Probing Neutrino Decay Using the First Steady-State Source of High-Energy Astrophysical Neutrinos, NGC 1068 - INSPIRE

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Probing Neutrino Decay Using the First Steady-State Source of High-Energy Astrophysical Neutrinos, NGC 1068

Victor B. Valera
(
- Bohr Inst.
)
,
Damiano Fiorillo
(
- Bohr Inst.
)
,
Ivan Esteban
(
- Ohio State U., CCAPP
)
,
Mauricio Bustamante
(
- Bohr Inst.
)

Jul 25, 2023

8 pages

Published in:

PoS ICRC2023 (2023) 1066

Contribution to:

- ICRC2023
, 1066

Published: Jul 25, 2023

DOI:

10.22323/1.444.1066

reference search4 citations

Citations per year

Abstract: (SISSA)

We use the recent discovery of the first steady-state source of high-energy astrophysical neutrinos by IceCube, NGC 1068, to probe the lifetime of neutrinos. We look in the neutrino energy spectrum for characteristic features expected from the decay of neutrinos on their way to Earth. We find that present event rates, together with uncertainties in the predicted neutrino flux from NGC 1068, hinder our capacity to discern novel physics signatures in the data and place significant bounds on the neutrino lifetime. However, longer exposures and joint observations from upcoming neutrino telescopes and multi-messenger observations of NGC 1068 will improve the situation and reach significant sensitivities, enhancing our capability to probe neutrino decay, in particular, and novel physics signatures, in general.

neutrino: decay
neutrino: lifetime
neutrino: energy spectrum
neutrino: detector
neutrino: flux
neutrino: VHE
signature
IceCube
sensitivity
galaxy

References(13)

Figures(0)

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