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Mirror decay of 75Sr

  • J. Huikari
  • M. Oinonen
  • A. Algora
  • J. Cederkäll
  • S. Courtin
  • P. Dessagne
  • L. Fraile
  • S. Franchoo
  • H. Fynbo
  • W.X. Huang
  • A. Jokinen
  • A. Knipper
  • F. Marechal
  • C. Miehé
  • E. Nacher
  • K. Peräjärvi
  • E. Poirier
  • L. Weissman
  • J. Äystö
  • and the ISOLDE Collaboration

Abstract:

The β-decay of 75Sr to its mirror nucleus 75Rb was studied at the ISOLDE PSB facility at CERN by means of β-delayed γ and proton spectroscopy. The decay Q-value and β-delayed γ intensity were measured for the first time. These results, 10.60±0.22 MeV and 4.5+1.9-0.7%, together with accurate measurements of the β-decay half-life and β-delayed proton branching ratio yielded the Gamow-Teller strength 0.35±0.05 for the mirror transition. Implications of the results on studies of deformation effects and on the path of the rapid proton capture process are discussed.

PACS. 23.40.Hc Relation with nuclear matrix elements and nuclear structure – 21.10.Tg Lifetimes – 23.50.+z Decay by proton emission – 27.50.+e 59 ⩽ A ⩽ 89 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2003

Authors and Affiliations

  • J. Huikari
    • 1
  • M. Oinonen
    • 2
  • A. Algora
    • 4
  • J. Cederkäll
    • 3
  • S. Courtin
    • 5
  • P. Dessagne
    • 5
  • L. Fraile
    • 3
  • S. Franchoo
    • 3
  • H. Fynbo
    • 3
  • W.X. Huang
    • 1
  • A. Jokinen
    • 1
  • A. Knipper
    • 5
  • F. Marechal
    • 5
  • C. Miehé
    • 5
  • E. Nacher
    • 4
  • K. Peräjärvi
    • 3
  • E. Poirier
    • 5
  • L. Weissman
    • 3
  • J. Äystö
    • 1
  • and the ISOLDE Collaboration
  1. 1.Department of Physics, University of Jyväskylä, P.O. Box 35, FIN-40351, Jyväskylä, FinlandFI
  2. 2.Helsinki Institute of Physics, FIN-00014 University of Helsinki, FinlandFI
  3. 3.CERN, CH-1211 Geneva 23, SwitzerlandCH
  4. 4.Instituto de Fısica Corpuscular, CSIC - University of Valencia, E-46071 Valencia, SpainES
  5. 5.Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, FranceFR

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