Avatars of a Matter-Antimatter Universe
Astrophysics
2009-09-25 v1
Abstract
An elegantly symmetric Universe, consisting of large islands of matter and antimatter, is by no means obviously out of the question. I review the observations that lead to the usual prejudice that the Universe contains only matter. I discuss recent work inferring that this prejudice can be converted into an inescapable conclusion. I argue that our theoretical conviction should not discourage direct searches for antimatter in cosmic rays.
Cite
@article{arxiv.astro-ph/9705045,
title = {Avatars of a Matter-Antimatter Universe},
author = {Alvaro De Rujula},
journal= {arXiv preprint arXiv:astro-ph/9705045},
year = {2009}
}
Comments
15 pages, 5 Postscript figures. Based on a talk at the Jan. 1998 Moriond Meeting at Les Arcs, France