THE ROLE OF THE SHAPE DRIVING H(11/2) NEUTRON ORBITAL IN CD-108

被引：50

作者：

THORSLUND, I

FAHLANDER, C

NYBERG, J

JUUTINEN, S

JULIN, R

PIIPARINEN, M

WYSS, R

LAMPINEN, A

LONNROTH, T

MULLER, D

TORMANEN, S

VIRTANEN, A

机构：

[1] UNIV COPENHAGEN,NIELS BOHR INST,TANDEM ACCELERATOR LAB,DK-4000 ROSKILDE,DENMARK

[2] UNIV JYVASKYLA,DEPT PHYS,SF-40100 JYVASKYLA,FINLAND

[3] MANNE SIEGBAHN INST PHYS,S-10405 STOCKHOLM,SWEDEN

[4] ABO AKAD UNIV,DEPT PHYS,SF-20500 TURKU,FINLAND

来源：

NUCLEAR PHYSICS A | 1993年 / 564卷 / 02期

关键词：

ZR-96(O-16; 4N); E=74; 75; MEV; MEASURED E-GAMMA; I-GAMMA; I-GAMMA(THETA); GAMMA-GAMMA-COINCIDENCES; CD-108 DEDUCED LEVELS; I; PI; GAMMA-BRANCHING; B(M1)/B(E2); RATIOS; EXPERIMENTAL ROUTHIANS; ALIGNED ANGULAR MOMENTUM; ENRICHED TARGETS; ARRAY OF COMPTON-SUPPRESSED GE-DETECTORS; TRS CALCULATIONS;

D O I：

10.1016/0375-9474(93)90522-Y

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 Cd-108 has been studied using a heavy-ion reaction and the NORDBALL multi-detector array. The yrast band has been extended to I(pi) = 24+, and nine quasi-rotational side bands have been identified. The nuh11/2 negative-parity orbital is found to play a dominant role both in the low-spin as well as in the high-spin structure of Cd-108. The first band crossing in the yrast band is caused by the h11/2 neutrons. The 10+ state of the aligned nu(h11/2)2 configuration decays strongly into a low-lying low-spin intruder-like positive-parity band. It is suggested that this intruder structure is dominated by a non-aligned nu(h11/2)2 configuration. For the first time in this mass region, we report a collective, possibly prolate, Ml band built on the pi(g9/2)-2 configuration. The experimental results are discussed in terms of total-routhian-surface and cranked-shell-model calculations.

引用

页码：285 / 313

页数：29

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