NEUTRON ALIGNMENT AT THE FIRST CROSSING IN KR-78

被引：26

作者：

BILLOWES, J

CRISTANCHO, F

GRAWE, H

GROSS, CJ

HEESE, J

MOUNTFORD, AW

WEISZFLOG, M

机构：

[1] UNIV MANCHESTER, DEPT PHYS, MANCHESTER M13 9PL, LANCS, ENGLAND

[2] UNIV GOTTINGEN, INST PHYS 2, W-3400 GOTTINGEN, GERMANY

[3] HAHN MEITNER INST KERNFORSCH BERLIN GMBH, W-1000 BERLIN 39, GERMANY

来源：

PHYSICAL REVIEW C | 1993年 / 47卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.47.R917

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 inverted C-12(Zn-68,2n) reaction was used to populate states in Kr-78 in the region of the first alignment of the yrast band at homegaBAR=0.56 MeV. The precessions of these states in the transient magnetic field of an Fe-54 foil were measured to determine the nature of the alignment. The relatively small precession angle of the 8+ state indicates that the aligning nucleons at the first crossing are neutrons. This is contrary to expectations based on the systematics in this region, and it suggests this shape-coexistent nucleus has an oblate shape throughout the ground state band.

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页码：R917 / R921

页数：5

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