- Petri, M;
- Fallon, P;
- Macchiavelli, AO;
- Heil, S;
- Rodriguez-Vieitez, E;
- Bazin, D;
- Campbell, CM;
- Clark, RM;
- Cromaz, M;
- Gade, A;
- Glasmacher, T;
- Lee, IY;
- Malbrunot-Ettenauer, S;
- Paschalis, S;
- Ratkiewicz, A;
- Terry, JR;
- Weisshaar, D;
- Wiedeking, M
The odd-odd nucleus 30Na is studied via a one-proton, one-proton-one-neutron and one-neutron removal reaction using an intermediate-energy 31Mg, 32Mg and 31Na radioactive ion beam, respectively. Combining high-resolution γ-ray spectroscopy with the selectivity of the three reaction mechanisms, we are able to distinguish multiple particle-hole configurations. Negative-parity states in 30Na are observed for the first time, providing an important measure of the excitation of the 1p1h/3p3h configuration and hence the sd-pf shell gap. The extracted band structures and level energies serve as invaluable input for the theoretical refinement of the effective interactions used in this region.