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Magnetic moment measurements in the semi-magic nuclei 94Ru and 95Rh after recoil implantation into iron and nickel

  • A. Jungclaus
  • D. Kast
  • K.P. Lieb
  • C. Lingk
  • C. Teich
  • O. Iordanov
  • T. Härtlein
  • D. Schwalm
  • I.P. Johnstone
  • R. Schwengner
Nuclear structure and reactions

Abstract:

The magnetic moments of the 12+ and 11 yrast states in 94Ru and of the 25/2, 29/2+, and 35/2+ levels in 95Rh have been measured via the IMPAD technique. The nuclei were produced in the reaction 58Ni +40Ca and recoil-implanted into polarized Ni and Fe hosts. The g-factors were deduced from the measured time-integral Larmor precessions. The comparison between the experimental results and large-scale shell model calculations suggests that the 12+ and 11 states in 94Ru and the 25/2 level in 95Rh are pure proton states whereas the 29/2+ and 35/2+ states in 95Rh contain a neutron excitation across the N=50 shell gap. This interpretation supports the conclusion drawn from recent lifetime measurements.

PACS: 21.10.Ky Electromagnetic moments – 21.60.Cs Shell models – 21.60.+j 90 < A < 149 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • A. Jungclaus
    • 1
  • D. Kast
    • 1
  • K.P. Lieb
    • 1
  • C. Lingk
    • 1
  • C. Teich
    • 1
  • O. Iordanov
    • 1
  • T. Härtlein
    • 2
  • D. Schwalm
    • 2
  • I.P. Johnstone
    • 3
  • R. Schwengner
    • 4
  1. 1.II. Physikalisches Institut, Universität Göttingen, Bunsenstrasse 7-9, D-37073 GöttingenDE
  2. 2.Max-Planck-Institut für Kernphysik, D-69029 Heidelberg, GermanyDE
  3. 3.Department of Physics, Queen's University, Kingston, Ontario, K7L 3N6 CanadaCA
  4. 4.Institut für Hadronenphysik, FZ Rossendorf, D-01314 Dresden, GermanyDE

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