Matter-antimatter domains in the universe

Details Matter-antimatter domains in the universe Matter-antimatter domains in the universe

2000-12-10

arxiv.org/abs/hep-ph/0012107v2

Nucl.Phys.Proc.Suppl. 95 (2001) 42-46

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited Talk at EuroConference on Frontiers in Particle Astrophysics and Cosmology, San Feliu de Guixols, Spain, 30 September

Scientific paper

10.1016/S0920-5632(01)01051-9

A possible existence of cosmologically large domains of antimatter or astronomical ``anti-objects'' is discussed. A brief review of different scenarios of baryogenesis predicting a noticeable amount of antimatter is given. Though both theory and observations indicate that the universe is most possibly uniformly charge asymmetric without any noticeable amount of antimatter, several natural scenarios are possible that allow for cosmologically (astronomically) interesting objects in close vicinity to us. The latter may be discovered by observation of cosmic ray antinuclei.

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