Electroweak scale neutrinos and Higgses

TL;DR

This paper introduces two models with electroweak scale right-handed neutrinos, exploring their scalar phenomenology and implications for Higgs physics within the Standard Model framework.

Contribution

It proposes two novel models incorporating electroweak scale right-handed neutrinos with detailed scalar sector analysis, including lepton number violation and doubly charged Higgs phenomenology.

Findings

Right-handed neutrinos can have electroweak scale masses in consistent models.

The scalar sector exhibits rich phenomenology, including lepton number violation.

Doubly charged Higgs states are analyzed for collider signatures.

Abstract

We present two different models with electroweak scale right-handed neutrinos. One of the models is created under the constraint that any addition to the Standard Model must not introduce new higher scales. The model contains right-handed neutrinos with electroweak scale masses and a lepton number violating singlet scalar field. The scalar phenomenology is also presented. The second model is a triplet Higgs model where again the right-handed neutrinos have electroweak scale masses. In this case the model has a rich scalar phenomenology and in particular we present the analysis involving the doubly charged Higgs.