Neutrino Physics, Lepton Flavour Violation and the LHC

TL;DR

This paper reviews lepton flavour violation phenomena, explores new physics models, and discusses how various observables can reveal the underlying mechanisms, especially focusing on SUSY seesaw effects at colliders.

Contribution

It introduces an analysis of how different lepton flavour violation observables can be used to distinguish underlying new physics models, with a focus on SUSY seesaw scenarios.

Findings

Interplay of observables constrains lepton flavour violation mechanisms.

Type-I SUSY seesaw impacts low-energy and collider signatures.

Different experiments provide complementary information on new physics.

Abstract

We briefly review flavour violation in the lepton sector: starting from neutrino oscillations and their implications, we consider several charged lepton flavour violating observables at high and low energies. We present new physics models and discuss the r\^ole of the latter in disentangling them. In particular, we show how the interplay of different observables allows to derive important information on the underlying mechanism of lepton flavour violation. As an example, we discuss the impact of a type-I SUSY seesaw concerning lepton flavour violation at low energies and at colliders (LHC and a future Linear Collider).