Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 9: Cosmic rays 2

T 9.2: Talk

Monday, March 4, 2024, 16:15–16:30, Geb. 30.22: Lehmann-HS

Geometry Alignment of IceAct and the IceCube Neutrino Observatory using Coincident Measurements of Cosmic-Rays — •Jonas Häußler, Lukas Brusa, Lars Heuermann, Merlin Schaufel, Lea Schlickmann, and Christopher Wiebusch for the IceCube collaboration — RWTH Aachen University, Aachen, Deutschland

IceAct is an array of Imaging Air Cherenkov Telescopes located at the South Pole as part of the IceCube Neutrino Observatory. The main goal of IceAct is the hybrid detection of air-showers for cross-calibrating the IceCube in-ice and IceTop surface detectors, enhancing cosmic-ray flux and composition measurements, and vetoing air-shower induced neutrinos. To properly combine the information from IceCube and IceTop with IceAct, the geometric alignment of the telescopes to the detector coordinates has to be known. We have developed a likelihood-based method to determine the alignment using coincident air-shower events. Applying this algorithm to the two already deployed telescopes at the South Pole, we achieve a resolution of a few percent of the pixel resolution.

Keywords: IceCube; IceAct; Geometric Alignment; Cosmic Rays; Hybrid Detection