Anti-deuterons from heavy Dark Matter

Details Anti-deuterons from heavy Dark Matter Anti-deuterons from heavy Dark Matter

2009-04-07

arxiv.org/abs/0904.1165v1

Phys.Lett.B678:20-31,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 6 figures

Scientific paper

10.1016/j.physletb.2009.05.059

We study the fluxes of anti-deuterons that could be produced by annihilations in the galactic halo of Dark Matter particles with multi-TeV mass and a large annihilation cross section, as indicated by the recent PAMELA results. The model of Minimal Dark Matter (MDM) is an example in this category. We find that the fluxes are well within the reach of planned experiments for DM candidates that annihilate mainly into quark pairs, and also extend into the multi-GeV range above the background. They are instead suppressed and concentrated at too large energies to emerge above the background if the main annihilation channel is into gauge bosons (such as in particular W+W- in the MDM case).

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