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  Probing the N = 32 Shell Closure below the Magic Proton Number Z = 20: Mass Measurements of the Exotic Isotopes 52,53K

Rosenbusch, M., Ascher, P., Atanasov, D., Barbieri, C., Beck, D., Blaum, K., et al. (2015). Probing the N = 32 Shell Closure below the Magic Proton Number Z = 20: Mass Measurements of the Exotic Isotopes 52,53K. Physical Review Letters, 114(20): 202501. doi:10.1103/PhysRevLett.114.202501.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-A2B2-C Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-A2B7-2
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 Creators:
Rosenbusch, M.1, Author
Ascher, Pauline2, Author
Atanasov, Dinko2, Author           
Barbieri, C.3, Author
Beck, D.4, Author
Blaum, Klaus2, Author           
Borgmann, Christopher2, Author           
Breitenfeldt, M.5, Author
Cakirli, R. Burcu2, 6, Author           
Cipollone, A.3, Author
George, Sebastian2, Author           
Herfurth, F.4, Author
Kowalska, M.7, Author
Kreim, Susanne Waltraud2, 7, Author           
Lunney, D.8, Author
Manea, V.8, Author
Navrátil, P.9, Author
Neidherr, D.4, Author
Schweikhard, L.1, Author
Somà, V.10, 11, 12, Author
Stanja, J.13, AuthorWienholtz, F.1, AuthorWolf, Robert1, 2, Author           Zuber, K.13, Author more..
Affiliations:
1Institut für Physik, Ernst-Moritz-Arndt Universität Greifswald, 17487 Greifswald, Germany, ou_persistent22              
2Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              
3Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom, ou_persistent22              
4GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany, ou_persistent22              
5Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200d, B-3001 Heverlee, Belgium, ou_persistent22              
6Department of Physics, University of Istanbul, 34134 Istanbul, Turkey, ou_persistent22              
7CERN, 1211 Geneva 23, Switzerland, ou_persistent22              
8CSNSM-IN2P3-CNRS, Université Paris-Sud, 91405 Orsay, France, ou_persistent22              
9TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada, ou_persistent22              
10CEA-Saclay, IRFU/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France, ou_persistent22              
11Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, ou_persistent22              
12ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany, ou_persistent22              
13Institut für Kern- und Teilchenphysik, Technische Universität Dresden, 01069 Dresden, Germany, ou_persistent22              

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 MPINP: Präzisionsexperimente - Abteilung Blaum
 Abstract: The recently confirmed neutron-shell closure at N=32 has been investigated for the first time below the magic proton number Z=20 with mass measurements of the exotic isotopes K52,53, the latter being the shortest-lived nuclide investigated at the online mass spectrometer ISOLTRAP. The resulting two-neutron separation energies reveal a 3 MeV shell gap at N=32, slightly lower than for Ca52, highlighting the doubly magic nature of this nuclide. Skyrme-Hartree-Fock-Bogoliubov and ab initio Gorkov-Green function calculations are challenged by the new measurements but reproduce qualitatively the observed shell effect.

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Language(s): eng - English
 Dates: 2015-05-20
 Publication Status: Issued
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.114.202501
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 114 (20) Sequence Number: 202501 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1