Article
Phase transitions and critical points in the rare-earth region
Author/s | García Ramos, José Enrique
Arias Carrasco, José Miguel Barea, J. Frank, A. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear2003 |
Publication Date | 2003-08-01 |
Deposit Date | 2017-07-12 |
Published in |
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Abstract | A systematic study of isotope chains in the rare-earth region is presented. For chains 60 144 2 154Nd, 62 146 2 160Sm, 64 148 2 162Gd, and 66 150 2 166 Dy, energy levels, E2 transition rates, and two-neutron separation ... A systematic study of isotope chains in the rare-earth region is presented. For chains 60 144 2 154Nd, 62 146 2 160Sm, 64 148 2 162Gd, and 66 150 2 166 Dy, 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. |
Funding agencies | Ministerio de Ciencia y Tecnología (MCYT). España |
Project ID. | FPA2000-1592-C03-02
BFM2002-03315 |
Citation | García Ramos, J.E., Arias Carrasco, J.M., Barea, J. y Frank, A. (2003). Phase transitions and critical points in the rare-earth region. Physical Review C - Nuclear Physics, 68 (2), 024307-1-024307-11. |
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