BACKBENDING IN W-180 - A T-BAND CROSSING

被引：51

作者：

WALKER, PM

YEUNG, KC

DRACOULIS, GD

REGAN, PH

LANE, GJ

DAVIDSON, PM

STUCHBERY, AE

机构：

[1] Department of Nuclear Physics, Research School of Physical Sciences and Engineering, The Australian National University, Canberra

来源：

PHYSICS LETTERS B | 1993年 / 309卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(93)91496-A

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A Fermi-aligned (i13/2)2 rotational band, with K almost-equal-to 8, has been observed in an even-even nucleus, W-180. Its structure corresponds to a t-band in the tilted-cranking representation. it crosses the ground-state band at I= 16HBAR, giving rise to backbending in the yrast sequence. Contrary to the usual interpretation, backbending in this case is not caused by the s-band. Comparison is made with other possible t-band crossings in the A almost-equal-to 180 region.

引用

页码：17 / 22

页数：6

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