Erlangen 2026 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 59: Neutrino Astronomy III

T 59.1: Vortrag

Mittwoch, 18. März 2026, 16:15–16:30, KS H C

Extending the Advanced Northern Tracks Selection with Energy Uncertainty Estimation — •Lasse Düser, Shuyang Deng, Sönke Schwirn, Philipp Soldin, Christopher Wiebusch, and Marco Zimmermann for the IceCube collaboration — RWTH Aachen University

The IceCube Neutrino Observatory is a cubic kilometer-sized detector located at the South Pole. It uses more than 5000 photomultipliers (PMTs) to detect particles via their Cherenkov radiation including muons induced by atmospheric and astrophysical neutrinos. Using a graph convolutional neural network that encodes the spatial geometry of the PMTs, the Advanced Northern Tracks Selection (ANTS) identifies these events and reconstructs important event features like the neutrino energy. Extending the existing ANTS framework allows for the simultaneous, event-based estimation of the uncertainty on the reconstructed energy. In this talk, we discuss the network's performance in terms of resolution and calibration. The reconstruction is compared to established methods and evaluated across different event topologies.

Keywords: IceCube; Advanced Northern Tracks Selection; Graph Convolutional Neural Network; Uncertainty Estimation