A four-loop Radiative Seesaw Model

TL;DR

This paper introduces a novel four-loop radiative neutrino mass model with a global hidden U(1) symmetry, addressing neutrino masses, muon g-2, dark matter relic density, and potential diphoton resonance signals.

Contribution

It presents a new four-loop radiative neutrino mass model incorporating a global hidden U(1) symmetry, linking neutrino masses, muon g-2, dark matter, and collider signals.

Findings

Neutrino masses generated at four-loop level.

Model can explain muon g-2 discrepancy.

Estimates dark matter relic density and diphoton resonance signals.

Abstract

We propose a new type of radiative neutrino model with global hidden $U(1)$ symmetry, in which neutrino masses are induced at the four loop level. Then we discuss the muon anomalous magnetic moment to solve the discrepancy between observation and the standard model prediction, and estimate the relic density of a fermion or boson DM candidate in the model. We also discuss the diphoton resonance $R$ by considering a process $pp \to R \to \gamma \gamma$ as a possible signal of our model.