The Bulletin of The Korean Astronomical Society (천문학회보)

The Korean Astronomical Society (한국천문학회)
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A comparison study of CORSIKA and COSMOS simulations for extensive air showers

  • Kim, Ji-Hee (Department of Astronomy and Space Science, Chungnam National University) ;
  • Roh, Soon-Young (Department of Astronomy and Space Science, Chungnam National University) ;
  • Ryu, Dong-Su (Department of Astronomy and Space Science, Chungnam National University) ;
  • Kang, Hye-Sung (Department of Earth Sciences, Pusan National University)
  • Published : 2012.04.03
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Abstract

Monte Carlo codes for extensive air shower (EAS) simulate the development of EASs initiated in the Earth's atmosphere by ultra-high energy cosmic rays (UHECRs) with energy exceeding - $10^{18}$ eV. Here, we compare EAS simulations with two different codes, CORSIKA and COSMOS, presenting quantities including the longitudinal distribution of particles, depth of shower maximum, kinetic energy distribution of particle at the ground, and calorimetric energy. In addition, the lateral distribution of local energy density far from the EAS core has been known as an important quantity to estimate the energy of UHECRs. We also present the lateral distribution function obtained from GEANT4 simulations for detector response.

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