Flavor unification, dark matter, proton decay and other observable predictions with low-scale $S_4$ symmetry

recently proposed by Hagedorn, Lindner, and Mohapatra, while assigning matter-parity discrete symmetry for the dark matter stability. For gauge coupling unification in the single-step breaking case, we show that a color-octet fermion and a hyperchargeless weak-triplet fermionic dark matter are the missing particles needed to complete its MSSM-equivalent degrees of freedom. When these are included the model automatically predicts the nonsupersymmetric grand unification with a scale identical to the minimal supersymmetric standard model/grand unified theory scale. We also find a two-step breaking model with Pati-Salam intermediate symmetry where the dark matter and a low-mass color-octet scalar or the fermion are signaled by grand unification. The proton-lifetime predictions are found to be accessible to ongoing or planned searches in a number of models. We discuss grand unified origin of the light fermionic triplet dark matter, the color-octet fermion, and their phenomenology.

12.15.Ff
12.60.Cn
12.10.Dm
Flavor symmetries
Grand unification
Proton decay
Intermediate symmetry
Fermionic dark matter
p: lifetime
threshold: effect

References(0)

Figures(6)

Loading ...

Flavor unification, dark matter, proton decay and other observable predictions with low-scale S4S_4S4​ symmetry

Citations per year

Flavor unification, dark matter, proton decay and other observable predictions with low-scale $S_4$ symmetry