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HK: Physik der Hadronen und Kerne

HK 2: Kernphysik/Spektroskopie I

HK 2.8: Vortrag

Montag, 17. März 2003, 18:00–18:15, A

Cluster properties of heavy nuclei with the dinuclear system concept — •T.M. Shneidman¹, G.G. Adamian^2,3, N.V. Antonenko², R.V. Jolos², and W. Scheid¹ — ¹Institut für Theoretische Physik der Justus-Liebig-Universität, D-35392, Giessen, Germany — ²Joint Institute for Nuclear Research, 141980, Dubna, Russia — ³Institute of Nuclear Physics, 702132, Tashkent , Uzbekistan

The properties of the states of alternating parity bands and the low-lying excited 0⁺-states in actinides, Ba, Ce, Nd, Sm, Gd and Dy isotopes are analyzed within the dinuclear cluster model. This model assumes cluster type shapes which are produced by collective motion of the nuclear system in the mass asymmetry coordinate. The calculated spin dependences of the energies and of the electric multipole transition moments are in agreement with the experimental data. Based on these results the spin dependence of spectroscopic factors for ²²⁶Ra is calculated and compared with available experimental information. Also superdeformed states of ¹⁹⁴Hg are investigated with this model.