Competition between collective and noncollective excitation modes at high spin in Ba124

A. Al-Khatib et al.
Phys. Rev. C 74, 014305 – Published 11 July 2006

Abstract

High-spin states in Ba124 were investigated in two experiments using the Ni64(Ni64, 4n)Ba124 reaction at three different beam energies. In-beam γ-ray coincidences were measured with the Euroball and Gammasphere detector arrays. In the experiment with Euroball, the CsI detector array Diamant was employed to discriminate against charged-particle channels. Six new rotational bands were observed in Ba124, and previously known bands were extended to higher spins. One of the bands shows a transition from collective to noncollective behavior at high spins. Configuration assignments are suggested on the basis of comparison with cranked shell model and cranked Nilsson-Strutinsky calculations.

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  • Received 10 February 2006

DOI:https://doi.org/10.1103/PhysRevC.74.014305

©2006 American Physical Society

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Vol. 74, Iss. 1 — July 2006

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