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Current and future neutrino limits on the abundance of primordial black holes
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abstract
Primordial black holes (PBHs) formed in the early Universe are sources of neutrinos emitted via Hawking radiation. Such astrophysical neutrinos could be detected at Earth and constraints on the abundance of comet-mass PBHs could be derived from the null observation of this neutrino flux. Here, we consider non-rotating PBHs and improve constraints using Super-Kamiokande neutrino data, as well as we perform forecasts for next-generation neutrino (Hyper-Kamiokande, JUNO, DUNE) and dark matter (DARWIN, ARGO) detectors, which we compare. For PBHs less massive than $\sim \textrm{few} \times 10^{14}$ g, PBHs would have already evaporated by now, whereas more massive PBHs would still be present and would constitute a fraction of the dark matter of the Universe. We consider monochromatic and extended (log-normal) mass distributions, and a PBH mass range spanning from $10^{12}$ g to $\sim 10^{16}$ g. Finally, we also compare our results with previous ones in the literature.
Forward citations
Cited by 5 Pith papers
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Primordial black holes as cosmic accelerators of light dark matter: Novel direct detection constraints
Primordial black hole evaporation generates light fermionic dark matter capable of producing electron recoils in XENONnT, LZ, and PandaX-4T, enabling new constraints on DM-electron interactions after including Earth a...
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Probing Memory-Burdened Primordial Black Holes with High-Energy Neutrinos
For memory-burdened primordial black holes, a log-normal mass function can produce neutrino abundance limits several orders of magnitude stronger than a monochromatic population with the same median mass, with current...
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Constraining primordial black holes and primordial curvature power spectrum with extragalactic muon neutrino
Neutrino flux from WIMP annihilation in PBH-seeded UCMHs yields f_PBH ≲ 4×10^{-5} (strongest) and P_R ≲ 10^{-1.65} at k∼3×10^{12} Mpc^{-1}.
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Searching for Dark Matter with MeVCube
Using Fisher forecasting, the author shows that a 2U to 12U MeVCube CubeSat could probe new dark matter parameter space for evaporating primordial black holes and MeV-scale decaying or annihilating dark matter.
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Asymmetries from a charged memory-burdened PBH
A parameter-space scan shows that very large curvature-current couplings can fit the baryon asymmetry and dark matter abundance, while the electric charge of the black hole plays no role in the mechanism.
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