Indirect Evidence for Neutralinos as Dark Matter

Preprint

2 December 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0312037

Abstract

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.

Keywords

ANNIHILATION CROSS
INDIRECT EVIDENCE
RELIC DENSITY
NEUTRALINOS
DARK MATTER
ANTIPROTONS
GAMMA RAYS
WIMP

All Related Versions

Version 1, 2003-12-02, ArXiv
Published version: The European Physical Journal C, 33 (S1), s981.

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