The use of the Cherenkov radiation and the fluorescence light to calibrate the energy of giant air showers

• Main Authors: Dedenko, L G, Podgrudkov, D A, Roganova, T M, Fedorova, G F, Fedunin, E Y, Shozieev, G P
• Language: English
• Published: 2007
• Subjects: Astrophysics and Astronomy; Yakutsk
• Online Access: http://cds.cern.ch/record/1021629

In terms of the quark-gluon string model the analysis of the classic procedure to estimate the energy of giant air showers with help of the parameter s(600) (a density of energy deposition in the scintillator at a distance of 600 m from the shower core) have been carried out. Simulations of the signal s(600) with help of the CORSIKA code in terms of the hybrid scheme show energy estimates which are approximately a factor of 1.6 times lower than adopted at the Yakutsk array. The energy estimates calculated with the help of the Cherenkov radiation coincide with the experimental data. Simulations of deposited energy distributions in the atmosphere with help of the GEANT4 code and the CORSIKA code show that more than 20% of this energy may be deposited at distances above 100 m from the shower axis.