Cold and Hot Dark Matter from a Single Nonthermal Relic
High Energy Physics - Phenomenology
2009-10-31 v1 Astrophysics
Abstract
The origin of dark matter in the universe may be scalar particles produced by amplification of quantum fluctuations during a period of dilaton-driven inflation. We show, for the first time, that a single species of particles, depending on its mass and interactions, can be a source of both cold and hot dark matter simultaneously. Detection of such weakly interacting particles with masses below a fraction of an eV presents a new challenge for dark matter searches.
Keywords
Cite
@article{arxiv.hep-ph/9810526,
title = {Cold and Hot Dark Matter from a Single Nonthermal Relic},
author = {Ram Brustein and Merav Hadad},
journal= {arXiv preprint arXiv:hep-ph/9810526},
year = {2009}
}
Comments
10 pages, 1 figure