Author(s)

Olli Lahde

Abstract

The extension of Extended Phonon Projection Model [1] is so the called Multi- Band-Phonon-Prqjection-Model. This model includes two-intrinsic-phonon excited bands. The model is a so called geometric collective model which is a phenomenological model for the description of the low-energy collective properties of even-even nuclei. In all collective models the most important collective degrees of freedom are the quadrupole and octupole vibrations and rotations of statically deformed nuclear shapes. The physical picture behind the model is that these nuclei behave like incompressible liquid drops, especially for higher mass number. Thus, the model neglects single particle properties and determines the physical properties of the nucleus by its shape. From this point of view it is clear that the excitations of the nucleus within this model are vibrations a

Keywords