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The European Physical Journal A

, Volume 35, Issue 2, pp 207–211 | Cite as

Quantum Monte Carlo calculation for the neutron-rich Ca isotopes

  • S. GandolfiEmail author
  • F. Pederiva
  • S. a Beccara
Regular Article - Theoretical Physics

Abstract.

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 the 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 1F 7/2 and the 1F 5/2 . 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.

PACS.

21.10.-k Properties of nuclei; nuclear energy levels 21.10.Dr Binding energies and masses 24.10.Cn Many-body theory 21.30.Fe Forces in hadronic systems and effective interactions 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2008

Authors and Affiliations

  1. 1.S.I.S.S.A.TriesteItaly
  2. 2.INFNGruppo Collegato di TrentoPovo, TrentoItaly
  3. 3.Dipartimento di Fisica dell'Universitá di TrentoPovo, TrentoItaly
  4. 4.INFM DEMOCRITOS National Simulation CenterTriesteItaly

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