Minimal model for the fermion flavor structure, mass hierarchy, dark matter, leptogenesis, and the electron and muon anomalous magnetic moments

TL;DR

This paper introduces a minimal, renormalizable model that explains fermion families, mass hierarchies, neutrino masses, dark matter, baryogenesis, and magnetic moments within a unified framework.

Contribution

It presents a minimal particle content model that accounts for multiple fundamental phenomena, including fermion masses, neutrino masses, dark matter, and matter-antimatter asymmetry.

Findings

Top quark and exotic fermions get tree-level masses.

Lighter SM fermions gain one-loop masses.

Tiny neutrino masses from inverse seesaw at one-loop.

Abstract

We propose a renormalizable theory with minimal particle content and symmetries, that successfully explains the number of Standard Model (SM) fermion families, the SM fermion mass hierarchy, the tiny values for the light active neutrino masses, the lepton and baryon asymmetry of the Universe, the dark matter relic density as well as the muon and electron anomalous magnetic moments. In the proposed model, the top quark and the exotic fermions do acquire tree-level masses whereas the SM charged fermions lighter than the top quark gain one-loop level masses. Besides that, the tiny masses for the light active neutrino are generated from an inverse seesaw mechanism at one-loop level.