The β-decay approach for studying 12C
- Fynbo, H. O U
- Diget, C. Aa
- Hyldegaard, S.
- Jeppesen, H. B.
- Knudsen, H. H.
- Kirsebom, O.
- Riisager, K.
- Alcorta, M.
- Boutami, R.
- Borge, M. J G
- Madurga, M.
- Tengblad, O.
- Brandenburg, S.
- Dendooven, P.
- Jungmann, K.
- Onderwater, C.J.G.
- Rogachevskly, A.
- Sohani, M.
- Traykov, E.
- Wilschut, H. W.
- Büscher, J.
- Van Duppen, P.
- Huyse, M.
- Raabe, R.
- Eronen, T.
- Huikary, J.
- Jokinen, A.
- Kankainen, A.
- Perajärvi, K.
- Moore, I.
- Nieminen, A.
- Penttilä, H.
- Rinta-Antila, S.
- Saastamoinen, A.
- Wang, Y.
- Äystö, J.
- Jonson, B.
- Nilsson, T.
- Nyman, G.
- Wilhelmsen, K.
- Fulton, B.
- Fox, S.
- Barker, F. C.
DOIAbstract
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 pres...
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