The gSeaGen framework has been upgraded to simulate events detectable in neutrino telescopes induced by or cosmic ray interactions. new version is well-suited generate interactions at energies from a few MeV EeV, profiting the latest GENIE extensions lower and higher energies. In addition, brand functionality propagate leptons CORSIKA air showers developed. Novel features of will be presented, ...

Air showers recorded by the Haverah Park Array during the years 1974-1987 have been re-analysed. For the original estimate of the energy spectrum, a relationship between the ground parameter ρ(600) and the primary energy, as determined by Hillas in the 1970s, was used. Here we describe the energy spectrum obtained using the QGSJET98 interaction model in the CORSIKA Monte Carlo code, together wi...

The radio emission from cosmic ray air showers consists in large part of geosynchrotron radiation. Since the radiation mechanism is based on particle acceleration, atmospheric electric fields may play an important role. LOPES results show that electric fields under fair weather conditions do not alter the radio emission considerably, but during thunderstorms strongly amplified pulses are measur...

In this thesis a characterization of air showers induced by magnetic monopoles is presented. Monopoles are predicted to exist and be accelerated to relativistic velocities. High energy monopoles traversing earth’s atmosphere continuously deposit energy, inducing an air shower. These air showers have been described based on simulations run inCORSIKA. It was found thatmonopole air showers are con...

Hadronic interaction models are a core ingredient of simulations extensive air showers and pose the major source uncertainties predictions shower observables. Recently, Pythia~8, hadronic model popular in accelerator-based high-energy physics, became usable as well. We have integrated Pythia~8 with its new capabilities into simulation framework CORSIKA~8. First results show significantly shallo...

Simulations of radio emission from extensive air showers we have published so far were performed with a Monte Carlo code using analytical parametrisations to describe the spatial, temporal, energy and angular particle distributions in the air shower. A new version of our simulation code, which replaces these parametrisations with precise, multi-dimensional histograms derived from per-shower COR...

Particle lateral distributions were investigated in cosmic ray air showers with energy $E_0 \simeq 10^{18}$ eV registered at the Yakutsk array surface and underground scintillation detectors $\simeq 1 \times \sec\theta$~GeV threshold during period of continuous observations from 1986 to 2016. The analysis covers events arrival direction zenith angles $\theta \le 60^{\circ}$ within five interval...

Using the large hadron calorimeter of the KASCADE experiment, hadronic cores of extensive air showers have been studied. The hadron lateral and energy distributions have been investigated in order to study the reliability of the shower simulation program CORSIKAwith respect to particle transport, decays, treatment of low-energy particles, etc. A good description of the data has been found at la...

The capability of the Muon Tracking Detector to measure the radial and tangential angles of muons in extensive air showers, in combination with the shower direction as determined by the scintillator array of KASCADE experiment, has been investigated. Due to different characteristics in shower development of light and heavy primary particles the radial angle is sensitive to the mass of them. For...