The European Physical Journal Special Topics

, Volume 150, Issue 1, pp 149–153 | Cite as

The “island of inversion" from a nuclear moments perspective and the g factor of 35Si

  • G. Neyens
  • P. Himpe
  • D. L. Balabanski
  • P. Morel
  • L. Perrot
  • M. De Rydt
  • I. Stefan
  • C. Stodel
  • J. C. Thomas
  • N. Vermeulen
  • D. T. Yordanov
Article

Abstract.

This paper reviews recent results from electromagnetic moment measurements on isotopes in the island of inversion around N=20. The obtained moments on neutron rich Na, Mg, Al and Si isotopes allow to draw conclusions on the amount of intruder components in their ground state wave function, demonstrating a gradual transition from the normal sd-shell region into the island of inversion, starting at N=18 for Na, N=19 for Mg and N=20 for Al isotopes. A measurement of the ground state g factor of 35Si (N=21), using a polarized fragment beam at GANIL, is discussed in more detail. The magnetic moment μ(35Si, Iπ= 7/2-) = (-)1.638(4) μN is consistent with a normal ground state structure, dominated by a νf7/2 neutron.

PACS.

21.10.Ky – 23.20.En – 27.30.+t – 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • G. Neyens
    • 1
  • P. Himpe
    • 1
  • D. L. Balabanski
    • 2
  • P. Morel
    • 3
  • L. Perrot
    • 4
  • M. De Rydt
    • 1
  • I. Stefan
    • 4
  • C. Stodel
    • 4
  • J. C. Thomas
    • 4
  • N. Vermeulen
    • 1
  • D. T. Yordanov
    • 1
  1. 1.Katholieke Universiteit LeuvenLeuvenBelgium
  2. 2.Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of SciencesSofiaBulgaria
  3. 3.CEA/DIF/DPTA/PNBruyères-le-ChâtelFrance
  4. 4.GANIL, BP. 55027Caen Cedex 5France

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