http://arxiv.org/abs/1504.03336
Recent results from the AMS-02 data have confirmed that the cosmic ray positron fraction increases with energy between 10 and 200GeV. This quantity should not exceed 50%, and it is hence expected that it will either converge towards 50% or fall. We study the possibility that future data may show the positron fraction dropping down abruptly to the level expected with only secondary production, and forecast the implications of such a feature in term of possible injection mechanisms that include both Dark Matter and pulsars.
T. Delahaye, K. Kotera and J. Silk
Wed, 15 Apr 15
67/68
Comments: Proceedings to the SUGAR 2015 conference
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