Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 33: Cosmic Rays VI

T 33.5: Talk

Tuesday, March 16, 2021, 17:00–17:15, Th

Muon studies with the IceTop surface array — •Donghwa Kang for the IceCube collaboration — Institut für Astroteilchenphysik, Karlsruher Institut für Technologie

IceTop is the surface component of the IceCube Neutrino Observatory at the geographical South Pole. It is designed to measure the air showers of cosmic rays in the energy range from PeV up to EeV. In general, it is reasonable to assume that the muon signal becomes significant for a large distance from the shower axis, since they are overwhelmed by the signal from electromagnetic components close to the shower axis. Considering the charge signal distribution, the a muon parameter was defined and reconstructed, which is the sum of the charge signals divided by the total number of tanks and the area of the tanks at a fixed distance from the shower axis. In this talk the estimated muon parameter based on the charge distribution will be presented and its use for energy determination and composition reconstruction of primary cosmic rays discussed.