Masses, Deformations and Charge Radii--Nuclear Ground-State Properties in the Relativistic Mean Field Model

Details Masses, Deformations and Charge Radii--Nuclear Ground-State Properties in the Relativistic Mean Field Model Masses, Deformations and Charge Radii--Nuclear Ground-State Properties in the Relativistic Mean Field Model

2005-03-31

arxiv.org/abs/nucl-th/0503086v1

Prog.Theor.Phys. 113 (2005) 785-800

Physics

Nuclear Physics

Nuclear Theory

16 pages, 5 figures, to appear in Progress of Theoretical Physics

Scientific paper

10.1143/PTP.113.785

We perform a systematic study of the ground-state properties of all the nuclei from the proton drip line to the neutron drip line throughout the periodic table employing the relativistic mean field model. The TMA parameter set is used for the mean-field Lagrangian density, and a state-dependent BCS method is adopted to describe the pairing correlation. The ground-state properties of a total of 6969 nuclei with $Z,N\ge 8$ and $Z\le 100$ from the proton drip line to the neutron drip line, including the binding energies, the separation energies, the deformations, and the rms charge radii, are calculated and compared with existing experimental data and those of the FRDM and HFB-2 mass formulae. This study provides the first complete picture of the current status of the descriptions of nuclear ground-state properties in the relativistic mean field model. The deviations from existing experimental data indicate either that new degrees of freedom are needed, such as triaxial deformations, or that serious effort is needed to improve the current formulation of the relativistic mean field model.

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