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  • 1975-1979  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Ground state correlations and the nuclear charge distribution (1979)
    Springer
    The European physical journal 290 (1979), S. 85-91 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Combining a sum rule approach and the generator coordinate model we evaluate the influence of ground state correlations on the moments of the radial charge distribution. The isotopic and isotonic differences of the moments come out to be particularly sensitive to fluctuations of the ground state correlations due to changes in the low energy spectrum. A comparison with the experimental results for the isotopes of Ca, Fe, Ni and Zn shows a fair agreement and confirms the importance of the ground state correlations for isotopic and isotonic differences of radial moments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408483
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A model study of Hartree-Fock and Linear Response in coordinate space (1979)
    Springer
    The European physical journal 292 (1979), S. 375-383 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A fast procedure for spherical Hartree-Fock is obtained by coordinate space representation and a modification of gradient iteration. Along similar lines, the corresponding Linear Response equations are derived and solved, in order to achieve a fully consistent treatment. The Linear Response equations are applied to a change in particle numbers, i.e. to the description of isotopic differences. In a model study we look for their physical and numerical properties, i.e. linearity of the response, numerical stability and consistency requirements for the Hartree-Fock basis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01546436
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Non-adiabatic treatment of fission mass distribution (1975)
    Springer
    The European physical journal 272 (1975), S. 397-401 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The influence of dynamical corrections to fission mass yields has been studied within the frame work of the macroscopic-microscopic approach and solving the time-dependent Schrödinger equation for the asymmetry degree of freedom, treating the fragment separation classically. The results indicate that the actual motion lies in between the adiabatic and sudden approximations. In particular the dynamic effects tend to increase considerably the probability for symmetric fission as compared to the static case.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01440867
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A two-center-oscillator-basis as an alternative set for heavy ion processes (1977)
    Springer
    The European physical journal 280 (1977), S. 253-257 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The two-center-oscillator-basis, which is constructed from harmonic oscillator wave functions developing about two different centers, suffers from numerical problems at small center separations due to the overcompleteness of the set. In order to overcome these problems we admix higher oscillator wave functions before the orthogonalization, or antisymmetrization resp. This yields a numerically stable basis set at each center separation. The results obtained for the potential energy surface are comparable with the results of more elaborate models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01434350
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    Paper (German National Licenses)
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