Heavy Neutrinos and Lepton Flavour Violation in Left-Right Symmetric Models at the LHC

TL;DR

This paper explores the potential of the LHC to detect lepton flavor violation caused by heavy right-handed neutrinos in left-right symmetric models, highlighting the complementarity with low-energy searches.

Contribution

It provides a detailed analysis of the LHC's sensitivity to heavy neutrino parameters and compares it with low-energy LFV experiments, identifying promising regions for discovery.

Findings

LHC can probe heavy neutrino masses at the TeV scale.

Complementarity between high-energy collider and low-energy LFV searches.

Identification of parameter space regions accessible to future experiments.

Abstract

We discuss lepton flavour violating processes induced in the production and decay of heavy right-handed neutrinos at the LHC. Such particles appear in left-right symmetrical extensions of the Standard Model as the messengers of neutrino mass generation, and can have masses at the TeV scale. We determine the expected sensitivity on the right-handed neutrino mixing matrix, as well as on the right-handed gauge boson and heavy neutrino masses. By comparing the sensitivity of the LHC with that of searches for low energy LFV processes, we identify favourable areas of the parameter space to explore the complementarity between LFV at low and high energies.