LHC and Lepton Flavour Violation Phenomenology in Seesaw Models

TL;DR

This paper reviews lepton flavor violation phenomena in supersymmetric seesaw models and Left-Right models, highlighting their experimental implications at low energies and the LHC, and exploring how combined observations can reveal the underlying LFV mechanisms.

Contribution

It provides a comprehensive overview of LFV in various seesaw and Left-Right models, emphasizing the connection between high- and low-energy observables.

Findings

LFV processes are directly linked to neutrino mass generation mechanisms.

Experimental searches at low energies and the LHC can jointly constrain LFV models.

Confronting low- and high-energy data can shed light on the underlying LFV mechanisms.

Abstract

We review Lepton Flavour Violation (LFV) in the supersymmetric version of the seesaw mechanism (type I, II, III) and in Left-Right models. The LFV needed to explain neutrino masses and mixings is the only source of LFV and has experimental implications both in low-energy experiments where we search for the radiative decays of leptons, and at the LHC where we look at its imprint on the LFV decays of the sparticles and on slepton mass splittings. We discuss how this confrontation between high- and low-energy LFV observables may provide information about the underlying mechanism of LFV.