Elsevier

Nuclear Physics A

Volume 564, Issue 2, 15 November 1993, Pages 285-313
Nuclear Physics A

The role of the shape driving h12 neutron orbital in 108Cd

https://doi.org/10.1016/0375-9474(93)90522-YGet rights and content

Abstract

The nucleus 108Cd has been studied using a heavy-ion reaction and the NORDBALL multi-detector array. The yrast band has been extended to Ip = 24+, and nine quasi-rotational side bands have been identified. The nh112 negative-parity orbital is found to play a dominant role both in the low-spin as well as in the high-spin structure of 108Cd. The first band crossing in the yrast band is caused by the h112 neutrons. The 10+ state of the aligned n(h112)2 configuration decays strongly into a low-lying low-spin intruder-like positive-parity band. It is suggested that this intruder structure is dominated by a non-aligned n(h112)2 configuration. For the first time in this mass region, we report a collective, possibly prolate, M1 band built on the p(g92)−2 configuration. The experimental results are discussed in terms of total-routhian-surface and cranked-shell-model calculations.

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