Cherenkov Light Lateral Distribution Function Estimation as a Function of Zenith Angle

TL;DR

This paper models the Cherenkov light lateral distribution function (CLLDF) in extensive air showers as a function of zenith angle using Monte Carlo simulations, providing a parameterization validated across various particles and angles.

Contribution

It introduces a new parameterization of CLLDF based on Breit-Wigner function that accounts for zenith angle dependence, validated against detailed CORSIKA simulations.

Findings

Parameterization accurately reproduces CLLDF for different particles.

Validation shows good agreement with simulation data.

Method applicable across a range of zenith angles and primary particles.

Abstract

The simulation of Cherenkov light lateral distribution function (CLLDF) in Extensive Air Showers (EAS) was performed by using the Monte Carlo CORSIKA code for configurations of Tunka-133 EAS Cherenkov array. This simulation was carried out for different primary particles (e+, e-, p, O, Ar and Fe) around the knee region with the energy 3.10^15 eV at different zenith angles. By depending on the Breit-Wigner function a parameterization of CLLDF was reconstructed on the basis of this simulation as a function of the zenith angle. The parameterized CLLDF was verified for four fixed zenith angles in comparison with the simulation that performed using CORSIKA code for each primary particle.