Abstract

The yrast band was significantly extended to 14+ and the γ band to 5+ in neutron-rich 118Pd by measuring the γ-γ-γ coincidences emitted from the spontaneous fission of 252Cf with Gammasphere. The first band crossing was observed in the yrast band in 118Pd at a frequency of ħω≈0.36 MeV at the starting point of the backbending, which is similar to that found in 112−116Pd. The first bandbending in the yrast cascade in 118Pd is interpreted to be built on a two h11/2 neutron configuration based on its similarity to the yrast bands in even-even 112−116Pd. Our result indicates 118Pd still maintains a prolate shape. The quasineutron Routhian calculations indicate a lower crossing frequency for the h11/2 level.Received 10 August 2000DOI:https://doi.org/10.1103/PhysRevC.63.027302©2001 American Physical Society

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