Heavy Neutrinos at Future Colliders

TL;DR

This paper reviews the potential of future colliders to discover heavy neutrinos, emphasizing their importance in confirming the seesaw mechanism for neutrino mass and comparing sensitivities of hadron and lepton colliders.

Contribution

It provides a comprehensive analysis of current limits and future prospects for heavy neutrino searches at different collider types, highlighting the advantages of lepton colliders.

Findings

Future lepton colliders offer unparalleled sensitivity for heavy neutrino detection.

Current collider limits are summarized and potential improvements discussed.

Lepton colliders could play a crucial role in confirming the seesaw paradigm.

Abstract

We discuss the current status and future prospects of heavy neutrino searches at the energy frontier, which might play an important role in vindicating the simplest seesaw paradigm as the new physics responsible for neutrino mass generation. After summarizing the current search limits and potential improvements at hadron colliders, we highlight the unparalleled sensitivities achievable in the clean environment of future lepton colliders.