2013/04/05 by P. M. Ferreira, L. Lavoura, P. O. Ludl
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Lepton #Lepton number #Mixing (physics) #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics theoretical and experimental studies #Pontecorvo–Maki–Nakagawa–Sakata matrix #Seesaw molecular geometry #Symmetry (geometry) #hep-ph
paper · pdf · doi:10.1007/jhep08(2013)113
17 pages, 4 figures
arxiv created 2013/04/05 · openalex publication_date 2013/08/01 · arxiv updated 2015/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We produce five flavour models for the lepton sector. All five models fit perfectly well---at the one-sigma level---the existing data on the neutrino mass-squared differences and on the lepton mixing angles. The models are based on the type-I seesaw mechanism, on a Z2 symmetry for each lepton flavour, and either on a (spontaneously broken) symmetry under the interchange of two lepton flavours or on a (spontaneously broken) CP symmetry incorporating that interchange---or on both symmetries simultaneously. Each model makes definite predictions both for the scale of the neutrino masses and for the phase delta in lepton mixing; the fifth model also predicts a correlation between the lepton mixing angles theta12 and theta23.