Effect of systemN/Zon the enhanced production of even-Zfragments observed in heavy ion reactions uri icon

abstract

  • The enhancement in the production of [Formula Presented] nuclei observed in nuclear fission has also been observed in fragments produced from heavy ion collsions. Beams of [Formula Presented] and [Formula Presented] at 25 MeV/nucleon were impinged on [Formula Presented] and [Formula Presented] targets. The resulting fragments were detected using the MSU [Formula Presented] detector array, which had additional silicon detectors for better isotopic resolution. Comparison of the ratios of yields for each element showed enhancement of even-[Formula Presented] fragment production. The enhancement was more pronounced for reactions with a greater difference in the [Formula Presented] of the compound system. However, this effect was less for systems that were more neutron rich. The average [Formula Presented] for fragments also displayed an odd-even effect with a lower average [Formula Presented] for the [Formula Presented] fragments. This is related to the greater availability of neutron-poor isotopes for [Formula Presented] nuclei. 2000 The American Physical Society.

published proceedings

  • Physical Review C

author list (cited authors)

  • Winchester, E. M., Winger, J. A., Laforest, R., Martin, E., Ramakrishnan, E., Rowland, D. J., ... Norbeck, E.

citation count

  • 21

complete list of authors

  • Winchester, EM||Winger, JA||Laforest, R||Martin, E||Ramakrishnan, E||Rowland, DJ||Ruangma, A||Yennello, SJ||Westfall, GD||Vander Molen, A||Norbeck, E

publication date

  • January 2001