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Decay of the neutron-rich isotope 113Ru to 113Rh

  • J. Kurpeta
  • G. Lhersonneau
  • A. Płochocki
  • J.C. Wang
  • P. Dendooven
  • A. Honkanen
  • M. Huhta
  • M. Oinonen
  • H. Penttilä
  • K. Peräjärvi
  • J.R. Persson
  • J. Äystö

Abstract:

The decay of neutron-rich isotope 113Ru obtained as on-line mass separated product of proton-induced fission has been investigated by γγ coincidence and spectrum multiscaling measurements. Decay schemes for both low- and high-spin isomers of 113Ru have been constructed. The level scheme of 113Rh is considerably extended. Systematics of the lowest-lying rhodium levels is smooth. The picture of shape coexistence established for neutron-rich Rh isotopes near-neutron midshell is confirmed with the observation of a K = 1/2 deformed band, with its 3/2+ state at 600 keV being the lowest-lying level and of probable 7/2+ and 5/2+ band members. A large fraction of β feeding is found to populate high-lying levels in 113Rh. The GT strength in 113Rum decay is significantly larger than for the decay of 113Rug and of lighter rhodium isotopes.

PACS. 27.60.+j 90 ?A? 149 – 23.20.Lv Gamma transitions and level energies 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2002

Authors and Affiliations

  • J. Kurpeta
    • 1
  • G. Lhersonneau
    • 2
  • A. Płochocki
    • 1
  • J.C. Wang
    • 2
  • P. Dendooven
    • 2
  • A. Honkanen
    • 2
  • M. Huhta
    • 2
  • M. Oinonen
    • 2
  • H. Penttilä
    • 2
  • K. Peräjärvi
    • 2
  • J.R. Persson
    • 2
  • J. Äystö
    • 2
  1. 1.Institute of Experimental Physics, Warsaw University, ul. Hoża 69, 00-681 Warszawa, PolandPL
  2. 2.Department of Physics, University of Jyväskylä, P.O. Box. 35, FIN-40351, Jyväskylä, FinlandFI

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