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arXiv · hep-ph/9803333

Natural Candidates for Superheavy Dark Matter in String and M Theory

Karim Benakli·John Ellis·Dimitri V. Nanopoulos
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Abstract

We reconsider superheavy dark matter candidates in string and M theory, in view of the possibility that inflation might generate superheavy particles with an abundance close to that required for a near-critical Universe. We argue that cryptons - stable or metastable bound states of matter in the hidden sector - are favoured over other possible candidates in string or $M$ theory, such as the Kaluza-Klein states associated with extra dimensions. We exhibit a specific string model that predicts cryptons as hidden-sector bound states weighing $\sim 10^{12}$ GeV, and discuss their astrophysical observability.

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Karim Benakli, John Ellis, Dimitri V. Nanopoulos. 1998-03-12. Natural Candidates for Superheavy Dark Matter in String and M Theory. https://doi.org/10.1103/physrevd.59.047301

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