Decaying Hidden Dark Matter in Warped Compactification

Abstract

The recent PAMELA and ATIC/Fermi/HESS experiments have observed an excess of electrons and positrons, but not anti-protons, in the high energy cosmic rays. To explain this result, we construct a decaying hidden dark matter model in string theory compactification that incorporates the following two ingredients, the hidden dark matter scenario in warped compactification and the phenomenological proposal of hidden light particles that decay to the Standard Model. In this model, on higher dimensional warped branes, various warped Kaluza-Klein particles and the zero-mode of gauge field play roles of the hidden dark matter or mediators to the Standard Model.

15 pages; v4, several clarifications added, update on Fermi/HESS results

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• Dark Matter Self-interactions and Small Scale Structure
• Hidden Higgs Decaying to Lepton Jets
• $e^{\pm }$ Excesses in the Cosmic Ray Spectrum and Possible Interpretations
• Multiple dark matter scenarios from ubiquitous stringy throats
• T(13) Flavor Symmetry and Decaying Dark Matter
• Universally Leptophilic Dark Matter From Non-Abelian Discrete Symmetry
• Decaying into the Hidden Sector
• Constraining Decaying Dark Matter with Fermi LAT Gamma-rays
• Warped Kaluza-Klein Dark Matter
• Decaying Dark Matter from Dark Instantons
• A Froggatt-Nielsen Model for Leptophilic Scalar Dark Matter Decay
• Search for anomalous production of multiple leptons in association with W and Z bosons at CDF
• Dark matter from dynamical SUSY breaking
• Review of Physics Results from the Tevatron: Higgs Boson Physics
• Tachyons in Throat Cosmology
• Cosmology of Single Species Hidden Dark Matter