Cold Dark Matter Candidate in a Class of Supersymmetric Models with an Extra U(1)
High Energy Physics - Phenomenology
2009-10-30 v1
Abstract
In supersymmetric models whose gauge group includes an additional U(1) factor at the TeV scale, broken by the VEV of an standard model singlet S, the parameter space can accommodate a very light neutralino not ruled out experimentally. This higgsino-like fermion, stable if R-parity is conserved, can make a good cold dark matter candidate. We examine the thermal relic density of this particle and discuss the prospects for its direct detection if it forms part of our galactic halo.
Keywords
Cite
@article{arxiv.hep-ph/9705315,
title = {Cold Dark Matter Candidate in a Class of Supersymmetric Models with an Extra U(1)},
author = {B. de Carlos and J. R. Espinosa},
journal= {arXiv preprint arXiv:hep-ph/9705315},
year = {2009}
}
Comments
13 pages, LaTex, uses psfig.sty with 3 figures