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High-statistics measurement of the \(\beta\)-delayed \(\alpha\) spectrum of 20Na

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Abstract.

A measurement of the 20Na \( \beta\)-delayed alpha spectrum with a high-granularity setup has allowed the decay scheme to be revised on several points. Three new transitions of low intensity are found at low \( \alpha\) -particle energy. An R-matrix fit of the complete spectrum gives an improved description of the decay and indicates feeding to the broad 2+ \( \alpha\)-cluster state close to 9MeV.

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Author notes

  1. O. S. Kirsebom

    Present address: TRIUMF, Vancouver BC, V6T 2A3, Canada

  2. M. Madurga

    Present address: Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, 37996, USA

Authors and Affiliations

  1. Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark

    K. L. Laursen, O. S. Kirsebom, H. O. U. Fynbo & K. Riisager

  2. Department of Physics, University of Jyväskylä, FIN-40351, Jyväskylä, Finland

    A. Jokinen, A. Saastamoinen & J. Äystö

  3. Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006, Madrid, Spain

    M. Madurga & O. Tengblad

Authors
  1. K. L. Laursen
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  2. O. S. Kirsebom
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  3. H. O. U. Fynbo
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  4. A. Jokinen
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  5. M. Madurga
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  6. K. Riisager
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  7. A. Saastamoinen
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  8. O. Tengblad
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  9. J. Äystö
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Corresponding author

Correspondence to K. L. Laursen.

Additional information

Communicated by B.R. Fulton

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Laursen, K.L., Kirsebom, O.S., Fynbo, H.O.U. et al. High-statistics measurement of the \(\beta\)-delayed \(\alpha\) spectrum of 20Na . Eur. Phys. J. A 49, 79 (2013). https://doi.org/10.1140/epja/i2013-13079-6

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  • DOI: https://doi.org/10.1140/epja/i2013-13079-6

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