Relativistic nuclear energy density functionals: Adjusting parameters to binding energies

Nikšić, Tamara and Vretenar, Dario and Ring, Peter (2008) Relativistic nuclear energy density functionals: Adjusting parameters to binding energies. Physical Review C, 78 (3). pp. 34318-19. ISSN 0556-2813

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Abstract

We study a particular class of relativistic nuclear energy density functionals in which only nucleon degrees of freedom are explicitly used in the construction of effective interaction terms. Short-distance (high-momentum) correlations, as well as intermediate- and long-range dynamics, are encoded in the medium (nucleon-density) dependence of the strength functionals of an effective interaction Lagrangian. Guided by the density dependence of microscopic nucleon self-energies in nuclear matter, a phenomenological ansatz for the density-dependent coupling functionals is accurately determined in self-consistent mean-field calculations of binding energies of a large set of axially deformed nuclei. The relationship between the nuclear matter volume, surface, and symmetry energies and the corresponding predictions for nuclear masses is analyzed in detail. The resulting best-fit parametrization of the nuclear energy density functional is further tested in calculations of properties of spherical and deformed medium-heavy and heavy nuclei, including binding energies, charge radii, deformation parameters, neutron skin thickness, and excitation energies of giant multipole resonances.

Item Type: Article
Date: September 2008
Subjects: NATURAL SCIENCES > Physics > Nuclear Physics
Additional Information: Copyright (2008) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-1191005-1010
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 27 May 2014 18:17
Last Modified: 27 May 2014 18:17
URI: http://digre.pmf.unizg.hr/id/eprint/1818

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