Charge Asymmetric Cosmic Rays as a probe of Flavor Violating Asymmetric Dark Matter

Details Charge Asymmetric Cosmic Rays as a probe of Flavor Violating Asymmetric Dark Matter Charge Asymmetric Cosmic Rays as a probe of Flavor Violating Asymmetric Dark Matter

2011-06-16

arxiv.org/abs/1106.3353v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 8 figures. Revised version to match the published version

Scientific paper

The recently introduced cosmic sum rules combine the data from PAMELA and Fermi-LAT cosmic ray experiments in a way that permits to neatly investigate whether the experimentally observed lepton excesses violate charge symmetry. One can in a simple way determine universal properties of the unknown component of the cosmic rays. Here we attribute a potential charge asymmetry to the dark sector. In particular we provide models of asymmetric dark matter able to produce charge asymmetric cosmic rays. We consider spin zero, spin one and spin one-half decaying dark matter candidates. We show that lepton flavor violation and asymmetric dark matter are both required to have a charge asymmetry in the cosmic ray lepton excesses. Therefore, an experimental evidence of charge asymmetry in the cosmic ray lepton excesses implies that dark matter is asymmetric.

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