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T: Fachverband Teilchenphysik

T 88: Eingeladene Vorträge IV

T 88.1: Semi-Invited Talk

Thursday, March 3, 2016, 13:45–14:15, VMP8 HS

Mass composition of ultra-high energy cosmic rays: new results from the Pierre Auger Observatory and their astrophysical implications — •Alexey Yushkov for the Pierre-Auger collaboration — University of Siegen, Siegen, Germany

The recent experimental data on the composition of cosmic rays from the `knee' to the GZK cut-off region are reviewed. Special emphasis is given to the results of the Pierre Auger Observatory in the region around the `ankle'. These results have important implications for the astrophysical scenarios concerning the transition between galactic and extragalactic cosmic rays. The perspectives of the experimental studies of the mass composition for GZK and super-GZK energies with the AugerPrime upgrade of the Pierre Auger Observatory are discussed.