Platinum nuclei: Concealed configuration mixing and shape coexistence

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

DOI:https://doi.org/10.1103/PHYSREVC.84.014331· OSTI ID:21596577

Garcia-Ramos, J E ^[1]; Hellemans, V ^[2]; Heyde, K ^[3]

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1. Departamento de Fisica Aplicada, Universidad de Huelva, E-21071 Huelva (Spain)
2. Physique Nucleaire Theorique et Physique Mathematique, Universite Libre de Bruxelles, CP229, B-1050 Brussels (Belgium)
3. Department of Physics and Astronomy, Proeftuinstraat, 86 B-9000 Ghent (Belgium)

The role of configuration mixing in the Pt region is investigated. For this chain of isotopes, the nature of the ground state changes smoothly, being spherical around mass A{approx}174 and A{approx}192 and deformed around the midshell N=104 region. This has a dramatic effect on the systematics of the energy spectra as compared to the systematics in the Pb and Hg nuclei. Interacting boson model with configuration mixing calculations are presented for gyromagnetic factors, {alpha}-decay hindrance factors, and isotope shifts. The necessity of incorporating intruder configurations to obtain an accurate description of the latter properties becomes evident.

• OSTI ID: 21596577
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 84, Issue 1; Other Information: DOI: 10.1103/PhysRevC.84.014331; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
CONFIGURATION MIXING
ENERGY SPECTRA
GROUND STATES
INTERACTING BOSON MODEL
ISOTOPES
MASS
NUCLEI
PLATINUM
SPECTRAL SHIFT
SPHERICAL CONFIGURATION
CONFIGURATION
DECAY
ELEMENTS
ENERGY LEVELS
INTERACTIONS
MATHEMATICAL MODELS
METALS
NUCLEAR DECAY
NUCLEAR MODELS
PLATINUM METALS
SHELL MODELS
SPECTRA
TRANSITION ELEMENTS