Cosmic ray energy spectra derived from KASCADE-Grande data using post-LHC hadronic interaction models
Abstract
KASCADE-Grande was dedicated to measuring the energy spectrum and mass composition of cosmic rays in the energy range of 10 PeV to 1 EeV. We observed a knee-like structure in the heavy mass component at around 100 PeV and an ankle-like structure in the light component. In this contribution, we present updated energy spectra based on shower size measurements, using the post-LHC hadronic models QGSJet-II-04, EPOS-LHC, and SIBYLL 2.3d, including accounting for shower-to-shower fluctuations. In addition, the newly released EPOS-LHC-R model is tested for the first time with KASCADE-Grande. We will compare and discuss the results obtained using the different hadronic interaction models.
Cite
@article{arxiv.2508.21646,
title = {Cosmic ray energy spectra derived from KASCADE-Grande data using post-LHC hadronic interaction models},
author = {D. Kang and J. C. Arteaga-Velázquez and M. Bertaina and A. Chiavassa and A. L. Colmenero-César and K. Daumiller and V. de Souza and R. Engel and A. Gherghel-Lascu and C. Grupen and A. Haungs and J. R. Hörandel and T. Huege and K. -H. Kampert and K. Link and H. J. Mathes and S. Ostapchenko and T. Pierog and D. Rivera-Rangel and M. Roth and H. Schieler and F. G. Schröder and O. Sima and A. Weindl and J. Wochele and J. Zabierowski},
journal= {arXiv preprint arXiv:2508.21646},
year = {2025}
}
Comments
Presented at the 39th International Cosmic Ray Conference (ICRC2025)