Portal de Periódicos da CAPES

Yrast structure of neutron-rich Ti 53

2005; American Institute of Physics; Volume: 72; Issue: 4 Linguagem: Inglês

10.1103/physrevc.72.044315

1538-4497

B. Fornal, S. Zhu, R. V. F. Janssens, Mareki Honma, R. Broda, B. A. Brown, M. P. Carpenter, S. J. Freeman, N. J. Hammond, F. G. Kondev, W. Królas, T. Lauritsen, S. N. Liddick, C. J. Lister, S. Lunardi, P. F. Mantica, N. Mărginean, T. Mizusaki, E. F. Moore, Tomohiro Otsuka, T. Pawłat, D. Seweryniak, B. E. Tomlin, C. A. Ur, I. Wiedenhöver, J. Wrzesiński,

Astronomical and nuclear sciences

γ rays from neutron-rich Ti nuclei in the vicinity of N=32 have been studied at Gammasphere using deep-inelastic reactions induced by Ca48 beams on thick Pb208 and U238 targets. The Ti53 yrast cascade was identified for the first time, and the location in energy of states with spin up to I = 21/2 was determined. The excitations of Ti53 provide new tests of effective interactions for full-pf-shell calculations. Comparisons between theory and experiment for the highest spin states in Ti53 favor the recently proposed GXPF1A interaction, which accounts for the appearance of a neutron subshell closure at N=32 in Ti isotopes as well as for the lack of a similar subshell closure at N=34, as predicted by earlier calculations with another interaction.Received 22 June 2005DOI:https://doi.org/10.1103/PhysRevC.72.044315©2005 American Physical Society