Decay Out of the Doubly Magic Superdeformed Band in the N=Z Nucleus Z60n

The doubly magic superdeformed band in the N=Z nucleus 60Zn has been identified. Linking transitions connecting this band to the yrast line provide the first spin, parity, and excitation energy measurements for superdeformed states in the A∼60 region. The stretched- E2 character and relatively large B(E2) values of these transitions suggest a nonstatistical decay-out process.