Transition probabilities inGd154: Evidence for X(5) critical point symmetry
作者： D. Tonev , A. Dewald , T. Klug , P. Petkov , J. Jolie
DOI: 10.1103/PHYSREVC.69.034334
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摘要: Lifetime measurements in $^{154}\mathrm{Gd}$ were performed by means of the recoil distance Doppler-shift method. Excited states populated via Coulomb excitation with a $^{32}\mathrm{S}$ beam at $110\phantom{\rule{0.3em}{0ex}}\text{MeV}$ delivered FN tandem accelerator University Cologne. The determined transition probabilities as well low-spin level scheme demonstrate good agreement predictions critical point symmetry X(5). Comparison specific experimental observables for $N=90$ rare earth isotones calculations X(5) model clearly show that is one examples realization dynamical symmetry. In addition, data are compared to fits framework IBA and general collective model.
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