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Fission fragment folding angle distributions for the systems [Formula Presented], and [Formula Presented] in the energy range [Formula Presented]

  • S. Kailasb(Author)
    ,
  • D. M. Nadkarnib(Author)
    ,
  • A. Chatterjeeb(Author)
    ,
  • A. Saxenab(Author)
    ,
  • S. S. Kapoorb(Author)
    ,
  • R. Vandenboscha(Author)
  • aUniversity of Washington
    ,
  • bBhabha Atomic Research Centre
Research Output: Contribution to journal Article Peer-review

Abstract

Fission fragment folding angle distributions have been measured for the systems [Formula Presented] and [Formula Presented] populating the same compound nucleus [Formula Presented] and at similar excitation energies [Formula Presented] 45–100 MeV). The full momentum transfer and incomplete momentum transfer fusion-fission components have been separated over the bombarding energy range [Formula Presented] It is observed that the largest value of the ratio of the transfer fission to the total fission is around 10 to [Formula Presented] at the highest energy investigated. Over the energy range mentioned above, it is found that the transfer fission corrected fission fragment anisotropies are not significantly different from the values already obtained from the analysis of the total fission data reported earlier and hence the conclusions reached from the inclusive data remain unchanged. The anisotropy data were analyzed for the two cases corresponding to fission events with sizable fission barriers [Formula Presented] and with smaller fission barriers [Formula Presented] It was interesting to find that the effective moment of inertia [Formula Presented] values deduced from the latter component were consistent with the values from Sierk prescription used in the former case.