The High Resolution Fly s Eye Experiment uses a realistic Monte Carlo program to determine its aperture and resolution We have developed a detailed simulation of the detector response which allows us to generate events that can be compared directly against real data by reconstructing them with the same analysis programs We use a library of proton and iron induced air showers generated with the ...

Cosmic rays have valuable information about universe surroundings us. Finding energy, mass and arrival direction of primary cosmic ray particle are the most important aspects of extensive air shower studies. In order to determine these parameters, arrival direction and core position of extensive air showers should be determined at first. In this article, a new method has been introduced that ut...

Based on CORSIKA and REAS2 simulations, we investigate the dependence of geosynchrotron radio emission from extensive air showers on the energy of the primary cosmic ray and the depth of the shower maximum. It is found that at a characteristic lateral distance, the amplitude of the bandpass-filtered radio signal is directly proportional to the energy deposited in the atmosphere by the electroma...

We present detailed microscopic simulations of high-energy cosmic-ray air showers penetrating high-altitude ice layers that can be found at the polar regions. use a combination CORSIKA Monte Carlo code and Geant4 simulation toolkit, focus on particle cascade develops in to describe its most prominent features. discuss impact layer total number particles function depth shower, we give general pa...

A ~ 62 My periodicity in fossil biodiversity has been observed in independent studies of paleontology databases over ~0.5Gy. The period and phase of this biodiversity cycle coincides with the oscillation of our solar system normal to the galactic disk with an amplitude ~70 parsecs and a period ~64 My. Our Galaxy is falling toward the Virgo cluster, forming a galactic shock at the north end of o...

An efficient scheme for one-dimensional extensive air shower simulation and its implementation in the program CONEX are presented. Explicit Monte Carlo simulation of the high-energy part of hadronic and electromagnetic cascades in the atmosphere is combined with a numeric solution of cascade equations for smaller energy sub-showers to obtain accurate shower predictions. The developed scheme all...

Atmospheric electric fields can have an influence on the development of extensive air showers and the radio emission they emit. For the radio detection of air showers it is of vital importance to know the magnitude of this effects and the weather conditions under which it becomes significant. The physical mechanism that produces the amplified radio pulses is investigated and simulated in two st...

In this work, charm production in the dpmjet hadronic jet simulation is compared to experimental data. Since the major application of dpmjet is the simulation of cosmic ray-induced air showers, the version of the code integrated in the CORSIKA simulation package has been used for the comparison. Wherever necessary, adjustments have been made to improve agreement between simulation and data. Wit...