Configurations of the low-lying states in 146Eu

被引：0

作者：

Zeng, Q. B. ^{[1
,2
]}

Guo, S. ^{[1
,2
]}

Liu, Z. ^{[1
,2
]}

Li, J. G. ^{[1
,2
]}

Li, H. H. ^{[1
,2
]}

Wang, J. G. ^{[1
]}

Zhang, Z. Y. ^{[1
]}

Ma, L. ^{[1
]}

Qiang, Y. H. ^{[1
]}

Huang, M. H. ^{[1
,2
]}

Li, G. S. ^{[1
,2
]}

Fang, Y. D. ^{[1
,2
]}

Liu, M. L. ^{[1
,2
]}

Ding, B. ^{[1
]}

Zheng, Y. ^{[1
,2
]}

Li, J. H. ^{[1
,2
]}

Lu, H. Y. ^{[1
,2
]}

Zhang, W. Q. ^{[1
,2
]}

Wang, K. L. ^{[1
]}

Liu, X. Y. ^{[1
,2
]}

Huang, H. ^{[1
,2
]}

Zeng, F. F. ^{[1
,2
]}

Yu, X. H. ^{[1
,2
]}

Rohilla, A. ^{[3
]}

Huang, J. F. ^{[4
]}

Fan, H. L. ^{[5
]}

Qi, C. ^{[6
]}

Yuan, C. X. ^{[7
]}

Petrache, C. M. ^{[8
]}

Lawrie, E. A. ^{[9
,10
]}

Zuo, W. ^{[1
,2
]}

Gan, Z. G. ^{[1
,2
]}

Zhou, X. H. ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[2] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China

[3] Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr E, Weihai 264209, Peoples R China

[4] Guangzhou Municipal Ecol Environm Bur, Huadu Dist Branch, Guangzhou 510800, Peoples R China

[5] Shenzhen Technol Univ, Coll Engn Phys, Shenzhen 518118, Peoples R China

[6] Royal Inst Technol, Dept Phys, S-10405 Stockholm, Sweden

[7] Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Guangdong, Peoples R China

[8] Univ Paris Saclay, CNRS, IN2P3, IJCLab, F-91405 Orsay, France

[9] Natl Res Fdn, iThemba LABS, POB 722, ZA-7131 Somerset West, South Africa

[10] Univ Western Cape, Dept Phys & Astron, P-B X17, ZA-7535 Bellville, South Africa

来源：

PHYSICAL REVIEW C | 2022年 / 106卷 / 03期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

ODD NUCLEUS PM-144; LIFETIME MEASUREMENTS; PROTON; MULTIPLETS;

D O I：

10.1103/PhysRevC.106.034307

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 states of Eu-146 populated in the decay of the 9(+) isomer were studied. The gamma-ray intensities were reanalyzed employing germanium detectors, and the lifetimes of the 6(1)(-) and 6(2)(-) states were measured using the mirror symmetric centroid difference (MSCD) method with fast-timing LaBr3(Ce) scintillator detectors. The B(M1) values of the 6(1)(-) -> 5(1)(-) and 6(2)(-) -> 5(1)(-) transitions were deduced, and all observed states were interpreted as members of the pi d(5/2)(-1)nu f(7/2) and pi g(7/2)(-1)nu f(7/2) multiplets. In particular, the 5(1)(-) level is shown to be dominated by the pi d(5/2)(-1)nu f(7/2) configuration, solving the discrepancy in its configuration assignment proposed in previous works. These experimental results were compared with the shell model calculations using several different effective interactions. The systematics of low-lying structure in the N = 83 isotones Pr-142, Pm-144, and Eu-146 was established.

引用

页数：9

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