Warped Kaluza-Klein Dark Matter

Abstract

Warped compactifications of type IIB string theory contain natural dark matter candidates: Kaluza-Klein modes along approximate isometry directions of long warped throats. These isometries are broken by the full compactification, including moduli stabilization; we present a thorough survey of Kaluza-Klein mode decay rates into light supergravity modes and Standard Model particles. We find that these dark matter candidates typically have lifetimes longer than the age of the universe. Interestingly, some choices for embedding the Standard Model in the compactification lead to decay rates large enough to be observed, so this dark matter sector may provide constraints on the parameter space of the compactification.

37pp; v2. references, minor clarification

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• Thermal Aspects of ABJM theory: Currents and Condensations
• M-theory/type IIA duality and K3 in the Gibbons-Hawking approximation
• Warped Radion Dark Matter
• Theoretical constraints on brane inflation and cosmic superstring radiation
• Warping, Extra Dimensions and a Slice of AdS_d
• Tachyons in Throat Cosmology
• Non-thermal warm dark matter limits from small-scale structure
• A class of Calabi-Yau threefolds as manifolds of SU(2) structure