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Collective motion of fermions and boson expansion (I)
Affiliation:1. National Nuclear Data Center, Brookhaven National Laboratory, Upton, NY 11973-5000, USA;2. Department of Physics & Astronomy, McMaster University, Hamilton, Ontario, L8S 4M1, Canada;3. Nuclear Data Section, International Atomic Energy Agency, Vienna International Centre, P.O. Box 100, A-1400 Vienna, Austria;1. Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, 80805 München, Germany;2. Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany;1. Faculty of Natural Sciences and Mathematics, University of Montenegro, Cetinjski put, bb., 81000 Podgorica, Montenegro;2. Faculty of Technical Engineering, University of Bihać, Ljubijankićeva, bb., 77000 Bihać, Bosnia and Herzegovina
Abstract:A new method is proposed to derive a collective boson Hamilton operator in an equation of motion approach starting from a microscopic shell-model hamiltonian with effective residual interactions. The method is used to describe pairing vibrations in spherical open shell nuclei in terms of interacting bosons. The results are in fair agreement with experimental data.
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