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T: Fachverband Teilchenphysik

T 120: Cosmic Ray V

T 120.1: Vortrag

Donnerstag, 23. März 2023, 15:50–16:05, POT/0013

Unfolding the Atmospheric Muon Spectrum Using Stopping Muons in IceCube^* — •Lucas Witthaus and Karolin Hymon for the IceCube collaboration — TU Dortmund University

The IceCube Neutrino Observatory is a cubic kilometer neutrino detector located in the ice sheet close to the geographical South Pole. Its primary goal is the observation of neutrinos. However, the majority of detected events is caused by atmospheric muons produced in cosmic ray induced air showers in the upper layers of the atmosphere. Upon entering the antarctic ice, the muons are subject to significant energy losses due to interactions with the surrounding matter, resulting in a limitation of their propagation length. This talk presents the unfolding of the stopping muons depth intensity, providing information about the abundance of atmospheric muons in the South Pole ice. It is conducted on a subset of events, comprising single muons, which stop inside the IceCube detector. Deep neural networks are used to perform the event classification and reconstruction tasks.
^* Supported by the BMBF and the DFG (SFB 1491)