion Paradigm with Color-Mediated Neutrino Masses
Abstract
We propose a generalized Kim-Shifman-Vainshtein-Zakharov-type axion framework in which colored fermions and scalars act as two-loop Majorana neutrino-mass mediators. The global Peccei-Quinn symmetry under which exotic fermions are charged solves the strong C P problem. Within our general proposal, various setups can be distinguished by probing the axion-to-photon coupling at helioscopes and haloscopes. We also comment on axion dark-matter production in the early Universe.
- Publication:
-
Physical Review Letters
- Pub Date:
- February 2024
- DOI:
- 10.1103/PhysRevLett.132.051801
- arXiv:
- arXiv:2309.06473
- Bibcode:
- 2024PhRvL.132e1801B
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 18 LaTeX pages