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  Collective degrees of freedom of neutron-rich A ≈ 100 nuclei and the first mass measurement of the short-lived nuclide 100Rb

Manea, V., Atanasov, D., Beck, D., Blaum, K., Borgmann, C., Cakirli, R. B., et al. (2013). Collective degrees of freedom of neutron-rich A ≈ 100 nuclei and the first mass measurement of the short-lived nuclide 100Rb. Physical Review C, 88(5): 054322, pp. 1-10. doi:10.1103/PhysRevC.88.054322.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-B91A-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-B91B-2
Genre: Journal Article

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 Creators:
Manea, V.1, Author
Atanasov, Dinko2, Author              
Beck, D.3, Author
Blaum, Klaus2, Author              
Borgmann, Christopher2, Author              
Cakirli, R. Burcu2, Author              
Eronen, Tommi2, Author              
George, Sebastian2, Author              
Herfurth, F.3, Author
Herlert, A.4, Author
Kowalska, M.5, Author
Kreim, Susanne2, 5, Author              
Litvinov, Yu.A.3, Author
Lunney, D.1, Author
Neidherr, D.3, Author
Rosenbusch, M.6, Author
Schweikhard, L.6, Author
Wienholtz, F.6, Author
Wolf, R. N.6, Author
Zuber, K.7, Author
Affiliations:
1CSNSM-IN2P3-CNRS, Université Paris-Sud, 91406 Orsay, France, ou_persistent22              
2Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              
3GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany, ou_persistent22              
4FAIR GmbH, 64291 Darmstadt, Germany, ou_persistent22              
5CERN, 1211 Geneva, Switzerland, ou_persistent22              
6Ernst-Moritz-Arndt-Universität, Institut für Physik, 17487 Greifswald, Germany, ou_persistent22              
7Technische Universität Dresden, 01069 Dresden, Germany, ou_persistent22              

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 Abstract: The mass surface in the A ∼ 100 region of the nuclear chart is extended by the measurement of the 98–100Rb isotopes with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN. The mass of 100Rb is determined for the first time. The studied nuclides mark the known low-Z frontier of the shape transition at N=60. To describe the shape evolution towards the krypton isotopic chain, a theoretical analysis is presented in the framework of the Hartree-Fock-Bogoliubov approach. The importance of the pairing interaction for describing the extent and strength of the region of quadrupole deformation is emphasized. A later transition to large prolate deformation or, alternatively, the predominance of oblate deformation is proposed as explanation for the different behavior of the krypton isotopes. Octupole collectivity is explored as a possible mechanism for the evolution of two-neutron separation energies around N=56.

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Language(s): eng - English
 Dates: 2013-11-25
 Publication Status: Published in print
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevC.88.054322
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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: 054322 Start / End Page: 1 - 10 Identifier: ISSN: 0556-2813
CoNE: https://pure.mpg.de/cone/journals/resource/954925225009