The high-scale SUSY seesaw: LHC vs low energy

TL;DR

This paper explores how measurements of slepton mass differences and lepton flavor violation can test the validity of high-scale supersymmetric seesaw models for neutrino masses.

Contribution

It analyzes the correlation between slepton mass splittings and lepton flavor violation to evaluate high-scale seesaw models using combined low-energy and collider data.

Findings

Correlations can distinguish high-scale seesaw scenarios

Low-energy lepton flavor violation constrains supersymmetric models

Slepton mass splittings provide complementary information

Abstract

In this contribution we outline the correlation between intergenerational slepton mass splittings and low energy lepton flavour violation in supersymmetric type-I and type-III seesaws, and illustrate how the combination of these two sets of observables could strengthen or disfavour a high-scale seesaw as the explanation of neutrino masses and mixings. This contribution summarises part of the analysis presented in arXiv:1007.4833 and arXiv:1104.3962.