Dynamics of nuclear single-particle structure in covariant theory of particle-vibration coupling: From light to superheavy nuclei

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

DOI:https://doi.org/10.1103/PHYSREVC.84.014305· OSTI ID:21596551

Litvinova, E V; Afanasjev, A V ^[1]

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1. GSI Helmholtzzentrum fuer Schwerionenforschung, D-64291 Darmstadt, Germany and Institut fuer Theoretische Physik, Goethe-Universitaet, D-60438 Frankfurt am Main (Germany)

The impact of particle-vibration coupling and polarization effects due to deformation and time-odd mean fields on single-particle spectra is studied systematically in doubly magic nuclei from low-mass {sup 56}Ni up to superheavy ones. Particle-vibration coupling is treated fully self-consistently within the framework of the relativistic particle-vibration coupling model. Polarization effects due to deformation and time-odd mean field induced by odd particle are computed within covariant density functional theory. It has been found that among these contributions the coupling to vibrations makes a major impact on the single-particle structure. The impact of particle-vibration coupling and polarization effects on calculated single-particle spectra, the size of the shell gaps, the spin-orbit splittings and the energy splittings in pseudospin doublets is discussed in detail; these physical observables are compared with experiment. Particle-vibration coupling has to be taken into account when model calculations are compared with experiment since this coupling is responsible for observed fragmentation of experimental levels; experimental spectroscopic factors are reasonably well described in model calculations.

• OSTI ID: 21596551
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 84, Issue 1; Other Information: DOI: 10.1103/PhysRevC.84.014305; (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
COUPLING
DEFORMATION
DENSITY FUNCTIONAL METHOD
HEAVY NUCLEI
MAGIC NUCLEI
MASS
MEAN-FIELD THEORY
NICKEL 56
PARTICLE STRUCTURE
POLARIZATION
RELATIVISTIC RANGE
SPECTRA
SPECTROSCOPIC FACTORS
TRANSACTINIDE ELEMENTS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALCULATION METHODS
DAYS LIVING RADIOISOTOPES
DIMENSIONLESS NUMBERS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
ENERGY RANGE
EVEN-EVEN NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
NICKEL ISOTOPES
NUCLEI
RADIOISOTOPES
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
VARIATIONAL METHODS