Probing shell structure in neutron-rich nuclei with in-beam -spectroscopyF. Azaiez1, M. Belleguic1, D. Sohler2, M. Stanoiu3, Zs. Dombrádi2, O. Sorlin1, J. Timár2, F. Amorini1, D. Baiborodin4, A. Bauchet5, F. Becker6, C. Borcea7, C. Bourgeois1, Z. Dlouhy8, C. Donzaud1, J. Duprat1, D. Guillemaud-Mueller1, F. Ibrahim1, M.J. Lopez3, R. Lucas9, S.M. Lukyanov4, V. Maslov4, J. Mrazek8, C. Moore10, F. Nowacki11, B.M. Nyakó2, Yu.-E. Penionzhkevich4, M.G. Saint-Laurent3, F. Sarazin3, J.A. Scarpaci1, G. Sletten12, C. Stodel3, M. Taylor10, C. Theisen6 and G. Voltolini3
1 IPN, IN2P3-CNRS, Orsay, France
2 Institute of Nuclear Research, H-4001 Debrecen, Pf. 51, Hungary
3 GANIL, Caen, France
4 FLNR, JINR, Dubna, Russia
5 CSNSM, IN2P3-CNRS, Orsay, France
6 CEA-Saclay, Gif-sur-Yvette, France
7 IAP, Bucharest-Magurele, Romania
8 NPI, Rez, Czech Republic
9 IPN, Lyon, France
10 OLL, University of Liverpool, Liverpool, UK
11 University L. Pasteur, Strasbourg, France
12 NBI, Copenhagen, Denmark
(Received: 21 March 2002 / Published online: 31 October 2002)
The structure of neutron-rich light nuclei around N=20 and 28 has been investigated at GANIL by means of in-beam gamma-spectroscopy using fragmentation reactions of 36S and 48Ca beams on a Be target. Gamma-decay of relatively high-lying excited states have been measured for the first time in nuclei around 32Mg and 44S. Level schemes are proposed and discussed for a large number of these neutron-rich nuclei around N=20 and N=28.
23.20.Lv - Gamma transitions and level energies.
23.20.En - Angular distribution and correlation measurements.
25.70.Mn - Projectile and target fragmentation.
27.30.+t - .
© Società Italiana di Fisica, Springer-Verlag 2002