Extension of Cherenkov Light LDF Parametrization for Tunka and Yakutsk EAS Arrays

Journal of astrophysics and astronomy

A. A. Al-Rubaiee1¹ 

[1] Department of Physics, College of Science, The University of Mustansiriyah, 10052 Baghdad, Iraq.$$

关键词: Cherenkov light;    lateral distribution function;    extensive air showers.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

The Cherenkov light Lateral Distribution Function (LDF) from particles initiated Extensive Air Showers (EAS) with ultrahigh energies (𝐸 > 1016 eV) was simulated using CORSIKA program for configuration of Tunka and Yakutsk EAS arrays for different primary particles (p, Fe and O2) and different zenith angles. By depending on the Breit–Wigner function, a parametrization of the Cherenkov light LDF was reconstructed on the basis of this simulation as a function of the primary energy. The comparison of the approximated Cherenkov light LDF with that measured on Tunka and Yakutsk EAS arrays gives the possibility of identification of energy spectrum and mass composition of particles initiating EAS about the knee region of the cosmic ray spectrum. The extrapolation of approximated Cherenkov light LDF for energies 20, 30 and 50 PeV was obtained for different primary particles and different zenith angles.

【 授权许可】

Unknown