Köln 2004 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
HK: Physik der Hadronen und Kerne
HK 42: Nuclear and Particle Astrophysics III
HK 42.7: Vortrag
Donnerstag, 11. März 2004, 15:30–15:45, F
Octupole correlations in the N 88 region — •M. Babilon1,2, N. V. Zamfir1, R. F. Casten1, E. A. Ricard-McCutchan1, D. Kusnezov1, W. Bayer2, D. Galaviz2, and A. Zilges2 — 1Yale University — 2Technische Universitaet Darmstadt
An extensive study of the negative parity states in the even-even nuclei in the Z 56-64, N 88 region was performed in the framework of the Interacting Boson Approximation (IBA) model. This region was predicted to present strong octupole correlations and, by incorporating the p and f bosons in the usual IBA-sd model, the character of the octupole excitations was studied. The predictions for the negative parity states were extensively compared with the existing data. More experimental information is needed to understand the octupole collectivity in these nuclei. To obtain such information negative parity states in 152Gd were populated via β-decay and studied via off-beam coincidence γ-ray spectroscopy at the Moving Tape Collector of the Wright Nuclear Structure Lab (Yale University). A comparison between the experimental results and spdf-IBA calculations will be given. This work was supported by the U.S. DOE Grant No. DE-FG02-91ER-40609.