Dirac neutrinos from Peccei-Quinn symmetry: Two examples

2020/01/31 by Leon M. G. de la Vega, Newton Nath, Eduardo Peinado
Physics and Astronomy · #Axion #Dark Matter and Cosmic Phenomena #Dark matter #Dirac (video compression format) #Mass generation #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Physics #Seesaw molecular geometry #Sterile neutrino #Symmetry (geometry) #WIMP #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2020.115099

11 pages, 4 figures ; v2: Version to appear in Nuclear Physics B, Section 2.2 has been expanded

arxiv created 2020/06/08 · openalex publication_date 2020/06/26 · arxiv updated 2020/08/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We aim to explain the nature of neutrinos using Peccei-Quinn symmetry. We discuss two simple scenarios, one based on a type-II Dirac seesaw and the other in a one-loop neutrino mass generation, which solve the strong CP problem and naturally lead to Dirac neutrinos. In the first setup latest neutrino mass limit gives rise to axion which is in the reach of conventional searches. Moreover, we have both axion as well as WIMP dark mater for our second set up.

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