Competing decay-out mechanisms of the yrast superdeformed band in ~(59)Cu

摘要

This contribution reports on the decay-out of the yrast superdeformed band in ~(59)Cu. It decays by multiple γ-ray transitions into low-spin spherical states in the first minimum of the nuclear potential in ~(59)Cu, and, in competition, by emitting two prompt protons into a spherical state in 58Ni. For the first time in A ～ 60, the role of doorway states in the course of the decay-out is discussed.