Baryogenesis model predicting antimatter in the Universe

Details Baryogenesis model predicting antimatter in the Universe Baryogenesis model predicting antimatter in the Universe

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003nuphs.122..404k&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 122, p. 404-408.

Physics

Nuclear Physics

1

Scientific paper

Cosmic ray and gamma-ray data do not rule out antimatter domains in the Universe, separated at distances bigger than 10 Mpc from us. Hence, it is interesting to analyze the possible generation of vast antimatter structures during the early Universe evolution.
We discuss a SUSY-condensate baryogenesis model, predicting large separated regions of matter and antimatter. The model provides generation of the small locally observed baryon asymmetry for a natural initial conditions, it predicts vast antimatter domains, separated from the matter ones by baryonically empty voids. The characteristic scale of antimatter regions and their distance from the matter ones is in accordance with observational constraints from cosmic ray, gamma-ray and cosmic microwave background anisotropy data.
Regular Associate of Abdus Salam ICTP, Trieste, Italy

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