Decaying Dark Matter from Dark Instantons

Abstract

We construct an explicit, TeV-scale model of decaying dark matter in which the approximate stability of the dark matter candidate is a consequence of a global symmetry that is broken only by instanton-induced operators generated by a non-Abelian dark gauge group. The dominant dark matter decay channels are to standard model leptons. Annihilation of the dark matter to standard model states occurs primarily through the Higgs portal. We show that the mass and lifetime of the dark matter candidate in this model can be chosen to be consistent with the values favored by fits to data from the PAMELA and Fermi LAT experiments.

19 pages LaTeX, 3 eps figures. v2,v3: references added

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Cited by in corpus (14)

• Indirect Searches for Decaying Dark Matter
• Constraints on Decaying Dark Matter from Fermi Observations of Nearby Galaxies and Clusters
• Light Dark Matter from the U(1)_X Sector in the NMSSM with Gauge Mediation
• T(13) Flavor Symmetry and Decaying Dark Matter
• Universally Leptophilic Dark Matter From Non-Abelian Discrete Symmetry
• Gamma-Ray Lines from Radiative Dark Matter Decay
• Gamma-rays from Nearby Clusters: Constraints on Selected Decaying Dark Matter Models
• Decaying Dark Matter in Supersymmetric Model and Cosmic-Ray Observations
• Planck-scale effects on WIMP dark matter
• Extracting the size of the cosmic electron-positron anomaly
• A Froggatt-Nielsen Model for Leptophilic Scalar Dark Matter Decay
• Dark sector portal with vector-like leptons and flavor sequestering
• Pseudo-Familon Dark Matter
• Triplet Dark Matter from leptogenesis