How to measure the spreading width for decay of superdeformed nuclei

Abstract

A new expression for the branching ratio for the decay via the E1 process in the normal-deformed band of superdeformed nuclei is given within a simple two-level model. Using this expression, the spreading or tunneling width Gamma^downarrow for superdeformed decay can be expressed entirely in terms of experimentally known quantities. We show how to determine the tunneling matrix element V from the measured value of Gamma^downarrow and a statistical model of the energy levels. The accuracy of the two-level approximation is verified by considering the effects of the other normal-deformed states.

4 pages, 4 figures

References in corpus (3)

• Simple model for decay of superdeformed nuclei
• Decay out of a Superdeformed Band
• Spreading Width for Decay out of a Superdeformed Band

Cited by in corpus (4)

• How large is the spreading width of a superdeformed band?
• Universality of Decay out of Superdeformed Bands in the 190 Mass Region
• Determining the Energy Barrier for Decay out of Superdeformed Bands
• Exactly Solvable Model for the Decay of Superdeformed Nuclei