The Inert Zee Model

TL;DR

This paper presents a minimal inert Zee model that generates neutrino masses via one-loop diagrams, incorporates a dark matter candidate, and remains consistent with experimental constraints on flavor violation, oblique parameters, and dark matter.

Contribution

It introduces a novel minimal inert Zee model with vector-like fermions and an exact Z2 symmetry, linking neutrino mass generation and dark matter.

Findings

Model successfully explains neutrino oscillations.

Dark matter candidate is compatible with current constraints.

Consistent with lepton flavor violation and electroweak precision data.

Abstract

We study a realization of the topology of the Zee model for the generation of neutrino masses at one-loop with a minimal set of vector-like fermions. After imposing an exact $Z_2$ symmetry to avoid tree-level Higgs-mediated flavor changing neutral currents, one dark matter candidate is obtained from the subjacent inert doublet model, but with the presence of new co-annihilating particles. We show that the model is consistent with the constraints coming from lepton flavor violation processes, oblique parameters, dark matter and neutrino oscillation data.