TY - JOUR ID - TI - Studying the Thinning Effect of Longitudinal development in Extensive Air Showers for Primary Proton and Iron Nuclei at Ultra-High Energies AU - Abbas R. Raham AU - Ahmed A. Al-Rubaiee AU - Majida H. Al-Kubaisy AU - Suror N. Esmaeel PY - 2020 VL - 31 IS - 3 SP - 114 EP - 118 JO - Al-Mustansiriyah Journal of Science مجلة علوم المستنصرية SN - 1814635X 25213520 AB - In the present work, extensive air showers (EAS) effects are described by estimating thelongitudinal development model of EAS at very high energies of various cosmic ray particles.The longitudinal development was simulated for charged particles such as gamma, chargedpions and charged muons at very high energies 1017, 1018 and 1019eV. The simulation wasperformed using an air shower simulator system (AIRES) version 19.04.0. The effect of primaryparticles, energies, thinning energy and zenith angle (θ) on the number of charged particles(longitudinal development) produced in the EAS was taken into account. The rapprochement ofthe estimated longitudinal development of the charged particles such as the charged muons andcharged pions with the experimental measurements (AUGER experiment) that gave a goodagreement for primary proton at the fixed primary energy 1019eV for θ =0˚.

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