High-spin states in Ba-124 were investigated in two experiments using the Ni-64(Ni-64, 4n)Ba-124 reaction at three different beam energies. In-beam gamma-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 Ba-124, 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.
|Titolo:||Competition between collective and noncollective excitation modes at high spin in 124Ba|
|Parole Chiave:||Gamma-ray spectroscopy ; Ba-Ce-region ; rotational bands ; mass region ; terminating bands ; XE-nuclei ; states ; alignments ; hyperdeformation ; spectrometer|
|Settore Scientifico Disciplinare:||Settore FIS/04 - Fisica Nucleare e Subnucleare|
Settore FIS/01 - Fisica Sperimentale
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||10.1103/PhysRevC.74.014305|
|Appare nelle tipologie:||01 - Articolo su periodico|