Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 100: Cosmic Rays V

T 100.2: Vortrag

Freitag, 4. April 2025, 09:15–09:30, VG 3.102

Unfolding the Atmospheric Muon Spectrum Using Stopping Muons in IceCube — •Lucas Witthaus for the IceCube collaboration — TU Dortmund University

The IceCube Neutrino Observatory is a neutrino detector embedded within the Antarctic ice sheet near the South Pole. Although its primary goal is the neutrino observation, the majority of detected events are attributed to atmospheric muons generated by cosmic-ray-induced air showers in the upper atmosphere. As muons enter the ice, they lose significant energy through interactions with the surrounding matter, which limits their propagation length depending on their initial energy. This talk presents the unfolding of the muon surface energy spectrum and the stopping muon depth intensity, providing information about the abundance of atmospheric muons in the South Pole ice. The study targets a specific subset of events comprising single muons that stop within the IceCube detector. The event classification as well as the reconstruction of the muon tracks are performed using deep neural networks.