Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 39: Methods of astroparticle physics III

T 39.2: Talk

Tuesday, March 31, 2020, 17:15–17:30, L-3.002

Classification of Cosmic Rays on the basis of raw data of the IceCube Array — •Johannes Bartl, Gerrit Wrede, Thorsten Glüsenkamp, and Gisela Anton — Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland

In this paper, a classification of the primary particles of cosmic rays is performed using the measured signal within the IceCube array. This classification is the first separation only based on the detected photons generated by the interaction of the air shower in the ice. The distribution of the photons and thus the measurement signal of the detector depends on the mass and energy of the triggering primary particle. Using simulation data, a neural network was trained to distinguish between hydrogen and iron showers. Subsequently, the predictions of the network were weighted according to reality using a model. It was possible to classify 80% of the air showers correctly and the neural network was able to extract the primary energy and the energy distribution as classification criteria.