B(E2) values in 150Nd and the critical point symmetry X(5) -: art. no. 232501

被引:213
作者
Krücken, R [1 ]
Albanna, B
Bialik, C
Casten, RF
Cooper, JR
Dewald, A
Zamfir, NV
Barton, CJ
Beausang, CW
Caprio, MA
Hecht, AA
Klug, T
Novak, JR
Pietralla, N
von Brentano, P
机构
[1] Yale Univ, AW Wright Nucl Struct Lab, New Haven, CT 06520 USA
[2] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany
[3] Clark Univ, Worcester, MA 01610 USA
[4] Natl Inst Phys & Nucl Engn, Bucharest, Romania
关键词
D O I
10.1103/PhysRevLett.88.232501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Lifetimes of states in Nd-150 were measured using the recoil distance method following Coulomb excitation of Nd-150 by a 132 MeV S-32 beam. The experiment was performed at the Yale Tandem accelerator, employing the SPEEDY gamma-ray detector array and the New Yale Plunger Device. Reduced transition probabilities in Nd-150 are compared to the predictions of the critical point symmetry X(5) of the phase/shape transition that occurs for the N=90 rare earth isotones. Very good agreement was observed between the parameter-free (apart from scale) X(5) predictions and the low-spin level scheme of Nd-150 , revealing this as the best case thus far for the realization of the X(5) symmetry.
引用
收藏
页码:232501 / 232501
页数:4
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