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• W282956376 abstract "Two new observations have strengthened the case for the supersymmetric nature of the Cold Dark Matter component in our universe: First, it was shown that new data on the nuclear abundance, B/C - and 10Be/9Be ratios constrain the diffusion parameters in Galactic Models so strongly, that they lead to a clear deficiency in the production of diffuse hard gamma rays, antiprotons and hard positrons, if no anomalous sources or anomalous energy dependence of the diffusion coefficients are postulated. Second, from the precise 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 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-quarks) provide the correct shape and magnitude for the missing fluxes in the Galactic Models. The probability of a global fit to the galactic spectra of diffuse gamma rays, positrons and antiprotons improves from about 10^{-8} to 0.5, if Dark Matter, as predicted by Supersymmetry,is taken into account. This corresponds to about 6 sigma evidence for the supersymmetric nature of Dark Matter in case of Gaussian errors." @default.
• W282956376 created "2016-06-24" @default.
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• W282956376 date "2003-09-03" @default.
• W282956376 modified "2023-09-27" @default.
• W282956376 title "Indirect evidence for the supersymmetric nature of dark matter from the combined data on galactic positrons, anti-protons and gamma-rays" @default.
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• W282956376 hasPublicationYear "2003" @default.
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