Speaker
Prof.
Vasily Prosin
(Skobeltsyn Institute of Nuclear Physics of Lomonosov Moscow State University)
Description
The experimental data of Tunka-133 obtained during 5 years of observation and preliminary data from the Tunka-HiSCORE prototype array with its first 9 stations allowed a study of primary cosmic rays in the wide energy range 3x10^14 – 10^18 eV.
Reconstruction of the depth-of-shower maximum Xmax by an analysis of the Cherenkov light lateral distribution and the pulse width provides a reliable estimation of the energy dependence of the mean logarithmic mass in the energy range 10^16 – 10^18 eV.
Further mass composition analyses at the knee energy range will be based on the data of the new version of the Tunka-HiSCORE prototype, consisting of 28 stations. The mass composition analysis at the highest energies (10^17 – 10^18 eV) will be based on the comparison of the primary energy measured by the radio method with the flux of charged particles on ground. The high duty cycle of the common operation of the new scintillation array (Tunka-Grande) and the radio extension of the experiment (Tunka-Rex) will provide a high statistics of events.
Primary author
Prof.
Vasily Prosin
(Skobeltsyn Institute of Nuclear Physics of Lomonosov Moscow State University)
