A Grand Unified model with Q6 as the flavour symmetry

18th International Symposium on Particles Strings and Cosmology

Gómez-Izquierdo, J.C.^1 ; Canales, F. Gonzá^1,2 ; Mondragón, M.^1

Instituto de Física, Universidad Nacional Autónoma de México, D.F., México 01000, Mexico^1

Facultad de Ciencias de la Electrónica, Benemérita Universidad Autónoma de Puebla, Apdo. Postal 157, Pue., México 72570 Puebla, Mexico^2

关键词: CKM matrix;    Mixing angle;    Neutrino mass;    Sum rule;    Unified Modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/485/1/012057/pdf
DOI  :  10.1088/1742-6596/485/1/012057

来源: IOP

【 摘 要 】

We present a non-minimal renormalizable SUSY SU(5) model where the flavour sector exhibits a Q6flavour symmetry, and R-parity is conserved. We find that the CKM matrix has an NNI and a Fritzsch texture for the down and up sectors respectively, both of which are known to be compatible with the experimental CKM values. At the same time, in the leptonic side, the model predicts a strong inverted hierarchy spectrum and a sum rule among the neutrino masses. As main results, the atmospheric (θth2346.18+0.66-0.65) and solar (θth1236.62 ± 4.06.) mixing angles are found to be consistent with the experimental data. However, the reactor mixing angle value, θth133.38+0.03-0.02, is small and not in good agreement with the global experimental fits, but it is consistent with the MINOS experiment and fairly large in comparison to the tribimaximal scenario.