Lepton Flavour Effects and Resonant Leptogenesis

TL;DR

This paper discusses how lepton flavor effects influence resonant leptogenesis at the electroweak scale, highlighting potential observable signals in low-energy experiments and colliders.

Contribution

It introduces minimal models where flavor effects enable successful leptogenesis with large couplings, connecting high-energy processes to low-energy observables.

Findings

Lepton flavor effects are crucial for resonant leptogenesis.

Large couplings between charged leptons and heavy neutrinos are possible.

Potential signals could be observed in experiments like MEG, MECO, PRIME, and future colliders.

Abstract

Minimal models exist in which thermal, resonant leptogenesis occurs at the electroweak scale. The effects of individual lepton flavours play a crucial role and allow successful leptogenesis with large couplings between some of the charged leptons and the heavy Majorana neutrinos. This leads to potentially observable signals for low energy experiments (such as MEG, MECO and PRIME) and future linear colliders.