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Beta decay of 61Ga

  • M. Oinonen
  • P. Baumann
  • P. Dendooven
  • Y. Fujita
  • M. Górska
  • H. Grawe
  • Z. Hu
  • Z. Janas
  • A. Jokinen
  • R. Kirchner
  • O. Klepper
  • A. Knipper
  • W. Liu
  • H. Penttilä
  • A. Plochocki
  • M. Ramdhane
  • E. Roeckl
  • G. Walter
  • J. Äystö
Nuclear structure and reactions

Abstract:

The β decay of 61Ga to its mirror nucleus 61Zn has been measured for the first time by using on-line mass separation and β-delayed gamma-ray spectroscopy. The observed decay strength to the ground state implies superallowed character in accordance with the systematics of the mirror decays in the sd and fp shell. The β feedings observed to four excited states in 61Zn are consistent with earlier spin-parity assignments based on in-beam experiments. The ground-state spin and parity for 61Ga were determined to be 3/2.

PACS: 21.10.Hw Spin, parity, and isobaric spin – 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

  • M. Oinonen
    • 1
  • P. Baumann
    • 2
  • P. Dendooven
    • 1
  • Y. Fujita
    • 3
  • M. Górska
    • 4
  • H. Grawe
    • 4
  • Z. Hu
    • 4
  • Z. Janas
    • 5
  • A. Jokinen
    • 1
  • R. Kirchner
    • 4
  • O. Klepper
    • 4
  • A. Knipper
    • 2
  • W. Liu
    • 4
  • H. Penttilä
    • 1
  • A. Plochocki
    • 5
  • M. Ramdhane
    • 2
  • E. Roeckl
    • 4
  • G. Walter
    • 2
  • J. Äystö
    • 1
  1. 1.Department of Physics, University of Jyväskylä, P.O. Box 35, FIN-40351, Jyväskylä, FinlandFI
  2. 2.Institut de Recherches Subatomiques, F-67037 Strasbourg, FranceFR
  3. 3.Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, JapanJP
  4. 4.Gesellschaft für Schwerionenforschung, Postfach 110552, D-64220 Darmstadt, GermanyDE
  5. 5.Institute of Experimental Physics, Warsaw University, PL-00681 Warsaw, PolandPL

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