Cosmic Rays in the 'Knee'-Region - Recent Results from KASCADE -

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dc.creatorKampert, K. -H.
dc.creatorCollaboration, KASCADE-Grande
dc.date2004-05-30
dc.date.accessioned2026-07-07T02:13:21Z
dc.date.available2026-07-07T02:13:21Z
dc.descriptionRecent 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 sophisticated unfolding procedures applied to the reconstructed electron and truncated muon numbers of 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. Slight differences observed between experimental data and EAS simulations provide important clues for 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. To improve the reconstruction quality and statistics around 10^17 eV, KASCADE has recently been extended by a factor 10 in area. The status and expected performance of the new experiment KASCADE-Grande is presented.
dc.description14 pages, 7 figures included, talk given at the 2004 Cracow Epiphany Conference on Astroparticle Physics, to appear in the proccedings in Acta Physica Polonica B
dc.identifierhttps://arxiv.org/abs/astro-ph/0405608
dc.identifierhttp://arxiv.org/abs/astro-ph/0405608
dc.identifierActa Phys.Polon. B35 (2004) 1799-1812
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/7784
dc.subjectAstrophysics
dc.titleCosmic Rays in the 'Knee'-Region - Recent Results from KASCADE -
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