AN I13/2 INTRUDER BAND IN GD-139

被引：23

作者：

MA, R

FOSSAN, DB

PAUL, ES

XU, N

POYNTER, RJ

REGAN, PH

WADSWORTH, R

HE, YJ

JENKINS, I

METCALFE, MS

MULLINS, SM

NOLAN, PJ

机构：

[1] UNIV YORK,DEPT PHYS,YORK YO1 5DD,N YORKSHIRE,ENGLAND

[2] UNIV LIVERPOOL,OLIVER LODGE LAB,LIVERPOOL L69 3BX,ENGLAND

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 1990年 / 16卷 / 08期

关键词：

D O I：

10.1088/0954-3899/16/8/019

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：

A rotational band of eleven gamma -rays has been observed in 139Gd showing an enhanced moment of inertia indicative of a band of higher quadrupole deformation than the low-lying states. This band is believed to be built on a single nu i13/2 intruder orbital, and extends the systematics of such bands, recently observed in several samarium nuclei (Z=62), to gadolinium (Z=64). An attempt is made to deduce the spins for levels within this band by fitting the extracted moment of inertia with a power expansion in terms of the rotational frequency. This method is also used to deduce the spins for other bands of enhanced deformation in this mass region; the method is shown to reproduce the known spins for the nu i13/2 intruder bands in the 135,137Sm isotopes.

引用

页码：1233 / 1240

页数：8

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