INTERACTING-BOSON-FERMION-APPROXIMATION DESCRIPTION OF NEGATIVE-PARITY STATES IN EVEN-ODD YB ISOTOPES

被引：2

作者：

HSIEH, ST ^{[1
]}

CHUU, DS ^{[1
]}

机构：

[1] NATL CHIAO TUNG UNIV, DEPT ELECTROPHYSIOL, HSINCHU, TAIWAN

来源：

PHYSICAL REVIEW C | 1991年 / 44卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.44.1920

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 negative-parity energy levels of the even-odd Yb isotopes, 163Yb, 165Yb, Yb-169, Yb-171, and Yb-173, are studied systematically within the framework of the extended interacting-boson-fermion-approximation (IBFA) model in which one odd fermion is couplied with a boson core. The boson core is described with the IBA model but allowing one boson to break into a quasifermion pair. The odd fermion is assumed to be in one of the f7/2 and p3/2 single-particle orbitals while the fermion pair is allowed to occupy the single-particle orbit i13/2. It was found that the negative-parity energy levels of these even-odd Yb isotopes and the values of transition quadrupole moments for the ground-state rotational band of Yb-173 can be reproduced in fairly good agreement with the observed data.

引用

页码：1920 / 1928

页数：9

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