Scotogenic Froggatt-Nielsen and the Versatility of Soft Symmetry Breaking

TL;DR

This paper proposes a renormalizable model that explains quark and lepton mass patterns using the scotogenic mechanism with soft symmetry breaking, maintaining the standard model's single Higgs doublet.

Contribution

It introduces a novel approach combining the scotogenic mechanism with soft symmetry breaking to reproduce fermion mass patterns in a renormalizable framework.

Findings

Revised $A_4$ model for charged leptons and neutrinos

Demonstrates compatibility with standard model Higgs sector

Provides a new perspective on fermion mass generation

Abstract

Preserving the unique role of the one Higgs doublet of the standard model, it is proposed that quark and lepton mass patterns, often ascribed to the Froggatt-Nielsen mechanism using nonrenormalizable higher-dimensional terms, may be enforced in a renormalizable theory of just one Higgs doublet by the scotogenic mechanism with soft symmetry breaking in the dark sector. A revised version of the original $A_4$ model of charged leptons and neutrinos is discussed.