University of Kansas
This past year the Kansas group achieved its objective of studying the fusion-fission mechanism for three different entrance channels populating {sup 48}Cr with the measurement of the {sup 20}Ne+{sup 28}Si reaction. Previously the group had studied the {sup 24}Mg+{sup 24}Mg reaction in a particle-only measurement and the {sup 36}Ar+{sup 12}C reaction in a particle-gamma coincidence measurement. The latest experiment was done at the ATLAS gamma-ray facility and employed a particle-particle-gamma coincidence arrangement. The {sup 20}Ne+{sup 28}Si data seem to confirm the picture that has been emerging of a population of states in the fission fragments that is largely determined by a statistical phase space. Significant discrepancies in the observed and predicted population for some excitations, however, suggest that either a different reaction mechanism may be involved in these populations, or a different spin distribution of the compound nucleus is present than is assumed for the calculations. The group is now working with the data for all three reactions in an attempt to develop an overall consistent picture.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- OSTI ID:
- 166389
- Report Number(s):
- ANL-95/14; ON: DE96000985; TRN: 95:007970-0102
- Resource Relation:
- Other Information: PBD: Aug 1995; Related Information: Is Part Of Physics Division Annual Report, April 1, 1994--March 31, 1995; Henning, W.F.; PB: 207 p.
- Country of Publication:
- United States
- Language:
- English
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