Natural neutrino sector in a 331-model with Froggatt-Nielsen mechanism

Abstract

The extensions of the Standard Model based on the $SU(3{)}_c\times SU(3{)}_L\times U(1{)}_X$ gauge group (331-models) have been advocated to explain the number of fermion families in nature. It has been recently shown that the Froggatt-Nielsen mechanism, a popular way to explain the mass hierarchy of the charged fermions, can be incorporated into the 331-setting in an economical fashion (FN331). In this work we extend the FN331-model to include three right-handed neutrino singlets. We show that the seesaw mechanism is realized in this model. The scale of the seesaw mechanism is near the $SU(3{)}_L\times U(1{)}_X$-breaking scale. The model we present here simultaneously explains the mass hierarchy of all the fermions, including neutrinos, and the number of families.

arXiv comment26 pages, published in JHEP

References in corpus (7)

• The Search for Heavy Majorana Neutrinos
• $\mbox{SU}(3)_L \otimes \mbox{U}(1)_N$ and $\mbox{SU}(4)_L \otimes \mbox{U}(1)_N$ gauge models with right-handed neutrinos
• Non-Unitarity, sterile neutrinos, and Non-Standard neutrino Interactions
• The Scalar Sector of 3-3-1 Models
• A flipped 331 model
• The simplest 3-3-1 model
• Suppression of scalar mediated FCNCs in a $SU(3{)}_c\times SU(3{)}_L\times U(1{)}_X$-model

Cited by in corpus (4)

• Suppression of scalar mediated FCNCs in a $SU(3{)}_c\times SU(3{)}_L\times U(1{)}_X$-model
• Dynamical Symmetry Breaking and Fermion Mass Hierarchy in the Scale-Invariant 3-3-1 Model
• $SU(3{)}_C\times SU(3{)}_L\times U(1{)}_X$ model from $SU(6)$
• An extended 3-3-1 model with two scalar triplets and linear seesaw mechanism