Indirect Evidence for Neutralinos as Dark Matter

Details Indirect Evidence for Neutralinos as Dark Matter Indirect Evidence for Neutralinos as Dark Matter

2003-12-02

arxiv.org/abs/hep-ph/0312037v1

Eur.Phys.J.C33:s981-s983,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 figures, prepared for Proc. of EPS 2003 Conf. in Aachen, to be published in EPJ

Scientific paper

10.1140/epjcd/s2004-03-1757-x

From the relic density measurement by WMAP the WIMP annihilation cross section can be determined in a model independent way. If the WIMPS are postulated to be the neutralinos of Supersymmetry, then only a limited region of the supersymmetric parameter space matches this annihilation cross section. It is shown that the resulting positrons, antiprotons and gamma rays from the neutralino annihilation (mainly into b-bbar quark pairs) provide the correct shape and order of magnitude for the missing gamma and hard positron fluxes in the Galactic Models and are consistent with antiproton production.

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