QGSJET-II: results for extensive air showers

Abstract

The new hadronic Monte Carlo model QGSJET-II is applied for extensive air shower (EAS) calculations. The obtained results are compared to the predictions of the original QGSJET and of the SIBYLL 2.1 interaction models. It is shown that non-linear effects change substantially model predictions for hadron-nucleus interactions and produce observable effects for calculated EAS characteristics. Finally the impact of the new model on the interpretation of air shower array data is discussed.

To appear in the proceedings of 13th International Symposium on Very High-Energy Cosmic Ray Interactions at the NESTOR Institute, Pylos, Greece, 6-12 Sep 2004

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