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Dark matter interpretation of recent electron and positron data
Stockholm University, Faculty of Science, Department of Physics. (The Oskar Klein Centre for Cosmoparticle Physics)
2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 103, 031103- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2009. Vol. 103, 031103- p.
URN: urn:nbn:se:su:diva-32500DOI: 10.1103/PhysRevLett.103.031103ISI: 000268088300011OAI: diva2:280751
Available from: 2010-01-25 Created: 2009-12-11 Last updated: 2010-01-25Bibliographically approved

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