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Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 59: Neutrino astronomy II

T 59.3: Vortrag

Mittwoch, 1. April 2020, 17:00–17:15, L-2.004

Stacking Point Source Search for a Neutrino Contribution at 27 Track-Like EHE Positions using Six Years of 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 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 events (HESE) positions with 21 different non-overlapping time windows issued no significant lower-energy excess. The analysis is repeated using the positions of extremely high energy events (EHE) and extended to test also overlapping time windows. In this talk, the methods of the analysis and the progress on the sensitivity for the EHE case is presented.

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