Baryon Asymmetry and Dark Matter
High Energy Physics - Phenomenology
2009-10-31 v2 Astrophysics
Abstract
We study the implications of a large baryogenesis temperature, GeV), on the mass spectrum of superparticles in supersymmetric extensions of the standard model. Models with a neutralino as lightest superparticle (LSP) are excluded. A consistent picture is obtained with the gravitino as LSP, followed by a higgsino-like neutralino (NSP). Gravitinos with masses from 10 to 100 GeV may be the dominant component of dark matter.
Cite
@article{arxiv.hep-ph/9809381,
title = {Baryon Asymmetry and Dark Matter},
author = {M. Bolz and W. Buchmüller and M. Plümacher},
journal= {arXiv preprint arXiv:hep-ph/9809381},
year = {2009}
}
Comments
10 pages, 2 figures included, eq. (13) replaced by leading order approximation