A new A4 model for lepton mixing

2013/06/30 by P. M. Ferreira, L. Lavoura, Patrick Otto Ludl +1 · 3 citations
Physics and Astronomy · #Archaeology #Computer science #Dark Matter and Cosmic Phenomena #History #Neutrino Physics Research #Particle physics theoretical and experimental studies #Scroll #hep-ph

paper · pdf · doi:10.1016/j.physletb.2013.09.058

14 pages, 5 figures; typos corrected, comments added, references updated; version for publication in Phys. Lett. B

openalex publication_date 2013/10/02 · arxiv created 2013/10/14 · arxiv updated 2015/06/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present a new model of the lepton sector that uses a family symmetry A4 to make predictions for lepton mixing which are invariant under any permutation of the three flavours. We show that those predictions broadly agree with the experimental data, leading to a largish sin²(theta12) >~ 0.34, to |cos(delta)| >~ 0.7, and to | 0.5 - sin²(theta23) | >~ 0.08; cos(delta) and 0.5 - sin²(theta23) are predicted to have identical signs.

Citations

• Review of Particle Physics
• Theory and phenomenology of two-Higgs-doublet models
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Review of Particle Physics

Cited by

• Lepton mixing, residual symmetries, and trigonometric Diophantine equations
• TeV-scale resonant leptogenesis with new scaling ansatz on neutrino Dirac mass matrix from A4 flavor symmetry
• GAP listing of the finite subgroups of U (3) of order smaller than 2000