Axion Paradigm with Color-Mediated Neutrino Masses

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 CP problem. Within our general proposal, va...

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Bibliographic Details
Published inPhysical review letters Vol. 132; no. 5; p. 051801
Main Authors Batra, A, Câmara, H B, Joaquim, F R, Srivastava, R, Valle, J W F
Format Journal Article
LanguageEnglish
Published United States 02.02.2024
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Summary: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 CP 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.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.132.051801