INTERPLAY OF COLLECTIVE AND NONCOLLECTIVE MODES IN LOW-LYING QUADRUPOLE STATES OF BA-140, CE-142, ND-144 AND SM-146

被引：24

作者：

DINH, TK

GRINBERG, M

STOYANOV, C

机构：

[1] Inst. for Nucl. Res. and Nucl. Energy, Bulgarian Acad. of Sci., Sofia

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 1992年 / 18卷 / 02期

关键词：

D O I：

10.1088/0954-3899/18/2/014

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 low-lying quadrupole excited states in Ba-140, Ce-142, Nd-144 and Sm-146 are investigated using the quasiparticle-phonon model. The microscopic structure of these levels is analysed and the relevant spectroscopic quantities are calculated and compared with experiment. It is found that the interaction between collective and non-collective modes leads to a complex structure for the second and third 2+ states. While the first 2+ state is an isoscalar one, the second and third 2+ states have a large isovector component.

引用

页码：329 / 337

页数：9

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