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The β+-electron capture decay of 73Kr

  • Ch. Miehé
  • Ph. Dessagne
  • Ch. Pujol
  • G. Walter
  • B. Jonson
  • M. Lindroos
  • and the ISOLDE Collaboration
Nuclear structure and reactions

Abstract:

The β+– electron capture decay of 73Kr, produced at the ISOLDE CERN facility, has been studied by β-delayed proton and gamma emission. The established decay scheme involves 15 up to now unreported gamma emitting levels in 73Br. The total proton branching ratio has been measured to be 0.0025 ± 0.0003. From this work, a spin and parity 3/2 is assigned to the 73Kr ground state, on the basis of the allowed β branch to the 73Br Jπ= 1/2 ground state and the feeding of the 5/2+ level located at 286 keV in 73Br.

PACS: 21.10.Hw Spin, parity, and isobaric spin – 23.20.Lv Gamma transitions and level energies – 23.40.Hc Relation with nuclear matrix elements and nuclear structure – 27.50.+e 59 ≤ A ≤ 89 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Ch. Miehé
    • 1
  • Ph. Dessagne
    • 1
  • Ch. Pujol
    • 1
  • G. Walter
    • 1
  • B. Jonson
    • 2
  • M. Lindroos
    • 3
  • and the ISOLDE Collaboration
  1. 1.Institut de Recherches Subatomiques, UMR7500, CNRS-IN2P3 et Université Louis Pasteur, BP28, F-67037 Strasbourg Cedex 2, FranceFR
  2. 2.Chalmers University of Technology, Göteborg, SwedenSE
  3. 3.CERN, CH-1211 Geneva, SwitzerlandCH

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