Quantum Monte Carlo calculation for the neutron-rich Ca isotopes

Quantum Monte Carlo Calculation for the neutron-rich Ca isotopes

We computed ground-state energies of calcium isotopes from Ca to Ca by means of the Auxiliary Field Diffusion Monte Carlo (AFDMC) method. Calculations were performed by replacing the Ca 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 par...

Monte Carlo Calculation for the neutron-rich Ca isotopes

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 computed by projecting the ground-state from a wave function built with the single...

PRODUCTION OF NEUTRON-RICH Ca ISOTOPES IN TRANSFER-TYPE REACTIONS

Monte Carlo calculation of the effective neutron generation time

The Monte Carlo calculation of the effective (i.e. adjoint weighted) neutron generation time Keff, especially for continuous energy simulations, is not straightforward nor standard in Monte Carlo codes. The use of the non-adjoint weighted neutron generation time K (standard in most Monte Carlo codes) as an approximation of the effective one can lead to a serious bias. We show here that the diff...

Shell-model plus Hartree-Fock calculations for the neutron-rich Ca isotopes

A new method is developed to combine the large-basis shell-model and Hartree-Fock methods. The HartreeFock method is used to obtain the absolute uncorrelated binding energies, a starting set of single-particle energies, and the single-particle radial wave functions. The shell model Hamiltonian is modified to remove the monopole terms and these are replaced by Hartree-Fock single-particle energi...