Köln 2004 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 10: Poster Session: Nuclear Structure/Spectroscopy

HK 10.23: Poster

Dienstag, 9. März 2004, 13:30–15:30, Foyer

Nuclear Structure of ¹⁹³Os: Transfer Experiment and IBM-related Model — •Y. Eisermann¹, R. Hertenberger¹, H-F. Wirth¹, G. Graw¹, S. Christen², O. Möller², J. Jolie², J. Barea³, C. E. Alonso⁴, and P. Arias⁴ — ¹Sektion Physik, LMU München — ²IKP, Universität zu Köln — ³Universidad Nacional Autonoma de Mexico — ⁴FAMN, Universidad de Sevilla

¹⁹³Os is the heaviest Osmium isotop accessible by one neutron transfer reaction. Data from (d^→,p) experiments with high resolution at the Munich Q3D spectrograph provide new information on the nuclear structure of this odd-even nucleus. Our Atomic beam source with cesium charge exchange produces a polarized beam which hits the target of highly enriched ¹⁹²Os. Spin, parity and spectroscopic factors of levels with excitation energies up to 1.7MeV are deduced from the angular distributions of the (d^→,p) reaction. We compare the lower lying negative parity states with IBFM-2 and SUSY model calculations.
The level scheme given by a SUSY approach approximately resembles the experimental data. The IBFM-2 calculation reproduces the lower lying nuclear excited states quite well. The work was supported by the DFG (C4-Gr894/2-3) and MLL.