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  Evidence for the extinction of the N = 20 neutron-shell closure for 32Mg from direct mass measurements

Chaudhuri, A., Andreoiu, C., Brunner, T., Chowdhury, U., Ettenauer, S., Gallant, A., et al. (2013). Evidence for the extinction of the N = 20 neutron-shell closure for 32Mg from direct mass measurements. Physical Review C, 88(5): 054317, pp. 1-5. doi:10.1103/PhysRevC.88.054317.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-B0C0-5 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-B0C1-3
Genre: Journal Article

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http://link.aps.org/doi/10.1103/PhysRevC.88.054317 (Publisher version)
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 Creators:
Chaudhuri, A.1, Author
Andreoiu, C.2, Author
Brunner, T.1, 3, Author
Chowdhury, U.1, 4, Author
Ettenauer, S.1, 5, Author
Gallant, A.T.1, 5, Author
Gwinner, G.4, Author
Kwiatkowski, A.A.1, Author
Lennarz, A.1, 6, Author
Lunney, D.7, Author
Macdonald, T.D.1, 5, Author
Schultz, B.E.1, Author
Simon, M.C.1, Author
Simon, Vanessa V.1, 8, Author           
Dilling, J.1, 5, Author
Affiliations:
1TRIUMF, 4004 Wesbrook Mall, Vancouver, BBritish British Columbia V6T 2A3, Canadaritish Columbia V6T 2A3, Canada, ou_persistent22              
2Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada, ou_persistent22              
3Department of Physics, Stanford University, Stanford, California 94305, USA, ou_persistent22              
4Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada, ou_persistent22              
5Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada, ou_persistent22              
6Institut für Kernphysik, Westfälische Wilhelms-Universität, 48149 Münster, Germany, ou_persistent22              
7CSNSM-IN2P3-CNRS, Université de Paris Sud, 91405 Orsay, France, ou_persistent22              
8Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              

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 Abstract: The “island of inversion” around 32Mg is one of the most important paradigms for studying the disappearance of the stabilizing “magicity” of a shell closure. We present the first Penning-trap mass measurements of the exotic nuclides 29−31Na and 30−34Mg, which allow precise determination of the empirical shell gap for 32Mg. The new value of 1.10(3) MeV is the smallest observed shell gap for any nuclide with a canonical magic number.

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Language(s): eng - English
 Dates: 2013-11-18
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevC.88.054317
 Degree: -

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Title: Physical Review C
Source Genre: Journal
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Publ. Info: New York, NY : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 88 (5) Sequence Number: 054317 Start / End Page: 1 - 5 Identifier: ISSN: 0556-2813
CoNE: https://pure.mpg.de/cone/journals/resource/954925225009