Search for highly deformed shape isomers in Si-28, Mg-24 and Ne-20 linked by successive alpha decays

G R Kelly, N M Clarke, M Freer, B R Fulton, S J Hoad, R A Le Marechal, R P Ward

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Measurements of the C-12(O-16,Ne-20 alpha)alpha, C-12(O-16,alpha alpha)Ne-20, C-12(O-16,Be-8)Ne-20 and C-12(O-16, O-16 alpha)Be-8 reactions have been performed at E-c.m. = 27.0 MeV. For decays proceeding through resonant states in the intermediate Mg-24 nucleus, angular correlation measurements have enabled spin assignments to be made and the dominant entrance channel angular momentum to be determined. The results are inconsistent with recent similar experiments which were interpreted as arising from successive alpha-decays from deformed shape isomeric states in Si-28 and Mg-24. (C) 1998 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)62-80
Number of pages19
JournalNuclear Physics A
Issue number1
Publication statusPublished - 5 Jan 1998

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