Warped Kaluza-Klein Dark Matter

Details Warped Kaluza-Klein Dark Matter Warped Kaluza-Klein Dark Matter

2009-08-10

arxiv.org/abs/0908.1387v2

Physics

High Energy Physics

High Energy Physics - Theory

37pp; v2. references, minor clarification

Scientific paper

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.

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