Jul 12 – 23, 2021
Europe/Berlin timezone

Testing Hadronic Interaction Models with Cosmic Ray Measurements at the IceCube Neutrino Observatory

Jul 14, 2021, 6:00 PM
1h 30m


Poster CRI | Cosmic Ray Indirect Discussion


Stef Verpoest (Ghent University)


The IceCube Neutrino Observatory, with its deep in-ice detector IceCube and surface array IceTop, provides the unique possibility to measure the low-energy (∼1 GeV) and high-energy (>500 GeV) muon component as well as the electromagnetic component of cosmic-ray air showers simultaneously. For events coincident between the two detectors, IceTop provides an estimate of the primary cosmic-ray energy and a sensitivity to the density of low-energy surface muons. In IceCube, the energy loss of the associated high-energy muon bundle is reconstructed. The muon energy spectra predicted by air shower simulations are strongly dependent on which hadronic interaction model is used. Therefore, in this work, we present an analysis of air shower data between 2.5 and 100 PeV, comparing the surface muon density measurement with the energy loss of the high-energy muon bundle and the reconstructed lateral distribution function’s slope under different composition assumptions to test the internal consistency of several hadronic interaction models.


Cosmic Rays; Air showers; Hadronic interaction models; Muons

Subcategory Experimental Results
Collaboration IceCube

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