Axino dark matter in brane world cosmology

Details Axino dark matter in brane world cosmology Axino dark matter in brane world cosmology

2005-06-09

arxiv.org/abs/hep-ph/0506093v2

JCAP 0508 (2005) 005

Physics

High Energy Physics

High Energy Physics - Phenomenology

1+11 pages, version submitted to JCAP

Scientific paper

10.1088/1475-7516/2005/08/005

We discuss dark matter in the brane world scenario. We work in the Randall-Sundrum type II brane world and assume that the lightest supersymmetric particle is the axino. We find that the axinos can play the role of cold dark matter in the universe, provided that the five-dimensional Planck mass is bounded both from below and from above. This is possible for higher reheating temperatures compared to the conventional four-dimensional cosmology due to a novel expansion law for the universe.

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