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Spectroscopy of 13B, 14B, 15B and 16B using multi-nucleon transfer reactions

  • Nuclear structure and reactions
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Abstract:

New information has been obtained on excited states of the neutron-rich boron isotopes 14B, 15B and 16B, using the reactions 12C(14C,12N)14B, 13C(14C,12N)15B and 14C(14C,12N)16B at about 24 MeV/A. The mass excess of 16B has been measured for the first time, it is 37.08(6) MeV. This means that 16B is unbound by only 0.04(6) MeV. Furthermore, the nucleus 13B has been investigated with the four reactions 16O(14C,17F), 12C(14C,13N), 12C(13C,12N) and 12C(15N,14O). Choosing different target-projectile combinations, it was possible to populate states with different selectivity. New states are observed in 13B at excitation energies above the threshold for two-neutron decay.

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Authors and Affiliations

  1. Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscow region, Russia, , , , , , RU

    R. Kalpakchieva

  2. Hahn-Meitner Institut GmbH, Glienicker Strasse 100, 14109 Berlin, Germany, , , , , , DE

    H.G. Bohlen, W. von Oertzen, B. Gebauer, M. von Lucke-Petsch, Th. Stolla, M. Wilpert & Th. Wilpert

  3. Department of Physics and Astronomy, Ohio University, Athens, OH 45701-2979, USA, , , , , , US

    T.N. Massey

  4. Department of Physics and Astronomy, The University of Edinburgh, Edinburgh, EH9 3J2, UK, , , , , , GB

    A.N. Ostrowski

Authors
  1. R. Kalpakchieva
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  2. H.G. Bohlen
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  3. W. von Oertzen
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  4. B. Gebauer
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  5. M. von Lucke-Petsch
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  6. T.N. Massey
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  7. A.N. Ostrowski
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  8. Th. Stolla
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  9. M. Wilpert
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  10. Th. Wilpert
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Additional information

Received: 27 December 1999 / Revised version: 11 February 2000

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Kalpakchieva, R., Bohlen, H., von Oertzen, W. et al. Spectroscopy of 13B, 14B, 15B and 16B using multi-nucleon transfer reactions . EPJ A 7, 451–461 (2000). https://doi.org/10.1007/PL00013641

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  • DOI: https://doi.org/10.1007/PL00013641

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