Spins and Magnetic Moments of 49K and 51K: Establishing the 1/2+ and 3/2+ Level Ordering Beyond N=28

被引：43

作者：

Papuga, J. ^{[1
]}

Bissell, M. L. ^{[1
]}

Kreim, K. ^{[2
]}

Blaum, K. ^{[2
]}

Brown, B. A. ^{[3
,4
]}

De Rydt, M. ^{[1
]}

Ruiz, R. F. Garcia ^{[1
]}

Heylen, H. ^{[1
]}

Kowalska, M. ^{[5
]}

Neugart, R. ^{[6
]}

Neyens, G. ^{[1
]}

Noertershaeuser, W. ^{[6
,7
]}

Otsuka, T. ^{[8
,9
,10
]}

Rajabali, M. M. ^{[1
]}

Sanchez, R. ^{[11
]}

Utsuno, Y. ^{[12
]}

Yordanov, D. T. ^{[2
]}

机构：

[1] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

[2] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[3] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[4] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[5] CERN, Dept Phys, CH-1211 Geneva 23, Switzerland

[6] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55128 Mainz, Germany

[7] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[8] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[9] Univ Tokyo, Ctr Nucl Study, Tokyo 1130033, Japan

[10] RIKEN, Wako, Saitama 3510198, Japan

[11] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany

[12] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 17期

基金：

美国国家科学基金会;

关键词：

HYPERFINE-STRUCTURE; LASER SPECTROSCOPY; SHELL-MODEL; NUCLEAR; DECAY;

D O I：

10.1103/PhysRevLett.110.172503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ground-state spins and magnetic moments of K-49,K-51 have been measured using bunched-beam high-resolution collinear laser spectroscopy at ISOLDE CERN. For K-49 a ground-state spin I = 1/2 was firmly established. The observed hyperfine structure of K-51 requires a spin I > 1/2 and strongly suggests I = 3/2. From its magnetic moment mu(K-51) = +0.5129(22)mu(N) a spin-parity I-pi = 3/2(+) with a dominant pi 1d(3/2)(-1) hole configuration was deduced. This establishes for the first time the reinversion of the single-particle levels and illustrates the prominent role of the residual monopole interaction for single-particle levels and shell evolution. DOI: 10.1103/PhysRevLett.110.172503

引用

页数：5

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