Dark matter interpretation of recent electron and positron data

Details Dark matter interpretation of recent electron and positron data Dark matter interpretation of recent electron and positron data

2009-05-04

arxiv.org/abs/0905.0333v1

Phys.Rev.Lett.103:031103,2009

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

5 pages, 2 figures, pdflatex

Scientific paper

10.1103/PhysRevLett.103.031103

We analyze the recently released Fermi-LAT data on the sum of electrons and positrons. Compared to a conventional, pre-Fermi, background model, a surprising excess in the several hundred GeV range is found and here we analyze it in terms of dark matter models. We also compare with newly published results from PAMELA and HESS, and find models giving very good fits to these data sets as well. If this dark matter interpretation is correct, we also predict the possibility of a sharp break in the diffuse gamma ray spectrum coming from final state radiation.

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