dorsal/arxiv
View SchemaPhase transitions and critical points in the rare-earth region
| Authors | J. E. Garcia-Ramos, J. M Arias, J. Barea, A. Frank |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0304008 |
| URL | https://arxiv.org/abs/nucl-th/0304008 |
| DOI | 10.1103/PhysRevC.68.024307 |
| Journal | Phys.Rev. C68 (2003) 024307 |
Abstract
A systematic study of isotope chains in the rare--earth region is presented. For the chains (144-154)Nd, (146-160)Sm, (148-162)Gd, and (150-166)Dy, energy levels, E2 transition rates, and two--neutron separation energies are described by using the most general (up to two--body terms) 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.
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"abstract": "A systematic study of isotope chains in the rare--earth region is presented.\nFor the chains (144-154)Nd, (146-160)Sm, (148-162)Gd, and (150-166)Dy, energy\nlevels, E2 transition rates, and two--neutron separation energies are described\nby using the most general (up to two--body terms) IBM Hamiltonian. For each\nisotope chain a general fit is performed in such a way that all parameters but\none are kept fixed to describe the whole chain. In this region nuclei evolve\nfrom spherical to deformed shapes and a method based on catastrophe theory, in\ncombination with a coherent state analysis to generate the IBM energy surfaces,\nis used to identify critical phase transition points.",
"arxiv_id": "nucl-th/0304008",
"authors": [
"J. E. Garcia-Ramos",
"J. M Arias",
"J. Barea",
"A. Frank"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.68.024307",
"journal_ref": "Phys.Rev. C68 (2003) 024307",
"title": "Phase transitions and critical points in the rare-earth region",
"url": "https://arxiv.org/abs/nucl-th/0304008"
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