PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - High-light Talks
Air Shower Simulation with a New Generation of post-LHC Hadronic Interaction Models in CORSIKA
T. Pierog
Full text: pdf
Pre-published on: October 23, 2017
Published on: August 03, 2018
The interpretation of EAS measurements strongly depends on detailed air shower simulations. CORSIKA is one of the most commonly used air shower Monte Carlo programs. The main source of uncertainty in the prediction of shower observables for different primary particles and energies is currently dominated by differences between hadronic interaction models even after recent updates taking into account the first LHC data. As a matter of fact the model predictions converged but at the same time more precise air shower and LHC measurements introduced new constraints. This year a new generation of hadronic interaction models isreleased in CORSIKA. Sibyll 2.3c and DPMJETIII.17-1 will be available in 2017 with improved description of particle production and in particular the production of charmed particles. The impact of these hadronic interaction models on air shower predictions are presented here and compared to the first generation of post-LHC models, EPOS LHC and QGSJETII-04. The performance of the new models on standard air shower observables is derived. Due to the various approaches in the physics treatment, there are still large differences in the model predictions but this can already be partially resolved by the comparison with the latest LHC data.
DOI: https://doi.org/10.22323/1.301.1100
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