Minimal rates for lepton flavour violation from supersymmetric leptogenesis

The see-saw is a very attractive model for neutrino mass generation in particular in association with supersymmetry as a solution to the hierarchy problem. Under the plausible assumptions of hierarchical neutrino Yukawa eigenvalues and the absence of cancellations, we derive an upper bound on the lightest right-handed neutrino mass from the non-observation of μ → eγ and μ-e conversion in nuclei. The ongoing experiment MEG as well as the planned experiments Mu2e, COMET and PRISM/PRIME will improve this bound if no evidence of lepton flavour violation is found. We lastly comment on the possibility of ruling out minimal leptogenesis if these experiments find no signal.