Abstract
The nuclear level structure and electromagnetic properties of196Pt were investigated withγ-spectroscopic techniques using multiple Coulomb excitation by208Pb projectiles. Particle-γ, and particle-γ-γ coincidences were measured over a wide range of scattering angles.E2-transition moments and static quadrupole moments have been determined by a comparison of experimental scattering-angle dependentγ yields with calculated yields in a largely model-independent procedure. The results are compared with different theoretical models: the Asymmetric-Rotor Model, the Generalized Collective Model, and the Interacting Boson Model. The best agreement is obtained with the Generalized Collective Model representing a triaxial nucleus which is soft in theγ degree of freedom.
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The authors appreciate the support by H. Folger of the target laboratory of the GSI for preparing the sandwich targets. Thanks are also due to the operating staff of the UNILAC for supplying the heavy-ion beam. This work was supported by the Bundesministerium für Forschung und Technologie of the Federal Republic of Germany.