# Probing the Majorana Nature in Radiative Neutrino mass models with the same-sign dilepton final states at future colliders

## TL;DR

This paper explores how future colliders can detect the Majorana nature of neutrinos in models where neutrino masses are generated radiatively at three loops, using same-sign dilepton signals.

## Contribution

It demonstrates the potential of future lepton colliders to probe the Majorana nature of neutrinos in three-loop radiative mass models through specific collider signatures.

## Key findings

- Same-sign dilepton production can indicate Majorana neutrinos.
- Future colliders like FCC-ee and ILC can test these models.
- Collider signals can distinguish between Majorana and Dirac neutrinos.

## Abstract

Neutrinos in the Standard Model (SM) are considered to be massless which is in contradiction with the evidence from the neutrino oscillation data. These experiments established that at least two SM neutrinos have non-zero masses and that individual lepton numbers are violated. This is strong evidence of new physics beyond the SM that should be responsible for generating non zero mass for the neutrinos. In this work, we study the collider phenomenology of an extension of the SM where neutrinos are generated radiatively at three-loop. We show that the production of same-sign dilepton at lepton colliders (such as FCC-ee and ILC) can be used to probe the Majorana nature of neutrinos in this class of models.