- Conference date: 29 July-2 August 2002
- Location: Berkeley, California (USA)
High‐energy γ rays emitted in the symmetric reaction 90Zr + 89Y have been measured at the Argonne National Laboratory using the LEPPEX array coupled to the Fragment Mass Analyzer (FMA). The high‐energy γ‐ray spectra emitted by the giant dipole resonance built on excited states and associated with the evaporation of 0, 1 and 2 nucleons have been measured. The statistical model analysis indicates that the radiative‐fusion process, namely the 0 particle emission channel, can be well described as a compound nucleus decay channel. In addition, the analysis of the high‐energy γ‐ray spectra associated with the different evaporation channels provides the first evidence that shell effects still play a role in determining the nuclear shapes of 179 Au in the temperature interval 0.5–1 MeV.
- Compound nucleus reactions
- Nuclear resonance reactions
- Emission spectra
- Excited states
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