Phenomenology of LFV at low-energies and at the LHC: strategies to probe the SUSY seesaw

We study the impact of a type-I SUSY seesaw concerning lepton flavour violation (LFV) at low-energies and at the LHC. At the LHC, decays, in combination with other observables, render feasible the reconstruction of the masses of the intermediate sleptons, and hence the study of ℓi−ℓj mass differences. If interpreted as being due to the violation of lepton flavour, high-energy observables, such as large slepton mass splittings and flavour violating neutralino and slepton decays, are expected to be accompanied by low-energy manifestations of LFV such as radiative and three-body lepton decays. We discuss how to devise strategies based in the interplay of slepton mass splittings as might be observed at the LHC and low-energy LFV observables to derive important information on the underlying mechanism of LFV. This contribution summarises part of the work of A. Abada, A.J.R. Figueiredo, J.C. Romao, A.M. Teixeira, JHEP 1010 (2010) 104.