Matter-antimatter domains in the universe
Abstract
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.
Cite
@article{arxiv.hep-ph/0012107,
title = {Matter-antimatter domains in the universe},
author = {A. D. Dolgov},
journal= {arXiv preprint arXiv:hep-ph/0012107},
year = {2009}
}
Comments
Invited Talk at EuroConference on Frontiers in Particle Astrophysics and Cosmology, San Feliu de Guixols, Spain, 30 September - 5 October 2000; 7 pages; latex; two references are added