The γ decay associated with the warm rotation of the superdeformed nuclei Tb151 and Pb196 has been measured with the EUROBALL IV array. Several independent quantities provide a stringent test of the population and decay dynamics in the superdeformed well. A Monte Carlo simulation of the γ decay based on microscopic calculations gives remarkable agreement with the data only assuming a large enhancement of the B(E1) strength for 1-2 MeV γ rays, which may be related to the evidence for octupole vibrations in both mass regions.
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy