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Please use this identifier to cite or link to this item: http://hdl.handle.net/11154/1703

Title: Phase transitions and critical points in the rare-earth region
Authors: Arias, JM
Barea, J
Frank, A
García-Ramos, JE
Issue Date: 2003
Abstract: A systematic study of isotope chains in the rare-earth region is presented. For chains Nd-144-154(60),Sm-146-160(62),Gd-148-162(64), and Dy-150-166(66), energy levels, E2 transition rates, and two-neutron separation energies are described by using the most general (up to two-body terms) interacting boson model (IBM) Hamiltonian. For each isotope chain a general fit is performed in such a way that all parameters but one are kept fixed, to describe the whole chain. In this region, nuclei evolve from spherical to deformed shapes and a method based on catastrophe theory, in combination with a coherent-state analysis to generate the IBM energy surfaces, is used to identify critical phase transition points.
URI: http://hdl.handle.net/11154/1703
ISSN: 0556-2813
Appears in Collections:Ciencias

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