Speaker
Description
We investigate IceCube's ability to constrain the neutrino relic abundance using events from the recently identified neutrino source NGC1068. Since these neutrinos have large energies $\gtrsim$1 TeV and have propagated through large distances, they make a great probe for overabundances of the cosmic neutrino background.
The propagation of neutrinos from NGC1068 was simulated by solving a transport equation, which takes into account the SM neutrino-neutrino interactions. The final fluxes produced are then analysed using publicly released IceCube data. Our preliminary results indicate that IceCube is able to improve the current bounds on a relic neutrino overabundance by 3 orders of magnitude compared to current experimental bounds, i.e. to less than ~ $10^9$cm$^{-3}$ at the $2\sigma$ confidence level.
| Title of the Poster/Talk | Constraints on the Cosmic Neutrino Background from NGC1068 |
|---|---|
| Related Papers/Preprints | arXiv:2404.02202 |
