Antiproton fluxes from light neutralinos

Details Antiproton fluxes from light neutralinos Antiproton fluxes from light neutralinos

2005-07-07

arxiv.org/abs/hep-ph/0507086v1

Phys.Rev. D72 (2005) 083518

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 13 figures, subm. Phys. Rev. D

Scientific paper

10.1103/PhysRevD.72.083518

We analyze how the measurements of the low-energy spectrum of cosmic antiprotons can provide information on relic neutralinos. The analysis is focused on the light neutralinos which emerge in supersymmetric schemes where gaugino-mass unification is not assumed. We determine which ranges of the astrophysical parameters already imply stringent constraints on the supersymmetric configurations and those ranges which make the antiproton flux sensitive to the primary component generated by the neutralino self-annihilation. Our results are derived from some general properties of the antiproton flux proved to be valid for a generic cold dark matter candidate.

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