Higgsogenesis
Abstract
In addition to explaining the masses of elementary particles, the Higgs boson may have far-reaching implications for the generation of the matter content in the Universe. For instance, the Higgs plays a key role in two main theories of baryogenesis, namely electroweak baryogenesis and leptogenesis. In this letter, we propose a new cosmological scenario where the Higgs chemical potential mediates asymmetries between visible and dark matter sectors, either generating a baryon asymmetry from a dark matter asymmetry or vice-versa. We illustrate this mechanism with a simple model with two new fermions coupled to the Higgs and discuss associated signatures.
Keywords
Cite
@article{arxiv.1304.3464,
title = {Higgsogenesis},
author = {Geraldine Servant and Sean Tulin},
journal= {arXiv preprint arXiv:1304.3464},
year = {2013}
}
Comments
5 pages, 2 figures; v2: Intro and conclusion improved, clarifications added, results unchanged. Compared to the PRL version, this arxiv version contains two extra plots, one additional table and a slightly longer conclusion