Primary Energy Measurement with EAS Cherenkov Light: Experiment QUEST   and CORSIKA Simulation
  A new primary mass independent method of energy measurement has been developed by exploiting: a) the joint analysis of the shower size, obtained by EAS-TOP, and of the EAS atmospheric Cherenkov light lateral distribution, obtained by the QUEST array, and b) simulations based on the CORSIKA/QGSJET code. The method is based on the correlation between the size/energy ratio and the steepness of Cherenkov light lateral distribution and has been compared with a "classical" one based on the Cherenkov light flux at a fixed distance (175 m) from the EAS core. An absolute energy calibration of the EAS atmospheric Cherenkov light flux has been obtained. 
E.Korosteleva, L.Kuzmichev, V.Prosin (Scobeltsyn Institute of Nuclear   Physics, MSU, Moscow, Russia), B.Lubsandorzhiev (Ins...