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T: Fachverband Teilchenphysik

T 32: Neutrino Astronomy II

T 32.4: Talk

Tuesday, April 1, 2025, 17:00–17:15, VG 1.105

Prospects for a combined measurement of the galactic neutrino flux with KM3NeT and IceCube — •Anke Mosbrugger and Oliver Janik — Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander-Universität Erlangen-Nürnberg

Observing the Galactic Plane with muon neutrinos relies on precise muon track reconstruction for accurate pointing and high detection efficiency. To suppress the dominant background from atmospheric muons, the Earth itself is used as a natural filter. This effectively yields a pure neutrino data set on the Hemisphere below the local horizon. Hence, combining data from a neutrino telescope in the Southern Hemisphere (IceCube) and the Northern Hemisphere (KM3NeT) increases the sensitivity to the astrophysical neutrino flux, especially for observations of the Galactic plane. The diffuse astrophysical neutrino flux is analyzed using a binned forward-folding likelihood approach. All statistical modeling in this work is handled by the framework NNMFit. This talk will outline the implementation of KM3NeT data in this framework and the prospects of combining data of the KM3NeT and IceCube neutrino telescopes for a measurement of the galactic neutrino flux.

Keywords: NNMFit; IceCube; KM3NeT; Galactic Plane; Neutrino Astronomy