Baryogenesis via Elementary Goldstone Higgs Relaxation

TL;DR

This paper explores how the relaxation mechanism can generate the matter-antimatter asymmetry within the Elementary Goldstone Higgs framework, leveraging its flat scalar potential directions for broader applicability.

Contribution

It extends the relaxation mechanism to the Elementary Goldstone Higgs model, identifying minimal ingredients for viability and demonstrating its potential to produce the observed baryon asymmetry.

Findings

Wider applicability of the relaxation mechanism compared to the Standard Model Higgs.

Feasibility of generating matter-antimatter asymmetry with a radiatively generated electroweak scale.

Identification of parameter space allowing successful baryogenesis.

Abstract

We extend the relaxation mechanism to the Elementary Goldstone Higgs framework. Besides studying the allowed parameter space of the theory we add the minimal ingredients needed for the framework to be phenomenologically viable. The very nature of the extended Higgs sector allows to consider very flat scalar potential directions along which the relaxation mechanism can be implemented. This fact translates into wider regions of applicability of the relaxation mechanism when compared to the Standard Model Higgs case. Our results show that, if the electroweak scale is not fundamental but radiatively generated, it is possible to generate the observed matter-antimatter asymmetry via the relaxation mechanism.