Tübingen 2003 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 37: Kernphysik/Spektroskopie V
HK 37.1: Group Report
Thursday, March 20, 2003, 13:30–14:00, A
Spectroscopy of heavy odd and odd-odd nuclei — •Ralf Hertenberger1, Yvonne Eisermann1, Hans-Friedrich Wirth1, Gerhard Graw1, Sandra Christen2, Oliver Möller2, Dimitar Tonev2, Petar Pejovic2, Jan Jolie2, Jose Barea3, Clara E. Alonso3, Pepe Arias3, and Alejandro Frank4 — 1Sektion Physik, LMU München — 2IKP, Universität zu Köln — 3FAMN, Universidad de Sevilla — 4Universidad Nacional Autonoma de Mexico
One of the challenges of the spectroscopy
of heavy nuclei is
to resolve
the low lying part of the dense
spectra
and to study
whether the nuclear structure is related to
symmetries resulting from
a restricted number of degrees of freedom.
Particularly interesting are nuclei
with a specific bosonic and fermionic structure
where dynamical symmetries may relate and predict
the spectra of even-even, even-odd,
odd-even and odd-odd nuclei.
In this way
supersymmetry successfully describes
a relevant part of the
spectra in the quartet of nuclei
194Pt, 195Au, 195Pt and 196Au.
Presently we extend our studies to the neighbouring region:
We measured with polarized beam at the Munich Q3D spectrograph
angular distributions of the transfer reactions
(d→,p) to 193Os, 194Ir and 197Pt
and (d→,α) to
194Ir, 196Au, 200Au and 202Au.
Excellent spectra with high counting statistics were obtained
with a new detector system and
with beam currents of up to 3 µA on target from the
Stern-Gerlach polarized ion source.
The determination of excitation energies, spins and parity is discussed,
the results are compared with model expectations.
Work supported by the DFG under C4-Gr894/2-3 and by MLL.