publication . Preprint . 1999

Cosmic antiprotons as a probe for neutralino dark matter?

Bergstrom, Lars; Edsjo, Joakim; Ullio, Piero;
Open Access English
  • Published: 02 Jun 1999
Abstract
The flux of cosmic ray antiprotons from neutralino annihilations in the galactic halo is computed for a large sample of models in the Minimal Supersymmetric extension of the Standard Model. We also revisit the problem of estimating the background of low-energy cosmic ray induced secondary antiprotons, taking into account their subsequent interactions (and energy loss) and the presence of nuclei in the interstellar matter. We point out that in some cases the optimal kinetic energy to search for a signal from supersymmetric dark matter is above several GeV, rather than the traditional sub-GeV region. The large astrophysical uncertainties involved do not allow the ...
Subjects
arXiv: Astrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::ExperimentNuclear ExperimentAstrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Astrophysics
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