Natural Candidates for Superheavy Dark Matter in String and M Theory
High Energy Physics - Phenomenology
2009-09-11 v1 Astrophysics
Abstract
We reconsider superheavy dark matter candidates in string and M theory, in view of the possibility that inflation might generate superheavy particles with an abundance close to that required for a near-critical Universe. We argue that cryptons - stable or metastable bound states of matter in the hidden sector - are favoured over other possible candidates in string or theory, such as the Kaluza-Klein states associated with extra dimensions. We exhibit a specific string model that predicts cryptons as hidden-sector bound states weighing GeV, and discuss their astrophysical observability.
Cite
@article{arxiv.hep-ph/9803333,
title = {Natural Candidates for Superheavy Dark Matter in String and M Theory},
author = {Karim Benakli and John Ellis and Dimitri V. Nanopoulos},
journal= {arXiv preprint arXiv:hep-ph/9803333},
year = {2009}
}
Comments
4 pages, revtex, no figure