Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 62: Neutrino-Astronomie II

T 62.2: Vortrag

Mittwoch, 27. März 2019, 16:20–16:35, S14

Self-triggered point source search with IceCube — •Martina Karl for the IceCube collaboration — Max-Planck-Institut für Physik, München, Deutschland — Technische Universität München, Deutschland

IceCube is a cubic-kilometer scale neutrino detector instrumenting a gigaton of ice at the geographic South Pole in Antarctica. On average, about 6-8 track-like high energetic neutrino events with energies ranging from 70 TeV to few PeV are detected per year. These muon tracks allow for a pointing to the origin of the muon neutrino in the sky as precise as 0.2°. This work presents a search for cosmic neutrino sources by looking for an excess of neutrino events with energies >= 100 GeV at the source positions of these track-like events. The analysis is applicable to both, a continuous neutrino flux from the source position, meaning a time integrated search over the entire live time of IceCube; as well as to neutrino flares from that source position, comprising an analysis of a time-dependent source. This search will be applied to all presently measured track-like events and additionally will be implemented as an automatic procedure that will be started as soon as a new track-like high energy event is detected.