Cold and Hot Dark Matter from a Single Nonthermal Relic

Details Cold and Hot Dark Matter from a Single Nonthermal Relic Cold and Hot Dark Matter from a Single Nonthermal Relic

1998-10-29

arxiv.org/abs/hep-ph/9810526v1

Phys.Rev.Lett. 82 (1999) 3016-3019

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.82.3016

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.

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