First observation of excited states in 114Cs:: Spectroscopy of the yrast ν(h11/2)⊗π(h11/2) band

被引：6

作者：

Smith, J. F. ^{[1
]}

Fletcher, A. M.

Chiara, C. J.

Carpenter, M. P.

Chantler, H. J.

Davids, C. N.

Durell, J. L.

Fossan, D. B.

Freeman, S. J.

Janssens, R. V. F.

Koike, T.

Kondev, F. G.

LaFosse, D. R.

Lisle, J. C.

Patel, D.

Paul, E. S.

Reviol, W.

Sarantites, D. G.

Seweryniak, D.

Starosta, K.

Wadsworth, R.

Wilson, A. N.

机构：

[1] Univ Manchester, Schuster Lab, Manchester M13 9PL, Lancs, England

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

[3] Washington Univ, Dept Chem, St Louis, MO 63130 USA

[4] Argonne Natl Lab, Argonne, IL 60439 USA

[5] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England

[6] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

来源：

PHYSICAL REVIEW C | 2006年 / 73卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.73.061303

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：

Excited states have been observed for the first time in the very neutron-deficient Cs-114(55)59 nucleus. The assignment to Cs-114 was made by detecting gamma rays in coincidence with evaporated charged particles and with recoiling evaporation residues. A rotational band has been observed up to spin 21h (tentatively 25h). Excitation-energy systematics and a study of quasiparticle alignments suggest that the band is based on the nu(h(11/2))circle times pi(h(11/2)) configuration. Unlike bands based on this configuration in heavier cesium isotopes, only one signature partner is observed, and there is no evidence for signature inversion. These observations agree with theoretical calculations which predict that Coriolis-induced signature splitting should dominate at N=59.

引用

页数：5

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