Dortmund 2021 – scientific programme
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T: Fachverband Teilchenphysik
T 42: Neutrino astronomy II
T 42.10: Talk
Tuesday, March 16, 2021, 18:15–18:30, Tq
Stacking Point Source Search for a Neutrino Contribution at HESE and EHE Positions with IceCube Data — •Johannes Kollek1, Jan Soedingrekso1, and Alexander Sandrock1,2 for the IceCube collaboration — 1TU Dortmund, Dortmund, Germany — 2Now at National Research Nuclear University MEPhI, 115409 Moscow, Russia
Neutrino point source searches could help understanding cosmic ray acceleration. With past all-sky searches in IceCube not revealing any point sources so far, a higher sensitivity can be achieved with time-dependent stacking searches on predefined source positions. A previous analysis on high energy starting event (HESE) positions with different non-overlapping time windows issued no significant lower-energy excess. The analysis is repeated also using the positions of extremely high energy events (EHE) and extended to additionally test overlapping time windows. This talk covers the early stage of the analysis and gives an overview over the analysis methods and goals.