Cherenkov light Extrapolation at Ultra High Energy Cosmic Rays in Extensive Air Showers

TL;DR

This paper simulates Cherenkov light distribution in extensive air showers caused by ultra high energy cosmic rays, developing a parameterization to reconstruct particle type and energy from Cherenkov signals.

Contribution

It introduces a new parameterization of Cherenkov light LDF for energies 10^16 to 2×10^18 eV, enabling event reconstruction from Cherenkov measurements.

Findings

Successful reconstruction of particle type and energy from Cherenkov light signals.

Parameterization accurately extrapolates Cherenkov LDF at ultra high energies.

Enhanced understanding of Cherenkov light distribution in EAS.

Abstract

The Simulation of Cherenkov light lateral distribution function (LDF) from particles of Extensive Air Showers (EAS) with ultra high energy cosmic rays (E>=10^16 eV) was simulated for primary protons by the computer code CORSIKA. The parameterization, that constructed on the basis of this simulation have allowed us to reconstruct the events, that is, to reconstruct the type and energy of the particle that generated EAS from signal amplitudes of Cherenkov light registered with the Tunka-25 facility. The extrapolation of the Cherenkov light LDF approximation at the energy range (10^16-2.10^18 eV) was taken into account.