Simple model for decay of superdeformed nuclei

Details Simple model for decay of superdeformed nuclei Simple model for decay of superdeformed nuclei

1999-06-17

arxiv.org/abs/nucl-th/9906052v1

Phys.Rev. C60 (1999) 051305

Physics

Nuclear Physics

Nuclear Theory

4 pages

Scientific paper

10.1103/PhysRevC.60.051305

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 A~150 mass region, where the tunneling dynamics is coherent, and in the A~190 mass region, where the tunneling dynamics is incoherent.

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