Wuppertal 2015 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 96: Neutrinoastronomie III
T 96.5: Vortrag
Donnerstag, 12. März 2015, 17:45–18:00, I.12.02 (HS 31)
IceCube filters towards an unified all-flavor neutrino sample — •Kai Krings1, Juliane van Scherpenberg1, and Marcel Zoll2 for the IceCube collaboration — 1TU München, Physik-Department, Excellence Cluster Universe, Boltzmannstr. 2, 85748 Garching — 2Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden
IceCube measured an astrophysical neutrino flux in the 100 TeV to PeV range at the level of 10−8 GeVcm−2s−1sr−1 per flavor with three years of data collected between 2010 and 2012. The data is consistent with isotropic neutrino arrival directions. In order to enhance the probability to detect the sources of these neutrinos, the data sample can still be optimized by taking all possible detection channels into account and by optimizing various steps of the data processing chain. The goal is to create an unified all-flavor neutrino sample that selects both track- and cascade-like events originating from the whole sky. As a first step, we investigated a possible increase in the efficiency of selecting (neutrino-induced) muon events at the South Pole when introducing a new clustering algorithm earlier into the processing chain. This algorithm was developed to find and split coincident events and to remove hits caused by noise. The results of this study are going to be presented in this talk.