Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 50: Nuclear Astrophysics IV
HK 50.6: Vortrag
Donnerstag, 17. März 2016, 15:45–16:00, S1/01 A04
Relativistic mean-field model with energy-dependent self-energies for finite nuclei — •Sofija Antić1,2 and Stefan Typel1 — 1GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt, Germany — 2Technische Universitt Darmstadt, Germany
Following previous applications to infinite nuclear matter and neutron stars, a relativistic mean-field (RMF) model that includes higher-order derivative (NLD) couplings and density dependent (DD) couplings of nucleons to the meson fields is extended to describe finite nuclei. For that purpose, it is necessary to determine a new parametrization of the DD-NLD RMF model. Experimental binding energies, charge and diffraction radii, surface thicknesses and other observables of a set of nuclei (16O, 24O, 40Ca, . . . 208Pb) are used as constraints. The results are studied for different energy dependencies of the regulator functions in order to find the most suitable one that is consistent with the optical potential constraint for nucleons in nuclear matter.
This work is supported by the Helmholtz Association (HGF) through the Nuclear Astrophysics Virtual Institute (NAVI, VH-VI-417).