Shape evolution in yttrium and niobium neutron-rich isotopes

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.044307· OSTI ID:21499558

Rodriguez-Guzman, R; Sarriguren, P ^[1]; Robledo, L M ^[2]

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1. Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Cientificas, Serrano 123, E-28006 Madrid (Spain)
2. Departamento de Fisica Teorica, Modulo 15, Universidad Autonoma de Madrid, E-28049 Madrid (Spain)

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{approx}100 mass region from krypton up to molybdenum isotopes is illustrated with the systematics of the nuclear charge radii isotopic shifts.

• OSTI ID: 21499558
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevC.83.044307; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
APPROXIMATIONS
ATOMIC NUMBER
CONFIGURATION
ENERGY DENSITY
GROUND STATES
HARTREE-FOCK-BOGOLYUBOV THEORY
KRYPTON
MASS
MOLYBDENUM ISOTOPES
NEUTRON-RICH ISOTOPES
NEUTRONS
NIOBIUM ISOTOPES
NUCLEAR DEFORMATION
NUCLEI
PARITY
SPECTRAL SHIFT
SPIN
SYMMETRY
YTTRIUM ISOTOPES
ANGULAR MOMENTUM
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCULATION METHODS
DEFORMATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
FERMIONS
FLUIDS
GASES
HADRONS
ISOTOPES
NONMETALS
NUCLEONS
PARTICLE PROPERTIES
RADIOISOTOPES
RARE GASES