2014/11/11 by Hernández, A. E. Cárcamo, S. Kovalenko, Kovalenko, Sergey +2
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.1411.2913
openalex publication_date 2014/11/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We propose a model based on the SU(5) grand unification with an extra Z2⊗ Z2′⊗ Z2′ ′⊗ Z4⊗ Z12 flavor symmetry, which successfully describes the observed SM fermion mass and mixing pattern. The observed quark mass and mixing pattern is caused by the Z4 and Z12 symmetries, which are broken at very high scale by the SU(5) scalar singlets σ and χ, charged respectively under these symmetries and which acquire VEVs at the GUT scale. The light neutrino masses are generated via a type I seesaw mechanism with three heavy Majorana neutrinos. The model has in total 17 effective free parameters, from which 2 are fixed and 15 are fitted to reproduce the experimental values of the 18 physical parameters in the quark and lepton sectors. The model predictions for both quark and lepton sectors are in excellent agreement with the experimental data.