2010/06/30 by Takeshi Araki, Chao-Qiang Geng, C. Q. Geng · 11 citations
Mathematics · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Geometry #Hierarchy #Law #Mass matrix #Mathematics #Mixing (physics) #Neutrino #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Political science #Quantum mechanics #Symmetry (geometry) #Theoretical physics #hep-ph
paper · pdf · doi:10.1016/j.physletb.2010.09.046
published in Physics Letters B 694(2), 113-118 (Elsevier BV) · 12 pages, 1 figure; final version
openalex publication_date 2010/09/24 · arxiv created 2010/10/04 · arxiv updated 2014/11/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the Zee-Babu two-loop neutrino mass generation model and look for a possible flavor symmetry behind the tri-bimaximal neutrino mixing. We find that there probably exists the mu-tau symmetry in the case of the normal neutrino mass hierarchy, whereas there may not be in the inverted hierarchy case. We also propose a specific model based on a Froggatt-Nielsen-like Z5 symmetry to naturally accomplish the mu-tau symmetry on the neutrino mass matrix for the normal hierarchy case.