Froggatt-Nielsen mechanism in a model with $SU(3{)}_c\times SU(3{)}_L\times U(1{)}_X$ gauge group

Abstract

The models with the gauge group $SU(3{)}_c\times SU(3{)}_L\times U(1{)}_X$ (331-models) have been advocated to explain why there are three fermion generations in Nature. As such they can provide partial understanding of the flavour sector. The hierarchy of Yukawa-couplings in the Standard Model is another puzzle which remains without compelling explanation. We propose to use Froggatt-Nielsen -mechanism in a 331-model to explain both fundamental problems. It turns out that no additional representations in the scalar sector are needed to take care of this. The traditional 331-models predict scalar flavour changing neutral currents at tree-level. We show that they are strongly suppressed in our model.

5 pages, published in PRD

References in corpus (3)

• Higgs-dependent Yukawa couplings
• Creating the Fermion Mass Hierarchies with Multiple Higgs Bosons
• Collider Phenomenology of the 3-3-1 Model

Cited by in corpus (11)

• Theoretical constraints on the Higgs potential of the general $331$ model
• Constraining heavy neutral gauge boson $Z^{\prime }$ in the 3 - 3 - 1 models by weak charge data of Cesium and proton
• Higgs and gauge boson phenomenology of the 3-3-1 model with CKS mechanism
• Dynamical Symmetry Breaking and Fermion Mass Hierarchy in the Scale-Invariant 3-3-1 Model
• $SU(5{)}_L\times U(1{)}_Y$ electroweak unification
• An extended 3-3-1 model with two scalar triplets and linear seesaw mechanism
• Weak charges in $SU(5{)}_L\times U(1{)}_Y$ gauge models
• Is our vacuum global in a 331 model with three triplets?
• Weak charges quantization in $SU(3{)}_c\otimes SU(n{)}_L\otimes U(1{)}_Y$ gauge models
• Explaining Fermions Mass and Mixing Hierarchies through $U(1{)}_X$ and $Z_2$ Symmetries
• Cosmic Collider Gravitational Waves sourced by Right-handed Neutrino production from Bubbles: Testing Seesaw, Leptogenesis and Dark Matter