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

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

Research output: Contribution to journalArticlepeer-review

Abstract

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.
Original languageEnglish
Pages (from-to)170-175
Number of pages6
JournalPhysics Letters B
Volume590
Issue number3-4
DOIs
Publication statusPublished - 24 Jun 2004

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