Abstract
We used CR39 plastic nuclear track detectors (C12H18O7) in combination with automatic track measurement to determine total charge changing and partial cross sections for the production of fragments of chargeZ=6 andZ=7 in collisions of16O beam nuclei at energies of 60 GeV/nucleon and 200 GeV/nucleon in targets H, C, CR39, CH2, Al, Cu, Ag and Pb. Total charge changing cross sections due to the process of electromagnetic dissociation are calculated based on a theoretical model and found to be consistent with total and partial electromagnetic dissociation cross sections derived from this experiment. The energy dependence of pure nuclear fragmentation is investigated.
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We are grateful to the staff of CERN and to the EMU01 collaboration for giving us some of their beam time. We thank G.R. Vanderhaeghe and K. Søderstrøm for support at exposure. We thank G. Baur and C.A. Bertulani for their help to perform the theoretical part of this paper and our Siegen collegues of the theory division for fruitful discussions. This work was funded by the Bundesminister for Research and Technology (BMFT) under contract number 06 SI 985.
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Brechtmann, C., Heinrich, W. Fragmentation cross sections of16O at 60 and 200 GeV/nucleon. Z. Physik A - Atomic Nuclei 330, 407–416 (1988). https://doi.org/10.1007/BF01290126
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DOI: https://doi.org/10.1007/BF01290126