22-24 May 2013
Physics Department, University "La Sapienza", Roma, Italy
Europe/Rome timezone

Cosmic-ray Spectrum, Composition, and Anisotropy Measured with IceCube/IceTop

22 May 2013, 11:50
Aula Edoardo Amaldi (first floor) (Physics Department, University "La Sapienza", Roma, Italy)

Aula Edoardo Amaldi (first floor)

Physics Department, University "La Sapienza", Roma, Italy


Dr Alessio Tamburro (University of Delaware)


Analysis of cosmic-ray surface data collected with the IceTop array of Cherenkov detectors at the South Pole gives an accurate measurement of the cosmic-ray spectrum and its features in the "knee" region and at higher energies up to about 1 EeV. IceTop is part of the IceCube Observatory, a cubic kilometer Cherenkov detector deployed under IceTop in the polar ice sheet, which reconstructs tracks of deeply penetrating muons. The surface and in-ice signals detected in coincidence provide clear insights into the nuclear composition of cosmic rays. IceCube/IceTop already measured an average heavier composition after the knee. We present preliminary results on both the IceTop only analysis and the coincident event analysis. Furthermore, we discuss the implications of the recent measurement of the cosmic-ray anisotropy with IceTop.

Primary author

Dr Alessio Tamburro (University of Delaware)

Presentation Materials

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