Elsevier

Nuclear Physics A

Volume 420, Issue 2, 28 May 1984, Pages 297-319
Nuclear Physics A

Static nuclear properties and the parametrisation of Skyrme forces

https://doi.org/10.1016/0375-9474(84)90444-5Get rights and content

Abstract

We present a systematic study of the dependence of static nuclear properties on the parameters of the effective interaction used in the Hartree-Fock (HF) and extended-Thomas-Fermi (ETF) models. For this purpose, a set of trial Skyrme forces, which are constrained by a fit to nuclear radii and binding energies, is developed. This leaves six free parameters: the spin-orbit strength, the nuclear-matter compression modulus, the isoscalar and isovector contributions to the effective masses, the value of the exchange parameter x3 (governing the surface-symmetry properties) and the coefficient of the “gradient-symmetry” term |▽ρn − ▽ρp|2 in the energy-density functional. The influence of these parameters on various properties is studied: droplet-model parameters, quality of the fit to experimental masses, extrapolation of masses, fit to charge radii, charge distributions and neutron-skin thicknesses, semiclassical fission barriers, and Landau parameters. Indications are given of the directions which could be followed in order to improve the fit to experimental data. Several correlations remaining in the results suggest that a larger number of degrees of freedom obtained by additional terms could be useful.

References (52)

  • X. Campi et al.

    Nucl. Phys.

    (1972)
  • M. Beiner et al.

    Nucl. Phys.

    (1975)
  • H.S. Köhler

    Nucl. Phys.

    (1976)
  • H. Krivine et al.

    Nucl. Phys.

    (1980)
  • J. Bartel et al.

    Nucl. Phys.

    (1982)
  • Nguyen Van Giai et al.

    Phys. Lett.

    (1981)
  • S. Krewald et al.

    Nucl. Phys.

    (1977)
  • C. Guet et al.

    Phys. Lett.

    (1980)
  • F. Tondeur et al.

    Nucl. Phys.

    (1983)
  • J.M. Pearson

    Nucl. Phys.

    (1982)
  • M. Waroquier et al.

    Nucl. Phys.

    (1983)
  • F. Tondeur

    Nucl. Phys.

    (1978)
  • F. Tondeur

    Nucl. Phys.

    (1979)
  • J. Côté et al.

    Nucl. Phys.

    (1978)
  • M. Farine et al.

    Nucl. Phys.

    (1980)
  • M. Brack et al.

    Phys. Lett.

    (1976)
  • B. Grammaticos et al.

    Ann. of Phys.

    (1979)
    B. Grammaticos et al.

    Ann. of Phys.

    (1980)
  • J.P. Blaizot et al.

    Nucl. Phys.

    (1976)
  • J.P. Blaizot

    Phys. Reports

    (1980)
  • M. Farine et al.

    Phys. Rev.

    (1981)
  • F. Tondeur
  • G.D. Alkhazov et al.

    Nucl. Phys.

    (1982)
  • G.W. Hoffmann et al.

    Phys. Rev.

    (1980)
  • I. Brissaud et al.

    Phys. Lett.

    (1979)
  • M. Rayet et al.

    Astron. Astrophys.

    (1982)
  • M. Brack et al.

    Rev. Mod. Phys.

    (1972)
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