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Updated: May 6, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Baryogenesis and dark matter through a Higgs asymmetry
Géraldine Servant1, Sean Tulin
1CERN Physics Department, Theory Division, CH-1211 Geneva 23, Switzerland and ICREA at IFAE, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain and Institut de Physique Théorique, CEA/Saclay, F-91191 Gif-sur-Yvette Cédex, France.
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 boson 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 boson and discuss the associated signatures.
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