Discovery of the shape coexisting 0$^{+}$ state in $^{32}$Mg by a two neutron transfer reaction
- Wimmer, K.
- Kroll, T.
- Krucken, R.
- Bildstein, V.
- Gernhauser, R.
- Bastin, B.
- Bree, N.
- Diriken, J.
- Van Duppen, P.
- Huyse, M.
- Patronis, N.
- Vermaelen, P.
- Voulot, D.
- Van de Walle, J.
- Wenander, F.
- Fraile, L.M.
- Chapman, R.
- Hadinia, B.
- Orlandi, R.
- Smith, J.F.
- Lutter, R.
- Thirolf, P.G.
- Labiche, M.
- Blazhev, A.
- Kalkuhler, M.
- Reiter, P.
- Seidlitz, M.
- Warr, N.
- Macchiavelli, A.O.
- Jeppesen, H.B.
- Fiori, E.
- Georgiev, G.
- Schrieder, G.
- Das Gupta, S.
- Lo Bianco, G.
- Nardelli, S.
- Butterworth, J.
- Johansen, J.
- Riisager, K.
DOIAbstract
The Island of Inversion nucleus $^{32}$Mg has been studied by a (t,p) two neutron transfer reaction in inverse kinematics at REX-ISOLDE. The shape coexistent excited 0$^{+}$ state in $^{32}$Mg has been identified by the characteristic angular distribution of the protons of the $\Delta$L = 0 transfer. The excitation energy of 1058 keV is much lower than predicted by any theoretical model. The low $\gamma$-ray intensity observed for the decay of this 0$^{+}$ state indicates a lifetime of more than 10 ns. Deduced spectroscopic amplitudes are compared with occupation numbers from shell model calculations.The Island of Inversion nucleus 32Mg has been studied by a (t,p) two neutron transfer reaction in inverse kinematics at REX-ISOLDE. The shape ...
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