Probing Left-handed Heavy Neutral Leptons in the Vector Scotogenic Model

TL;DR

This paper investigates the production and detection of left-handed heavy neutral leptons within the vector scotogenic model, highlighting unique angular distributions that can distinguish these particles from background processes.

Contribution

It introduces a novel analysis of heavy neutral leptons in the vector scotogenic model, emphasizing the use of dilepton angular distributions as a key signature for detection.

Findings

Drell-Yan and Vector Boson Fusion production channels analyzed.

Distinct dilepton angular distribution identified as a signature.

Limits on model parameters established based on existing experimental data.

Abstract

In this work, we consider an extension to the Standard Model composed by a Massive Vector Doublet under SU(2)$_L$ and a Left-handed Heavy Neutral Lepton. We study the production of these exotic leptons with the Same Flavor Opposite Sign standard lepton pair, and jets, considering Drell-Yan and Vector Boson Fusion as independent cases. We find that for the latter, the dilepton angular distribution is different enough from the background to use it as a smoking-gun for our model. Based on this fact, we establish limits on the parameter space considering previous experimental searches in this final state.