Speaker
Dr
Geoff Beck
(University of Witwatersrand)
Description
The Dark Matter Particle Explorer (DAMPE) satellite mission recently announced an excess is the observed electron/positron spectrum occurring around the TeV scale. This has been conjectured to be explicable in terms of the annihilation of a heavy leptophilic WIMP particle. Additionally, this hypothesis requires the presence of a dense clump of dark matter within 1 kpc of the Earth, in order for the required WIMP annihilation cross-section to fall into territory that is largely unconstrained by experiments like Fermi-LAT. We will explore the astrophysical consequences of this model, the impact of current data on its parameter space, the observability of the conjectured dark matter clump, and the projections for up-coming experiments like KM3NET. We confirm the inability of Fermi-LAT to probe the required parameter space and show that the LOFAR array is well positioned to hunt for the nearby dark matter clump in radio frequencies and that KM3NET can deeply probe the muon coupling of such a dark matter model.
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Primary authors
Dr
Geoff Beck
(University of Witwatersrand)
Prof.
Sergio Colafrancesco
(University of the Witwatersrand)
