Energy spectra and composition near the knee

M. A.K. Glasmacher, M. A. Catanese, M. C. Chantell, C. E. Covault, J. W. Cronin, B. E. Fick, L. F. Fortson, J. W. Fowler, K. D. Green, D. B. Kieda, J. Matthews, B. J. Newport, D. F. Nitz, R. A. Ong, S. Oser, D. Sinclair, J. C. Van der Velde

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Measurements with the CASA-MIA experiment show the cosmic ray spectral knee to be a smooth transition. The composition is consistent with direct measurements at 100 TeV but becomes heavier through the knee region. The smooth change results from using a composition-independent energy reconstruction. Data are consistent with rigidity dependent cutoffs[1].

Original languageEnglish (US)
Pages (from-to)241-243
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
Issue number1-2
StatePublished - Mar 1999


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