Cosmic-ray antiprotons from neutralino annihilation in the halo

Details Cosmic-ray antiprotons from neutralino annihilation in the halo Cosmic-ray antiprotons from neutralino annihilation in the halo

1998-12-03

arxiv.org/abs/hep-ph/9812240v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 figures, to appear on the proceedings of the 2nd International Workshop on the Identification of Dark Matter, IDM98

Scientific paper

We report the main results of a paper where recent data of low-energy cosmic-ray $\bar p$ spectrum have been analyzed in terms of newly calculated fluxes for secondary antiprotons and for a possible contribution of an exotic signal due to neutralino annihilation in the galactic halo. We also present the results of a paper in which we have proved that a sizeable fraction of the supersymmetric neutralino configurations, singled out by the DAMA/NaI data on a possible annual modulation effect in WIMP direct search, may provide detectable cosmic-ray antiproton signals.

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