Flavour and precision probes of a class of scotogenic models

TL;DR

This paper investigates how a specific class of scotogenic models affects flavor physics and precision electroweak measurements, providing detailed calculations and exploring future collider constraints.

Contribution

It offers a comprehensive NLO analysis of leptonic Higgs and Z decays in a particular scotogenic model variant and revisits previous constraints considering muon anomalous magnetic moment.

Findings

NLO corrections significantly impact leptonic decay predictions.

Revised constraints on model parameters from flavor and precision observables.

Future collider measurements can effectively probe this class of models.

Abstract

We address the phenomenological impact of a well-motivated class of scotogenic models regarding flavour and electroweak precision observables. For the case of a ``T1-2-A'' variant, we carry out a full computation of the next-to-leading order corrections to leptonic Higgs and $Z$-boson decays. We revisit previously drawn conclusions on operator dominance and constraints on the parameter space in view of the evolution regarding $\Delta a_\mu$. Finally, we consider the role of $H \to \mu\mu$ decays (and other flavour conserving Higgs decays), as well as precision observables in probing this class of models at future colliders.