Test of interaction models up to 40 PeV by studying hadronic cores of EAS
Dec, 2007
13 pages
Published in:
- J.Phys.G 34 (2007) 2581-2593
Experiments:
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Abstract: (IOP)
The interpretation of extensive air shower measurements often requires a comparison with shower simulations in the atmosphere. These calculations rely on hadronic interaction models which have to extrapolate into kinematical and energy regions not explored by present-day collider experiments. The KASCADE experiment with its large hadron calorimeter and the detector array for the electromagnetic and muonic components provides experimental data to check such interaction models. For the simulatio ns the program CORSIKA is used, which has several hadronic event generators embedded. For high-energy interactions the models DPMJET, , QGSJET and SIBYLL have been used. Low-energy interactions have been treated by GHEISHA and FLUKA. Different hadronic ob servables are investigated as well as their correlations with the electromagnetic and muonic shower components up to primary energies of about 40 PeV. Although the predictions of the more recent models are to a large extent compatible with the measured da ta within the range given by proton and iron primary particles, there are still significant differences between the individual models.- cosmic radiation
- showers: air
- showers: spatial distribution
- interaction: hadronic
- programming: Monte Carlo
- electron: multiplicity
- muon: multiplicity
- hadron: multiplicity
- hadron: energy spectrum
- numerical calculations: Monte Carlo
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