Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-10-23
Astronomy and Astrophysics
Astrophysics
8 pages, 7 figures, to appear in Nuclear Physics B, Proceedings Supplements, as part of the volume for the CRIS 2004, Cosmic R
Scientific paper
10.1016/j.nuclphysbps.2004.10.03
Recent results from the KASCADE experiment on measurements of cosmic rays in the energy range of the knee are presented. Emphasis is placed on energy spectra of individual mass groups as obtained from an two-dimensional unfolding applied to the reconstructed electron and truncated muon numbers of each individual EAS. The data show a knee-like structure in the energy spectra of light primaries (p, He, C) and an increasing dominance of heavy ones (A > 20) towards higher energies. This basic result is robust against uncertainties of the applied interaction models QGSJET and SIBYLL which are used in the shower simulations to analyse the data. Slight differences observed between experimental data and EAS simulations provide important clues for further improvements of the interaction models. The data are complemented by new limits on global anisotropies in the arrival directions of CRs and by upper limits on point sources. Astrophysical implications for discriminating models of maximum acceleration energy vs galactic diffusion/drift models of the knee are discussed based on this data.
for the KASCADE-Collaboration
Kampert Karl-Heinz
No associations
LandOfFree
Cosmic Ray Energy Spectra and Mass Composition at the Knee - Recent Results from KASCADE - does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Cosmic Ray Energy Spectra and Mass Composition at the Knee - Recent Results from KASCADE -, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic Ray Energy Spectra and Mass Composition at the Knee - Recent Results from KASCADE - will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-485173