Leptogenesis and Low-energy Observables

TL;DR

This paper explores how leptogenesis, the process explaining matter-antimatter asymmetry, can be linked to low-energy observables within flavor models, especially those with texture zeros in Yukawa couplings.

Contribution

It highlights the specific conditions under which leptogenesis can be connected to low-energy measurements, focusing on flavor models with texture zeros.

Findings

Connection exists only within flavor models.

Texture zeros in Yukawa couplings are crucial.

Framework clarifies when low-energy data inform leptogenesis.

Abstract

We address the question of how to establish a connection between leptogenesis and low energy observables. We emphasize that such a connection only exists in the framework of flavour models. A particular example is the case of texture zeros in some of the Yukawa couplings.