Excited states ofF. Cappuzzello1, S. E. A. Orrigo1, 2, A. Cunsolo1, 2, H. Lenske3, M. C. Allia1, 2, D. Beaumel4, S. Fortier4, A. Foti2, 5, A. Lazzaro1, 2, C. Nociforo1 and J. S. Winfield1
1 INFN, Laboratori Nazionali del Sud - Via S. Sofia 62, 95123 Catania, Italy
2 Dipartimento di Fisica e Astronomia, Università di Catania Via S. Sofia 64, 95123 Catania, Italy
3 Institut für Theoretische Physik, Universität Giessen Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
4 Institut de Physique Nucléaire, IN2P3-CNRS - 91406 Orsay Cedex, France
5 INFN, Sezione di Catania - Corso Italia 57, 95129 Catania, Italy
(Received 27 November 2003; accepted 5 January 2004)
The reaction at 55 incident energy was studied at forward angles in order to explore the excitation energy spectrum. The ground state and the states at , 6.77, 7.30, 8.50 excitation energies were populated. The energy resolution ( ) allowed the identification of these transitions each for ground and first-excited state at . QRPA calculations reproduce the level structure below 1.5 excitation energy. The strength observed at higher excitation energies probably arises from core-excited components of .
21.10.-k - Properties of nuclei; nuclear energy levels.
25.70.Kk - Charge-exchange reactions.
27.20.+n - Properties of specific nuclei listed by mass ranges: .
© EDP Sciences 2004