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  • 21.65.+f  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 331 (1988), S. 367-368 
    ISSN: 1434-601X
    Keywords: 21.10.Dr ; 21.60.Jz ; 21.65.+f
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The extrapolation properties of the relativistic mean-field model are investigated in nuclear matter. The results of a recent relativistic Bethe-Brueckner-Gatdstone calculation are taken as ‘data”. Fits in a window of normal nuclear densities are extrapolated to large densities and compared with the ‘data’. We find large discrepancies which hint at an insufficiency of the model in its present parametrisation.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Keywords: 21.30.+y ; 21.60.Jz ; 21.65.+f
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Most general forms of the nonlinear selfcoupling of the scalar field in the relativistic mean-field model are discussed, the frequently used form where the scalar mass is field-dependent, and an alternative where the scalar coupling constant becomes field-dependent. Both models are shown to be fully equivalent in homogenous systems. They are practically equivalent in finite nuclei. Parametrizations in the nonlinear scalar coupling model which are constructed to avoid the nucleon-antinucleon instability at large densities fail to give a good description of common ground-state properties of finite nculei.
    Type of Medium: Electronic Resource
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