Matter and antimatter in the universe

2012/04/30 by Laurent Canetti, Marco Drewes, Mikhail Shaposhnikov · 4 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #astro-ph.CO #hep-ph

paper · pdf · doi:10.1088/1367-2630/14/9/095012

published as New J. Phys. 14 (2012) 095012 · Invited contribution to the New Journal of Physics Focus Issue "Origin of Matter" (New J. Phys. 14 (2012) 095012); this version is identical to the published article up to a few updates in the references

openalex publication_date 2012/09/17 · arxiv created 2012/11/05 · arxiv updated 2012/11/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We review observational evidence for a matter–antimatter asymmetry in the early universe, which leads to the remnant matter density we observe today. We also discuss bounds on the presence of antimatter in the present-day universe, including the possibility of a large lepton asymmetry in the cosmic neutrino background. We briefly review the theoretical framework within which baryogenesis, the dynamical generation of a matter–antimatter asymmetry, can occur. As an example, we discuss a testable minimal particle physics model that simultaneously explains the baryon asymmetry of the universe, neutrino oscillations and dark matter.

Citations

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Cited by

• Constraints on the composite photon theory
• Antimatter [wikipedia]
• Dark matter [wikipedia]
• Physical cosmology [wikipedia]