Low-spin γ-ray spectroscopy of the (critical-point?) nucleus 122Ba -: art. no. 014313

被引：21

作者：

Fransen, C ^{[1
]}

Pietralla, N

Linnemann, A

Werner, V

Bijker, R

机构：

[1] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

[2] Yale Univ, Dept Phys, AW Wright Nucl Struct Lab, New Haven, CT 06520 USA

[3] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[4] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico

来源：

PHYSICAL REVIEW C | 2004年 / 69卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.69.014313

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The nucleus Ba-122 possesses an excitation energy ratio R-4/2=E(4(1)(+))/E(2(1)(+))=2.90 matching exactly the value predicted by the recently discussed X(5) solution of the Bohr-Hamiltonian. Besides the ground state band, other low-spin positive-parity bands of Ba-122 are unknown hampering detailed comparison to the theory. Excited low-spin states of Ba-122 have been studied by in-beam gammagamma-coincidence spectroscopy with the Sn-112(C-12,2n)Ba-122 reaction. A level structure was observed which we interpret as a part of the gamma band of Ba-122.

引用

页码：143131 / 143136

页数：6

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