Monday, June 3, 2013

1303.7294 (Lauren Pearce et al.)

Indirect Detection of Self-Interacting Asymmetric Dark Matter    [PDF]

Lauren Pearce, Alexander Kusenko
Self-interacting dark matter resolves the issue of cuspy profiles that appear in non-interacting cold dark matter simluations; it may additionally resolve the so-called "too big to fail" problem in structure formation. Asymmetric dark matter provides a natural explanation of the comparable densities of baryonic matter and dark matter. In this paper, we discuss unique indirect detection signals produced by a minimal model of self-interacting asymmetric scalar dark matter. Through the formation of dark matter bound states, a dark force mediator particle may be emitted; the decay of this particle may produce an observable signal. We estimate the produced signal and explicitly demonstrate parameters for which the signal exceeds current observations.
View original: http://arxiv.org/abs/1303.7294

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