Breakup time scale studied in the 8 GeV/cπ-+197Au reaction
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Experimental data from the reaction of an [Formula Presented] beam incident on a [Formula Presented] target have been analyzed in order to investigate the breakup time scale for hot residues. Helium nuclei angular distributions and energy spectra supported by a momentum tensor analysis suggest that at large excitation energy, above [Formula Presented] highly excited heavy fragments are separated promptly after the thermalization. A binary fission-like mechanism fits the experimental data at low excitation energies, but seems unable to reproduce the data at excitation energies above [Formula Presented]. © 2002 The American Physical Society.
author list (cited authors)
Pienkowski, L., Kwiatkowski, K., Lefort, T., Hsi, W., Beaulieu, L., Viola, V. E., ... Remsberg, L. P.