Decaying dark matter can explain the e? excesses

  title={Decaying dark matter can explain the e? excesses},
  author={E. Nardi and Francesco Sannino and A. Strumia},
  journal={Journal of Cosmology and Astroparticle Physics},
  • E. Nardi, Francesco Sannino, A. Strumia
  • Published 2008
  • Physics
  • Journal of Cosmology and Astroparticle Physics
  • PAMELA and ATIC recently reported excesses in e± cosmic rays. Since the interpretation in terms of DM annihilations was found to be not easily compatible with constraints from photon observations, we consider the DM decay hypothesis and find that it can explain the e± excesses compatibly with all constraints, and can be tested by dedicated HESS observations of the Galactic Ridge. ATIC data indicate a DM mass of about 2 TeV: this mass naturally implies the observed DM abundance relative to… CONTINUE READING
    185 Citations

    Figures from this paper.

    Dark matter with a late decaying dark partner
    • Malcolm Fairbairn, Malcolm Fairbairn, Jure Zupan, Jure Zupan
    • Physics
    • 2009
    • 34
    Inert dark matter in type-II seesaw
    • 8
    • PDF
    Dark matter sees the light
    • 76
    • PDF
    Decaying Dark Atom Constituents and Cosmic Positron Excess
    • 32
    • Highly Influenced
    • PDF
    A hadronic explanation of the lepton anomaly