Münster 2002 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 10: Poster Session: Nuclear Physics/Spectroscopy

HK 10.31: Poster

Dienstag, 12. März 2002, 10:30–12:45, Foyer Chemie

Spectroscopy of ¹⁹³Os, ¹⁹⁴Ir and ¹⁹⁶Pt — •Hans-Friedrich Wirth¹, Yvonne Eisermann¹, Ralf Hertenberger¹, Gerhard Graw¹, Sandra Christen², Oliver Möller², Dimitar Tonev², and Jan Jolie² — ¹Sektion Physik, LMU München — ²IKP, Universität zu Köln

One of the challenges of nuclear spectroscopy is to what an extend the complex spectra of heavy nuclei result from a restricted number of relevant degrees of freedom. Especially interesting are nuclei where because of an assumed specific bosonic and fermionic structure supersymmetry as a dynamical symmetry may relate the spectra of even-even, even-odd, odd-even and odd-odd nuclei, as observed for ¹⁹⁴Pt, ¹⁹⁵Au, ¹⁹⁵Pt and ¹⁹⁶Au at low excitation energies, see A. Metz et al., Phys. Rev. Lett. 83, 1542 (1999) and Phys. Rev. C61, 064313 (2000) and J. Groeger et al., Phys. Rev. C62, 064304 (2000). To confirm part of the tentative assignments made for ¹⁹⁶Au and to study nearby nuclei, we measured at the Munich Q3D spectrograph (d^→,α) to ¹⁹⁶Au and ¹⁹⁴Ir and (d^→,p) to ¹⁹³Os. A new Stern-Gerlach polarised source provided 2 Mikroamp. beam on target, and with a new detector system we obtain at high countrates excellent resolution in this very dense spectra and thus unique determination of excitation energies, spin and parity. Results and experimental techniques will be discussed.

Work supported in part by the DFG under C4-Gr894/2-3.