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Heidelberg 2022 – scientific programme

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T: Fachverband Teilchenphysik

T 72: Cosmic Ray 3

T 72.1: Talk

Wednesday, March 23, 2022, 16:15–16:30, T-H31

Using in-ice muons for Cosmic-Ray composition analysis at IceCube Observatory — •Paras Koundal for the IceCube collaboration — Institute for Astroparticle Physics, KIT Karlsruhe, Germany

Understanding the dynamics of astrophysical sources is a pursuit that is very dear to many astrophysicists. Cosmic-Rays (CRs), charged particles from these astrophysical accelerators, provide us with a unique opportunity to discern the fundamental properties and behavior of such sources. IceCube Neutrino Observatory, concealed deep under the South-Pole Antarctic ice, detects the particles from these astrophysical sources. The integrated operation of the in-ice array of IceCube (primarily a neutrino detector), with its surface array, IceTop, affords us unique three-dimensional detection capabilities for CR-induced air showers.

The talk will discuss the work done to use the in-ice shower-footprint primarily caused by high-energetic muons in cosmic-ray air-showers, for improving cosmic-ray composition estimation at IceCube Observatory. The work will introduce new composition-sensitive parameters with minimal dependence on hadronic-interaction models. Hence, the work provides a suitable solution for detailed composition analysis while reducing systematic effects of choosing a hadronic-interaction model for interpretation of observed real data.

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