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Super-allowed beta decay of nuclei at the drip-line

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

We have investigated the continuous particle spectra following the beta decay of the neutron-rich nuclei that terminate the mass 6, 8, 9 and 11 isobaric chains. Strong beta transitions feeding the very top of the spectrum are found systematically. The favoured states are within a few MeV of the energy of the initial state. This phenomenon seems to be linked to the occurrence of a di-neutron structure or neutron halo in the drip-line nuclei.

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Authors and Affiliations

  1. Instituto de Quimica-Fisica “Rocasolano”, Madrid, Spain

    M. J. G. Borge

  2. Institute of Physics, University of Aarhus, Aarhus, Denmark

    P. G. Hansen, L. Johannsen & K. Riisager

  3. Institut für Kernphysik, Technische Hochschule, Darmstadt, Germany

    L. Johannsen & A. Richter

  4. Department of Physics, Chalmers University of Technology, Göteborg, Sweden

    B. Jonson, T. Nilsson, G. Nyman & K. Wilhelmsen

  5. PPE-Division, CERN, Genève, Switzerland

    O. Tengblad

Authors
  1. M. J. G. Borge
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  2. P. G. Hansen
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  3. L. Johannsen
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  4. B. Jonson
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  5. T. Nilsson
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  6. G. Nyman
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  7. A. Richter
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  8. K. Riisager
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  9. O. Tengblad
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  10. K. Wilhelmsen
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ISOLDE Collaboration

Additional information

Dedicated to Prof. Dr. P. Kienle on the occasion of his 60th birthday

Supported by the German Minister for Research and Technology (BMFT) under the contract number 06DA184I

The authors are indebted to Professor Alfredo Poves for interesting discussions.

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Borge, M.J.G., Hansen, P.G., Johannsen, L. et al. Super-allowed beta decay of nuclei at the drip-line. Z. Physik A - Hadrons and Nuclei 340, 255–261 (1991). https://doi.org/10.1007/BF01294673

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  • DOI: https://doi.org/10.1007/BF01294673

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