ROTATIONAL BANDS AND NEUTRON ALIGNMENTS IN NEUTRON-RICH ODD-A CADMIUM ISOTOPES

被引：17

作者：

REGAN, PH

MIDDLETON, JS

POHL, KR

BUSH, JE

RAINES, PE

BALAMUTH, DP

MULLINS, SM

WARD, D

GALINDOURIBARRI, A

JANZEN, VP

PILOTTE, S

机构：

[1] MCMASTER UNIV, DEPT PHYS & ASTRON, HAMILTON L8S 4M1, ONTARIO, CANADA

[2] UNIV PENN, DEPT PHYS, PHILADELPHIA, PA 19104 USA

[3] AECL RES, CHALK RIVER LABS, CHALK RIVER K0J 1J0, ON, CANADA

[4] UNIV OTTAWA, DEPT PHYS, OTTAWA K1N 6N5, ONTARIO, CANADA

[5] MCMASTER UNIV, DEPT PHYS & ASTRON, HAMILTON L8S 4M1, ONTARIO, CANADA

来源：

PHYSICAL REVIEW C | 1994年 / 49卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.49.1885

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：

High-spin states in Cd-109, Cd-111 have been investigated with the reaction Zr-96(O-18,xn) Cd-114-x at beam energies of 60 and 70 MeV. The decoupled yrast bands observed in both nuclei are interpreted as being built upon a low-K h11/2 -quasineutron configuration. Both structures exhibit band crossings corresponding to the rotational alignment of a pair of h11/2 quasineutrons. Two positive-parity bands built on a g7/2-quasineutron configuration are observed in Cd-109. These exhibit a signature inversion in the region of the first (nuh112)2 alignment. This may be associated with some softness to triaxiality. The results are discussed in terms of the cranked shell model, total Routhian surface calculations, and the systematics of neighboring nuclei.

引用

页码：1885 / 1895

页数：11

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