A Three-loop Neutrino Mass Model with a Colored Triplet Scalar

TL;DR

This paper proposes a variation of the KNT neutrino mass model incorporating colored scalar fields, addressing anomalies, dark matter, and collider constraints with potential LHC detection prospects.

Contribution

It introduces a novel three-loop neutrino mass model with colored scalars, connecting neutrino mass generation to flavor anomalies and dark matter phenomenology.

Findings

Successfully fits $b\to s\mu\bar\mu$ anomalies

Achieves consistency with muon g-2 measurements

Identifies collider signatures for LHC detection

Abstract

We study a variation of the Krauss-Nasri-Trodden (KNT) model with a colored triplet scalar field and a colored singlet scalar field, in which we discuss the anomaly coming from $b\to s\mu\bar\mu$, fitting to the muon anomalous magnetic moment and the relic density of the Majorana-type dark matter candidate, as well as satisfying various constraints such as lepton-flavor violations and flavor-changing neutral currents. Also, we discuss the direct constraints from the collider searches and the possibilities of detecting the new fields at the LHC.