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Dark Matter via Many Copies of the Standard Model
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Dark Matter via Many Copies of the Standard Model
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We propose a cosmological scenario based on the assumption that the Standard Model possesses a large number of copies. It is demonstrated that baryons in the hidden copies of the standard model can naturally account for the dark matter. The right abundance of the hidden-sector baryons and the correct spectrum of density perturbations are simultaneously generated during modulated reheating. We show that for the natural values of inflaton coupling constants, dictated by unitarity, the dark-matter abundance is predicted to be proportional to the ratio of observed cosmological parameters: the square of the amplitude of cosmological perturbations and the baryon-to-photon number ratio.
Forward citations
Cited by 2 Pith papers
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Searching for the $N$-naturalness tower of neutrinos
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Constructing de Sitter space and Dark Matter with Dynamical Tension Strings
Dynamical string tensions via a tension scalar induce de Sitter space on a brane and allow different-tension strings to serve as dark matter with hidden standard-model copies.
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