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Mirror decay of 75Sr

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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.

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Authors and Affiliations

  1. Department of Physics, University of Jyväskylä, P.O. Box 35, FIN-40351, Jyväskylä, Finland, , , , , , FI

    J. Huikari, W.X. Huang, A. Jokinen & J. Äystö

  2. Helsinki Institute of Physics, FIN-00014 University of Helsinki, Finland, , , , , , FI

    M. Oinonen

  3. CERN, CH-1211 Geneva 23, Switzerland, , , , , , CH

    J. Cederkäll, L. Fraile, S. Franchoo, H. Fynbo, K. Peräjärvi & L. Weissman

  4. Instituto de Fısica Corpuscular, CSIC - University of Valencia, E-46071 Valencia, Spain, , , , , , ES

    A. Algora & E. Nacher

  5. Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, , , , , , FR

    S. Courtin, P. Dessagne, A. Knipper, F. Marechal, C. Miehé & E. Poirier

Authors
  1. J. Huikari
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  2. M. Oinonen
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  3. A. Algora
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  4. J. Cederkäll
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  5. S. Courtin
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  6. P. Dessagne
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  7. L. Fraile
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  8. S. Franchoo
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  9. H. Fynbo
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  10. W.X. Huang
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  11. A. Jokinen
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  12. A. Knipper
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  13. F. Marechal
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  14. C. Miehé
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  15. E. Nacher
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  16. K. Peräjärvi
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  17. E. Poirier
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  18. L. Weissman
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  19. J. Äystö
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and the ISOLDE Collaboration

Additional information

Received: 26 September 2002 / Accepted: 30 October 2002 / Published online: 18 February 2003

RID="a"

ID="a"e-mail: jussi.huikari@phys.jyu.lfi

Communicated by D. Schwalm

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Huikari, J., Oinonen, M., Algora, A. et al. Mirror decay of 75Sr. Eur Phys J A 16, 359–363 (2003). https://doi.org/10.1140/epja/i2002-10103-0

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  • DOI: https://doi.org/10.1140/epja/i2002-10103-0

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