Ground-state energies and charge radii of 4He, 16O, 40Ca, and 56Ni in the unitary-model-operator approach
Abstract
We study the nuclear ground-state properties by using the unitary-model-operator approach (UMOA). Recently, the particle-basis formalism has been introduced in the UMOA, enabling us to employ the charge-dependent nucleon-nucleon interaction. We evaluate the ground-state energies and charge radii of {}4He, {}^{16}O, {}^{40}Ca, and {}^{56}Ni with the charge-dependent Bonn potential. The ground-state energy is dominated by the contributions from the one- and two-body cluster terms, while, for the radius, the one-particle-one-hole excitations are more important than the two-particle-two-hole excitations. The calculated results reproduce the trend of experimental data of the saturation property for finite nuclei.
- Publication:
-
Progress of Theoretical and Experimental Physics
- Pub Date:
- April 2015
- DOI:
- 10.1093/ptep/ptv042
- arXiv:
- arXiv:1504.04965
- Bibcode:
- 2015PTEP.2015d1D01M
- Keywords:
-
- D10;
- Nuclear Theory
- E-Print:
- 8 pages, 1 figure, published in Prog. Theor. Exp. Phys