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.

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

References in corpus (9)

• Dark Matter Results from 225 Live Days of XENON100 Data
• Leptogenesis
• Asymmetric Dark Matter
• Beyond Collisionless Dark Matter: Particle Physics Dynamics for Dark Matter Halo Structure
• Asymmetric Dark Matter from Leptogenesis
• Constraints on dark matter annihilation from CMB observations before Planck
• Gamma-ray lines and One-Loop Continuum from s-channel Dark Matter Annihilations
• Probing Charged Matter Through Higgs Diphoton Decay, Gamma Ray Lines, and EDMs
• The Effect of the Sparticle Mass Spectrum on the Conversion of B-L to B

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• Charged $B$ Mesogenesis
• Asymmetric Dark Matter Models in SO(10)
• Making the Universe at 20 MeV
• Erratum: Bounds on Invisible Higgs boson Decays from $t\bar{t}H$ Production
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• Dark Matter, Shared Asymmetries, and Galactic Gamma Ray Signals
• Minimal Asymmetric Dark Matter
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• Relic Gravitational Waves from the Chiral Plasma Instability in the Standard Cosmological Model
• Particle Asymmetries from Quantum Statistics
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• Filtered Baryogenesis
• Primordial high energy neutrinos: theoretical/observational constraints and sharp spectral features