8Be  + 8Be  and 12C  + α breakup states in 16O populated via the 13C (4He ,4α)n reaction

Neil Curtis, S. Almaraz-Calderon, A. Aprahamian, N. I. Ashwood, M. Barr, B. Bucher, P. Copp, M. Couder, X. Fang, M. Freer, G. Goldring, F. Jung, S. R. Lesher, W. Lu, J. D. Malcolm, A. Roberts, W. P. Tan, C. Wheldon, V. A. Ziman

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Abstract

The C13(He4,4α)n breakup reaction has been studied at beam energies of 27.0, 27.5, and 28.0 MeV. A comparison with previous measurements of the C12(He4,Be8)Be8 excitation function and C12(O16,4α)C12 breakup channel suggests the Begs8+Begs8 decay of O16 is observed from a possible 2+ state at 17.3±0.2 MeV, a 4+ state at 18.0±0.2 MeV, a 2+ or 4+ state at 19.4±0.2 MeV, and a 4+ or 6+ state at 21.0±0.2 MeV. The 2+ or 4+ assignment for the (19.4±0.2)-MeV state appears to be supported by the relative cross sections expected for resonant and sequential breakup reactions.

Original languageEnglish
Article number034313
JournalPhysical Review C
Volume94
Issue number3
Early online date13 Sep 2016
DOIs
Publication statusPublished - 13 Sep 2016

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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