Dark Matter Signals from Cascade Annihilations

  title={Dark Matter Signals from Cascade Annihilations},
  author={Jeremy Mardon and Yasunori Nomura and Daniel Stolarski and Jesse D. Thaler},
A leading interpretation of the electron/positron excesses seen by PAMELA and ATIC is dark matter annihilation in the galactic halo. Depending on the annihilation channel, the electron/positron signal could be accompanied by a galactic gamma ray or neutrino flux, and the non-detection of such fluxes constrains the couplings and halo properties of dark matter. In this paper, we study the interplay of electron data with gamma ray and neutrino constraints in the context of cascade annihilation… CONTINUE READING