Bump-hunting in the diffuse flux of high-energy cosmic neutrinos - INSPIRE

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Bump-hunting in the diffuse flux of high-energy cosmic neutrinos

Damiano F.G. Fiorillo
(
- Bohr Inst.
)
,
Mauricio Bustamante
(
- Bohr Inst.
)

Jul 25, 2023

8 pages

Published in:

PoS ICRC2023 (2023) 999

Contribution to:

- ICRC2023
, 999

Published: Jul 25, 2023

DOI:

10.22323/1.444.0999

reference search1 citation

Citations per year

Abstract: (SISSA)

The origin of the TeV–PeV astrophysical neutrinos seen by the IceCube telescope is unknown. If they are made in proton-photon interactions in astrophysical sources, their spectrum may show bump-like features. We search for such features in the 7.5-years High-Energy Starting Events (HESE), and forecast the power of such searches using larger data samples expected from upcoming telescopes. Present-day data reveals no evidence of bump-like features, which allows us to constrain candidate populations of photohadronic neutrino sources. Near-future forecasts show promising potential for stringent constraints or decisive discovery of bump-like features. Our results provide new insight into the origins of high-energy astrophysical neutrinos, complementing those from point-source searches.

neutrino: particle source
flux
IceCube
neutrino: VHE
neutrino: UHE
photon
hadron
neutrino: energy spectrum

References(8)

Figures(0)

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)
,
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(
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)

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