Antimatter in the Universe
Astrophysics
2009-11-07 v1 High Energy Physics - Phenomenology
Abstract
Different scenarios of baryogenesis are briefly reviewed from the point of view of possibility of generation of cosmologically interesting amount of antimatter. It is argued that creation of antimatter is possible and natural in many models. In some models not only anti-helium may be produced but also a heavier anti-elements and future observations of the latter would be critical for discovery or establishing stronger upper limits on existence of antimatter. Incidentally a recent observation of iron-rich quasar may present a support to one special model of antimatter creation.
Cite
@article{arxiv.astro-ph/0207441,
title = {Antimatter in the Universe},
author = {A. D. Dolgov},
journal= {arXiv preprint arXiv:astro-ph/0207441},
year = {2009}
}
Comments
18 pages, 2 figures; invited talks presented at Rencontres of La Thuile, 2002 and at SpacePart 2002, to be oublished in the Proceedings