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Constraining Decaying Dark Matter with Fermi LAT Gamma-rays
Le Zhang, Christoph Weniger, Luca Maccione +2
High energy electrons and positrons from decaying dark matter can produce a significant flux of gamma rays by inverse Compton off low energy photons in the interstellar radiation f…
Intense Gamma-Ray Lines from Hidden Vector Dark Matter Decay
Chiara Arina, Thomas Hambye, Alejandro Ibarra +1
Scenarios with hidden, spontaneously broken, non-abelian gauge groups contain a natural dark matter candidate, the hidden vector, whose longevity is due to an accidental custodial…
Dark Matter Decay and Cosmic Rays
Christoph Weniger
The decay of dark matter is predicted by many theoretical models and can produce observable contributions to the cosmic-ray fluxes. I shortly discuss the interpretation of the posi…
Detecting Gamma-Ray Anisotropies from Decaying Dark Matter: Prospects for Fermi LAT
Alejandro Ibarra, David Tran, Christoph Weniger
Decaying dark matter particles could be indirectly detected as an excess over a simple power law in the energy spectrum of the diffuse extragalactic gamma-ray background. Furthermo…
Decaying Dark Matter in Light of the PAMELA and Fermi LAT Data
Alejandro Ibarra, David Tran, Christoph Weniger
A series of experiments measuring high-energy cosmic rays have recently reported strong indications for the existence of an excess of high-energy electrons and positrons. If interp…
Cosmic Rays from Leptophilic Dark Matter Decay via Kinetic Mixing
A. Ibarra, A. Ringwald, D. Tran +1
If interpreted in terms of decaying dark matter, the steep rise in the positron fraction of cosmic rays above 10 GeV, as observed by the PAMELA experiment, suggests an underlying p…