Dark matter distribution in the universe and ultra-high energy cosmic rays

Details Dark matter distribution in the universe and ultra-high energy cosmic rays Dark matter distribution in the universe and ultra-high energy cosmic rays

2000-10-02

arxiv.org/abs/astro-ph/0010050v1

AIPConf.Proc.566:195-210,2001

Astronomy and Astrophysics

Astrophysics

15 pages, 7 figures. Invited Talk at the "International Workshop on observing UHECRs from space and earth", August 9-12, 2000,

Scientific paper

10.1063/1.1378632

Two of the greatest mysteries of modern physics are the origin of the dark matter in the universe and the nature of the highest energy particles in the cosmic ray spectrum. We discuss here possible direct and indirect connections between these two problems, with particular attention to two cases: in the first we study the local clustering of possible sources of ultra-high energy cosmic rays (UHECRs) driven by the local dark matter overdensity. In the second case we study the possibility that UHECRs are directly generated by the decay of weakly unstable super heavy dark matter.

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