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Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 107: Cosmic rays 7

T 107.1: Vortrag

Freitag, 8. März 2024, 09:00–09:15, Geb. 20.30: 2.059

Towards the measurement of seasonal variations in the atmospheric muon spectrum — •Samuel Haefs and Karolin Hymon for the IceCube collaboration — Astroparticle Physics WG Rhode, TU Dortmund University, Germany

Atmospheric muons are produced when cosmic rays interact with nuclei in the Earth's atmosphere. These interactions produce secondary particles, mainly pions and kaons. These secondary particles either interact with other nuclei or decay into muons and neutrinos, forming an air shower. The muons can be detected by the IceCube Neutrino Observatory. This observatory is located at the South Pole, 1450m to 2450m deep in the Antarctic ice. High-energy muons passing through the ice produce Cherenkov light, which is then detected by the optical modules of the detector. Seasonal variations in atmospheric muon flux are influenced by changes in atmospheric temperature and pressure. This work addresses these fluctuations using a deconvolution technique called funfolding, which employs Markov Chain Monte Carlo (MCMC) methods for unfolding.

Supported by BMBF (ErUM) and DFG (SFB 1491)

Keywords: atmospheric muons; air shower; seasonal variations; icecube

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