The β-decay approach for studying 12C

H. O U Fynbo*, C. Aa Diget, S. Hyldegaard, H. B. Jeppesen, H. H. Knudsen, O. Kirsebom, K. Riisager, M. Alcorta, R. Boutami, M. J G Borge, M. Madurga, O. Tengblad, S. Brandenburg, P. Dendooven, K. Jungmann, C.J.G. Onderwater, A. Rogachevskly, M. Sohani, E. Traykov, H. W. WilschutJ. Büscher, P. Van Duppen, M. Huyse, R. Raabe, T. Eronen, J. Huikary, A. Jokinen, A. Kankainen, K. Perajärvi, I. Moore, A. Nieminen, H. Penttilä, S. Rinta-Antila, A. Saastamoinen, Y. Wang, J. Äystö, B. Jonson, T. Nilsson, G. Nyman, K. Wilhelmsen, B. Fulton, S. Fox, F. C. Barker

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The β-decays of the mirror nuclei 12B and 12N both populate states in 12C and they are therefore a precious source of information about this nucleus. Due to the selection rules of β-decay only 0+, 1+ and 2+ states are populated. This allows a very clean study of unbound states just above the 3α-threshold with those spin and parities. This probe has been applied in two experiments using two complementary experimental techniques: in the first the three α-particles emitted after β-decay are measured in coincidence in separate detectors using the ISOL method, while in the second method 12B and 12N are implanted in a detector and the summed energy of the three α-particles is measured directly. Preliminary results from the two approaches are presented.
Original languageEnglish
JournalJournal of Physics: Conference Series
Volume111
Issue number1
DOIs
Publication statusPublished - 1 May 2008
Externally publishedYes

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