from September 29, 2015 to October 2, 2015
DESY Hamburg
Europe/Berlin timezone
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Contribution

DESY Hamburg - Main Auditorium

Alternative Propagation Models for Cosmic Positrons

Speakers

  • Ms. Annika REINERT

Primary authors

Abstract content

One aim of cosmic ray measurements is to search for possible signatures of annihilating or decaying dark matter. The excess of positrons measured at the top of the atmosphere has attracted a lot of attention in this context. On the other hand it has been proposed that the data might challenge the established diffusion model for cosmic ray propagation. We investigate variations in the diffusion model giving rise to changes in the spectral shape of the positron spectrum.