Erlangen 2026 – scientific programme

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T: Fachverband Teilchenphysik

T 40: Cosmic Rays II

T 40.3: Talk

Tuesday, March 17, 2026, 16:45–17:00, KS 00.006

Measurement of air-showers by the radio antennas of the IceCube Surface Array Enhancement — •Megha Venugopal for the IceCube collaboration — Institute of Astroparticle Physics (IAP), Karlsruhe Institute of Technology, Germany

In a cubic km of ice at the South Pole, strings of Digital Optical Modules of the IceCube observatory measure neutrinos from astrophysical phenomena. IceTop, located on the surface of this detector, comprising 81 pairs of ice Cherenkov detectors measure the electromagnetic and muonic parts of air showers induced by cosmic rays. Challenges arising from the accumulation of snow over these detectors over time led to a planned enhancement of these detectors. Since early 2025, the Surface Array Enhancement has three stations each equipped with 3 antennas and 8 scintillators deployed on the IceTop footprint. The data from the new stations were checked and the first radio data triggered by scintillators measured in all three stations have been reconstructed and verified. Estimation of Xmax with the previous dataset with a single station is also discussed.

Keywords: radio detection; IceCube; air showers