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

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      http://www.ias.ac.in/article/fulltext/joaa/035/04/0631-0638

    • Keywords

       

      Cherenkov light; lateral distribution function; extensive air showers.

    • Abstract

       

      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.

    • Author Affiliations

       

      A. A. Al-Rubaiee1

      1. Department of Physics, College of Science, The University of Mustansiriyah, 10052 Baghdad, Iraq.
    • Dates

       
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