Matter and antimatter in the universe

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.


Published in:
New Journal Of Physics, 14
Year:
2012
Publisher:
Bristol, Iop Publishing Ltd
ISSN:
1367-2630
Laboratories:




 Record created 2013-02-27, last modified 2018-09-13


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