Signals of Supersymmetric Dark Matter

Details Signals of Supersymmetric Dark Matter Signals of Supersymmetric Dark Matter

1999-10-14

arxiv.org/abs/astro-ph/9910265v1

Indian J.Pure Appl.Phys. 38 (2000) 377

Astronomy and Astrophysics

Astrophysics

Latex file, 11 pages, no figures

Scientific paper

The Lightest Supersymmetric Particle predicted in most of the supersymmetric scenarios is an ideal candidate for the dark matter of cosmology. Their detection is of extreme significance today. Recently there have been intriguing signals of a 59 Gev neutralino dark matter at DAMA in Gran Sasso. We look at other possible signatures of dark matter in astrophysical and geological frameworks. The passage of the earth through dense clumps of dark matter would produce large quantities of heat in the interior of this planet through the capture and subsequent annihilation of dark matter particles. This heat would lead to large-scale volcanism which could in turn have caused mass extinctions. The periodicity of such volcanic outbursts agrees with the frequency of palaeontological mass extinctions as well as the observed periodicity in the occurrence of the largest flood basalt provinces on the globe. Binary character of these extinctions is another unique aspect of this signature of dark matter. In addition dark matter annihilations appear to be a new source of heat in the planetary systems.

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