Department of Mathematical Physics

Ingemar Ragnarsson

Doorway States in the Gamma Decay-Out of the Yrast Superdeformed Band in 59Cu.

C. Andreoiu, T. Dossing, C. Fahlander, I. Ragnarsson, D. Rudolph, S. Åberg, ....

Abstract: The decay-out process of the yrast superdeformed band in 59Cu has been investigated. The firm determination of spin, parity, excitation energy and configuration of the states involved in this process constitutes a unique situation for a detailed understanding of the decay-out mechanism. A theoretical model is introduced that includes a residual interaction and tunnelling matrix element between bands, calculated in the configuration dependent cranked Nilsson-Strutinsky model. This interactin causes the decay to occur via a small number of observed doorway states.