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Primordial Black Hole Dark Matter evaporating on the Neutrino Floor

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arxiv 2106.02492 v1 pith:2DWVZRTN submitted 2021-06-04 hep-ph astro-ph.COhep-ex

Roberta Calabrese , Damiano F.G. Fiorillo , Gennaro Miele , Stefano Morisi , Antonio Palazzo This is my paper · ORCID
classification hep-phastro-ph.COhep-ex
keywords pbhsneutrinoblackdarkdetectionfloorfractionmatter
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abstract

Primordial black holes (PBHs) hypothetically generated in the first instants of life of the Universe are potential dark matter (DM) candidates. Focusing on PBHs masses in the range $[5 \times10^{14} - 5 \times 10^{15}]$g, we point out that the neutrinos emitted by PBHs evaporation can interact through the coherent elastic neutrino nucleus scattering (CE$\nu$NS) producing an observable signal in multi-ton DM direct detection experiments. We show that with the high exposures envisaged for the next-generation facilities, it will be possible to set bounds on the fraction of DM composed by PBHs improving the existing neutrino limits obtained with Super-Kamiokande. We also quantify to what extent a signal originating from a small fraction of DM in the form of PBHs would modify the so-called "neutrino floor", the well-known barrier towards detection of weakly interacting massive particles (WIMPs) as the dominant DM component.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Primordial black holes as cosmic accelerators of light dark matter: Novel direct detection constraints

    hep-ph 2026-02 unverdicted novelty 7.0 of 10

    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...

  2. Machine Learning-Based Analytical Expressions for Gray-Body Factors and Application to Primordial Black Holes

    astro-ph.CO 2025-04 conditional novelty 6.0 of 10

    Symbolic regression is used to derive compact error-function approximations for Schwarzschild gray-body factors, and the approximations reproduce the Hawking spectra and primordial black hole constraints from full num...

  3. Probing light axion-like particle via primordial black hole evaporation with gamma-ray observations

    hep-ph 2025-04 conditional novelty 5.0 of 10

    PBH-emitted ALPs converting in cosmic magnetic fields, and PBH electrons scattering off ALP dark-matter halos, could create gamma-ray signals detectable by AMEGO, e-ASTROGAM, and MAST, with projected coupling reach ne...

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