Positive-parity rotational band in 158Tb

被引：1

作者：

Zhong, J. ^{[1
,2
]}

Ma, H. L. ^{[1
]}

Hu, S. P. ^{[1
]}

Wu, X. G. ^{[1
]}

Sun, H. B. ^{[2
]}

Li, G. S. ^{[1
]}

He, C. Y. ^{[1
]}

Zheng, Y. ^{[1
]}

Li, C. B. ^{[1
]}

Chen, Q. M. ^{[1
]}

Li, H. W. ^{[1
,3
]}

Wu, Y. H. ^{[1
,3
]}

Luo, P. W. ^{[1
,2
]}

机构：

[1] China Inst Atom Energy, Beijing 102413, Peoples R China

[2] Shenzhen Univ, Coll Phys Sci & Technol, Shenzhen 518060, Peoples R China

[3] Jilin Univ, Coll Phys, Changchun 621010, Peoples R China

来源：

PHYSICAL REVIEW C | 2015年 / 92卷 / 02期

基金：

中国国家自然科学基金;

关键词：

DOUBLY-ODD NUCLEI; RARE-EARTH NUCLEI; HIGH-SPIN STATES; SIGNATURE INVERSION; TRIAXIALITY; MODEL;

D O I：

10.1103/PhysRevC.92.024308

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：

Excited states of the odd-odd nucleus Tb-158 have been studied via the Sm-154(Li-7 ,3n) Tb-158 reaction at a beam energy of 27 MeV. The new level scheme of Tb-158 involving a positive parity rotational band is established up to excitation energy similar to 2.3 MeV and spin similar to 17h. By comparing with the rotational bands in the neighboring nuclei Tb-157 and Gd-157, the configuration was tentatively assigned as pi d(5/2) circle times vi(13/2), and the phenomenon of signature inversion is discussed.

引用

页数：4

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