Donghwa Kang
Karlsruhe Institute of Technology, Germany
Cosmic ray physics with IceTop at the IceCube Neutrino Observatory
The IceCube Neutrino Observatory is a cubic-kilometer Cherenkov detector that is deployed deep in the Antarctic ice at the South Pole. A square kilometer companion surface detector, IceTop, located directly above in the in-ice array, measures extensive cosmic ray air showers with primary energies between 100 TeV and 1 EeV. By combining the events measured by IceTop and the in-ice detectors of IceCube in coincidence, we can reconstruct the energy spectra for different primary mass groups. Therefore, we expect to provide essential information about the origin of cosmic rays, in particular, in the transition region from galactic to extra-galactic origin of the cosmic rays. This talk gives an overview of recent experimental results. In addition, prospects by the foreseen enhancement of the surface detectors of IceTop and the future IceCube-Gen2 surface array are briefly discussed.