Recent theoretical investigations of the decay mechanism out of a superdeformed nuclear band have yielded qualitatively different results, depending on the relative values of the relevant decay widths. We present a simple two-level model for the dynamics of the tunneling between the superdeformed and normal-deformed bands, which treats decay and tunneling processes on an equal footing. The previous theoretical results are shown to correspond to coherent and incoherent limits of the full tunneling dynamics. Our model accounts for experimental data in both the [Formula Presented] mass region, where the tunneling dynamics are coherent, and in the [Formula Presented] mass region, where the tunneling dynamics are incoherent.
ASJC Scopus subject areas
- Nuclear and High Energy Physics