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T: Fachverband Teilchenphysik

T 18: Neutrino Astronomy 1

T 18.6: Talk

Monday, March 21, 2022, 17:30–17:45, T-H31

Constraining populations of astrophysical neutrino sources with IceCube — •Chiara Bellenghi and Kristian Tchiorniy for the IceCube collaboration — Technische Universität München, Physik-Department, James-Franck-Str. 1, 85748 Garching

The discovery of a diffuse flux of high-energy astrophysical neutrinos in 2013 by the IceCube neutrino observatory has triggered a vast effort to identify the mostly unknown sources of this signal. We present an analysis optimized for identifying an excess of astrophysical neutrino clusterings produced by a population of sub-threshold point sources. We aim at testing the hypothesis of time-integrated emission in the Northern Hemisphere using 9 years of IceCube data. We present here the methods and the potential of the analysis on constraining the neutrino flux contribution from populations of neutrino point sources.