Abstract
In-beam γ-ray spectroscopy studies of high-spin states of 62,64 Zn have been performed via the fusion-evaporation reaction 40Ca + 28Si and a charged-particle filter. Levels up to an excitation energy of about 14 MeV have been observed. The results are compared with a shell-model calculation in the k ≤ 3 model space with (0 f 5/21p 3/21p 1/2)A - 56 - k(0g 9/2)k. The parity changes in yrast sequences can be well understood in terms of crossing of level sequences with different k configurations.
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