Shape evolution in yttrium and niobium neutron-rich isotopes
| Autor: | Pedro Sarriguren, L. M. Robledo, R. R. Rodríguez-Guzmán |
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| Přispěvatelé: | UAM. Departamento de Física Teórica |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle properties Isotope Nuclear Theory Niobium FOS: Physical sciences chemistry.chemical_element Física Yttrium Calculation methods [PACS] Nuclear Density Functional Theory and extensions (includes Hartree-Fock and random-phase approximations) Nuclear Theory (nucl-th) Nuclear physics chemistry Energy density Neutron Atomic number Nuclear Experiment [PACS] Single-particle levels and strength functions [PACS] Properties of specific nuclei listed by mass ranges 90 ≤ A ≤ 149 |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Biblos-e Archivo. Repositorio Institucional de la UAM |
| DOI: | 10.1103/physrevc.83.044307 |
| Popis: | 11 págs. ; 14 figs. The isotopic evolution of the ground-state nuclear shapes and the systematics of one-quasiproton configurations are studied in neutron-rich odd-A yttrium and niobium isotopes. We use a self-consistent Hartree-Fock-Bogoliubov formalism based on the Gogny energy density functional with two parametrizations, D1S and D1M. The equal-filling approximation is used to describe odd-A nuclei preserving both axial and time-reversal symmetries. Shape-transition signatures are identified in the N = 60 isotopes in both the charge radii and spin parities of the ground states. These signatures are a common characteristic for nuclei in the whole mass region. The nuclear deformation and shape coexistence inherent to this mass region are shown to play a relevant role in the understanding of the spectroscopic features of the ground and low-lying one-quasiproton states. Finally, a global picture of the neutron-rich A ∼ 100 mass region from krypton up to molybdenum isotopes is illustrated with the systematics of the nuclear charge radii isotopic shifts. MICINN (Spain) under Grants No. FIS2008-01301, No. FPA2009-08958, and No. FIS2009-07277 and Consolider-Ingenio 2010 Programs CPAN CSD2007-00042 and MULTIDARK CSD2009-00064. |
| Databáze: | OpenAIRE |
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