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Diffuse Boosted Cosmic Neutrino Background

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arxiv 2405.14946 v2 pith:DRWWX74M submitted 2024-05-23 hep-ph astro-ph.CO

classification hep-phastro-ph.CO
keywords neutrinocosmicfluxboosteddiffusebackgroundneutrinosrelic
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abstract

Energetic cosmic rays scatter off the cosmic neutrino background throughout the history of the Universe, yielding a diffuse flux of cosmic relic neutrinos boosted to high energies. We calculate this flux under different assumptions of the cosmic-ray flux spectral slope and redshift evolution. The non-observation of the diffuse flux of boosted relic neutrinos with current high-energy neutrino experiments already excludes an average cosmic neutrino background overdensity larger than $\sim 10^{4}$ over cosmological distances. We discuss the future detectability of the diffuse flux of boosted relic neutrinos in light of neutrino overdensity estimates and cosmogenic neutrino backgrounds.

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Cited by 1 Pith paper

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

  1. Probing Long-Range Forces Between Neutrinos with Cosmic Structures

    hep-ph 2024-12 conditional novelty 5.0 of 10

    Neutrino long-range forces stronger than gravity would make the cosmic neutrino background collapse into bound states, and existing matter power spectrum and reionization data now exclude a band of couplings for force...

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