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

Papuga, J., Bissell, M., Kreim, K., Blaum, K., Brown, B., Rydt, M. D., et al. (2013). Spins and Magnetic Moments of 49K and 51K: Establishing the 1/2+ and 3/2+ Level Ordering Beyond N=28. Physical Review Letters, 110(17): 172503, pp. 1-5. doi:10.1103/PhysRevLett.110.172503.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000E-F861-6 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-000E-F862-4
Genre: Journal Article

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http://link.aps.org/doi/10.1103/PhysRevLett.110.172503 (Publisher version)
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 Creators:
Papuga, J.1, Author
Bissell, M.L.1, Author
Kreim, Kim2, Author
Blaum, Klaus2, Author           
Brown, B.A.3, Author
Rydt, M. De1, Author
Garcia Ruiz, R.F. 1, Author
Heylen, H.1, Author
Kowalska, M.4, Author
Neugart, R.5, Author
Neyens, G.1, Author
Nörtershäuser, W.6, Author
Otsuka, T.7, 8, Author
Rajabali, M.M.1, Author
Sánchez, R.9, Author
Utsuno, Y.10, Author
Yordanov, Deyan T.2, Author           
Affiliations:
1Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium, ou_persistent22              
2Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              
3Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA, ou_persistent22              
4Physics Department, CERN, CH-1211 Geneva 23, Switzerland, ou_persistent22              
5Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany, ou_persistent22              
6Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany, ou_persistent22              
7Department of Physics and Center for Nuclear Study, University of Tokyo,, Hongo, Tokyo 113-0033, Japan, ou_persistent22              
8RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Japan, ou_persistent22              
9GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, ou_persistent22              
10Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan, ou_persistent22              

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 Abstract: The ground-state spins and magnetic moments of 49,51K have been measured using bunched-beam high-resolution collinear laser spectroscopy at ISOLDE CERN. For 49K a ground-state spin I=1/2 was firmly established. The observed hyperfine structure of 51K requires a spin I>1/2 and strongly suggests I=3/2. From its magnetic moment μ(51K)=+0.5129(22)μN a spin-parity Iπ=3/2+ with a dominant π1d3/2-1 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.

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Language(s): eng - English
 Dates: 2013-04-23
 Publication Status: Published online
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.110.172503
 Degree: -

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Title: Physical Review Letters
Source Genre: Journal
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Publ. Info: Woodbury, N.Y., etc. : American Physical Society.
Pages: - Volume / Issue: 110 (17) Sequence Number: 172503 Start / End Page: 1 - 5 Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1