Positron Propagation and Fluxes from Neutralino Annihilation in the Halo

Abstract

Supersymmetric neutralinos are one of the most promising candidates for the dark matter in the Universe. If they exist, they should make up some fraction of the Milky Way halo. We investigate the fluxes of positrons expected at the Earth from neutralino annihilation in the halo. Positron propagation is treated in a diffusion model including energy loss. The positron source function includes contributions from both continuum and monochromatic positrons. We find that, for a "canonical" halo model and propagation parameters, the fluxes are generally too low to be visible. Given the large uncertainties in both propagation and halo structure, it is however possible to obtain observable fluxes. We also investigate the shapes of the positron spectra, including fits to a feature indicated by the results of the HEAT experiment.

16 pages, 19 figures, uses revtex

References in corpus (5)

• Production and propagation of cosmic-ray positrons and electrons
• EGRET Observations of the Extragalactic Gamma Ray Emission
• Indirect Detection of Dark Matter in km-size Neutrino Telescopes
• Which fraction of the measured cosmic-ray antiprotons might be due to neutralino annihilation in the galactic halo?
• The Energy Spectra and Relative Abundances of Electrons and Positrons in the Galactic Cosmic Radiation

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