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HK: Hadronen und Kerne
HK 56: Postersitzung
HK 56.3: Poster
Wednesday, March 18, 1998, 17:00–19:00, Foyer
High resolution (d→,t) study of 196Au and a test of the IBM supersymmetry — •A. Metz1, A. Gollwitzer1, R. Hertenberger1, B.D. Valnion1, P. Schiemenz1, G. Graw1, J. Jolie2, N. Warr2, C. Güther3, and J. Gröger3 — 1Sektion Physik der Universität München, D-85748 Garching — 2Physics Department, University, CH-1700 Fribourg — 3Institut für Strahlen und Kernphysik, D-53115 Bonn
The interacting boson model (IBM) proposed by Arima and Iachello
allows for simultaneous description of
even and odd mass nuclei. Spectroscopic properties of a
quartet of nuclei, an even-even, even-odd, odd-even and
an odd-odd one, are correlated.
One quartet of interest is 194Pt, 195Pt,
195Au and 196Au described in the O(6) limit
by the group Uν(6/12) ⊗ Uπ(6/4).
197Au(d→,t)196Au reaction was studied using a
25MeV polarized deuteron beam from the Munich MP tandem accelerator.
To the observed neutron transfer the orbits
3p1/2, 3p3/2, 2f5/2, 2f7/2 or 1i13/2
may contribute depending on spin, parity and structure of the
excited state. Because of the ground state spin 3/2+ of 197Au
up to four different values of j transfer can add incoherently
to the differential cross sections.
Restricting the analysis to the orbits listed above
we expect either mixed contributions from l=1 and 3 transfer
or pure j=13/2 transfer.
The resulting spectroscopic factors have been compared with
IBM calculations of J. Jolie et al. (Phys. Rev. C 43 1991 R16).
(Work supported by DFG grants IIC4 Gr 894/2 and Gu 179/3-2.)