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  Observation of a crossover of S2n in the island of inversion from precision mass spectrometry

Kwiatkowski, A., Andreoiu, C., Bale, J., Chaudhuri, A., Chowdhury, U., Malbrunot-Ettenauer, S., et al. (2015). Observation of a crossover of S2n in the island of inversion from precision mass spectrometry. Physical Review C, 92(6): 061301(R). doi:10.1103/PhysRevC.92.061301.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0029-7D4E-2 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0029-7D4F-F
Genre: Journal Article

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http://link.aps.org/doi/10.1103/PhysRevC.92.061301 (Publisher version)
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 Creators:
Kwiatkowski, A.A.1, Author
Andreoiu, C.2, Author
Bale, J.C.1, 3, Author
Chaudhuri, A.1, Author
Chowdhury, U.1, 4, Author
Malbrunot-Ettenauer, S.1, 5, Author
Gallant, A.T.1, 5, Author
Grossheim, A.1, Author
Gwinner, G.4, Author
Lennarz, A.1, 6, Author
Macdonald, T.D.1, 5, Author
Rauch, T.J.M.1, 7, Author
Schultz, B.E.1, Author
Seeraji, S.2, Author
Simon, M.C.1, Author
Simon, Vanessa V.1, 8, 9, Author           
Lunney, D.10, Author
Poves, A.1, 11, Author
Dilling, J.1, 5, Author
Affiliations:
1TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada, ou_persistent22              
2Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada, ou_persistent22              
3Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada, 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              
7Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany, ou_persistent22              
8Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              
9Fakultät für Physik und Astronomie, Ruprecht-Karls-Universität, 69120 Heidelberg, Germany, ou_persistent22              
10CSNSM-IN2P3-CNRS, Université Paris 11, 91405 Orsay, France, ou_persistent22              
11Departamento de Física Téorica and IFT-UAM/CSIC, Universidad Autónoma de Madrid, E-28049 Madrid, Spain, ou_persistent22              

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 MPINP: Präzisionsexperimente - Abteilung Blaum
 Abstract: Mass measurements have been performed of the neutron-rich Al isotopes near N≈20, along the island of inversion. In general, the precision of the mass values was improved by an order of magnitude. Based on these new and more accurate data, we find the two-neutron separation energy of 3413Al to be 24.8(10.8) keV less than that of 3312Mg. This represents the first known crossover on the S2n surface of the chart of nuclides. Large-scale shell-model calculations show that the crossover can be attributed to exceptionally large energy gains of the Mg isotopes in the island of inversion.

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Language(s): eng - English
 Dates: 2015-12-07
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevC.92.061301
 Degree: -

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Title: Physical Review C
  Other : Phys. Rev. C
Source Genre: Journal
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Publ. Info: New York, NY : American Physical Society
Pages: - Volume / Issue: 92 (6) Sequence Number: 061301(R) Start / End Page: - Identifier: ISSN: 0556-2813
CoNE: https://pure.mpg.de/cone/journals/resource/954925225009