Phenomenology of TeV Scale See-Saw Mechanism

TL;DR

This paper reviews how TeV scale see-saw models of neutrino mass can be constrained by current collider and low energy experiments, highlighting correlations that could indirectly confirm the mechanism.

Contribution

It provides an analysis of low energy constraints and flavor correlations in TeV scale see-saw models, connecting collider searches with neutrino oscillation data.

Findings

Low energy observables are correlated with neutrino oscillation parameters.

TeV scale see-saw models can be probed at current colliders.

Distinct flavor signatures may indicate the presence of heavy right-handed neutrinos.

Abstract

We review the low energy constraints on type I see-saw extensions of the Standard Model in which the scale of new physics, associated to lepton number violation, can be probed at current collider searches. In such scenarios, the flavour structure of the charged current and neutral current weak interactions of the Standard Model leptons with the heavy right-handed neutrinos, which provide the contribution of new physics, is essentially determined by the neutrino oscillation parameters. Correlations among different low energy observables in the lepton sector emerge, which may provide a striking indirect evidence of low energy (TeV scale) see-saw mechanism.