Transition probabilities in Gd-154: Evidence for X(5) critical point symmetry - INSPIRE

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Transition probabilities in Gd-154: Evidence for X(5) critical point symmetry

D. Tonev
(
- Cologne U. and
- Sofiya, Inst. Nucl. Res. and
- Yale U.
)
,
A. Dewald
(
- Cologne U. and
- Sofiya, Inst. Nucl. Res. and
- Yale U.
)
,
T. Klug
(
- Cologne U. and
- Sofiya, Inst. Nucl. Res. and
- Yale U.
)
,
P. Petkov
(
- Cologne U. and
- Sofiya, Inst. Nucl. Res. and
- Yale U.
)
,
J. Jolie
(
- Cologne U. and
- Sofiya, Inst. Nucl. Res. and
- Yale U.
)

Mar, 2004

6 pages

Published in:

Phys.Rev.C 69 (2004) 034334

DOI:

10.1103/PhysRevC.69.034334

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Abstract: (APS)

Lifetime measurements in Gd154 were performed by means of the recoil distance Doppler-shift method. Excited states of Gd154 were populated via Coulomb excitation with a S32 beam at 110MeV delivered by the FN tandem accelerator of the University of Cologne. The determined transition probabilities as well as the low-spin level scheme of Gd154 demonstrate a good agreement with the predictions of the critical point symmetry X(5). Comparison of specific experimental observables for the N=90 rare earth isotones with the calculations of the X(5) model clearly show that Gd154 is one of the good examples of the realization of the X(5) dynamical symmetry. In addition, the experimental data are compared to fits in the framework of the IBA and the general collective model.

21.60.Fw
21.10.Tg
21.10.Re
23.20.-g

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Figures(0)

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