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Complete structure determination of the astrophysically important nucleus Na below the proton threshold

Research output: Contribution to journalArticle

  • D. Seweryniak
  • B. Blank
  • M.P. Carpenter
  • S.J. Freeman
  • A. Heinz
  • R.V.F. Janssens
  • T.L. Khoo
  • G. Mukherjee
  • E. Rehm
  • J. Shergur
  • S. Sinha
  • P.J. Woods
  • T. Davinson
  • H. Mahmud
  • Z. Liu
  • F. Sarazin
  • J. Görres
  • M. Shawcross
  • A. Woehr

Related Edinburgh Organisations

Original languageEnglish
Pages (from-to)170-175
Number of pages6
JournalPhysics Letters B
Issue number3-4
Publication statusPublished - 24 Jun 2004


The fusion-evaporation reaction B(C,2n) was used to make the first observation of in-beam γ decays from the astrophysically important nucleus Na, lying adjacent to the proton drip-line. All states below the proton threshold in Na were populated and identified in the experiment. These include new levels, previously unresolved levels, and states located with improved energy precision. The level structure of Na, and its γ transitions, are compared to the mirror partner F measured simultaneously in this experiment. In particular, a high degree of energy stability is found for all negative parity states. These results are discussed in the context of the nuclear shell model.

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