Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 11: Neutrino-Astronomie I

T 11.7: Talk

Monday, March 25, 2019, 17:30–17:45, S10

Improving the IceCube-DeepCore event classification — •Leander Fischer for the IceCube collaboration — DESY, Zeuthen, Germany

The IceCube Neutrino Observatory is a cubic kilometer in-ice Cherenkov detector located at the Geographic South Pole. DeepCore is a denser sub-array of IceCube that reaches an energy detection threshold of less than 10 GeV and provides data for some of the most precise neutrino oscillation measurements using atmospheric neutrinos. In current studies, muon neutrinos are identified by separating the measured data into two channels: track- and cascade-like events. A possible way to improve the current sensitivity is to split the data into further classes that might result in better reconstruction performance and better control over the systematic uncertainties. An approach for splitting the data using decision tree-based multivariate machine learning algorithms will be presented in this talk.