2006/05/31 by S. Gandolfi, Stefano Gandolfi, Francesco Pederiva +2 · 1 citation
Physics and Astronomy · #Advanced Chemical Physics Studies #Astronomical and nuclear sciences #Nuclear physics research studies #nucl-th
paper · pdf · doi:10.1140/epja/i2008-10536-3
published as Eur. Phys. J. A 35, 207 (2008) · Final version, to be published in EPJ A
openalex publication_date 2008/02/01 · arxiv created 2008/02/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29
We computed ground-state energies of calcium isotopes from 42Ca to 48Ca by means of the Auxiliary Field Diffusion Monte Carlo (AFDMC) method. Calculations were performed by replacing the 40Ca core with a mean-field self consistent potential computed using Skyrme interaction. The energy of the external neutrons is calculated by projecting the ground-state from a wave function built with the single particle orbitals computed in the self consistent external potential. The shells considered were the 1F7/2 and the 1F5/2. The Hamiltonian employed is semi-realistic and includes tensor, spin--orbit and three--body forces. While absolute binding energies are too deep if compared with experimental data, the differences between the energies for nearly all isotopes are in very good agreement with the experimental data.