The nuclear configuration interations method

Abstract

This contribution consists of several connected parts: a brief introduction to nuclear physics and nuclear theory; the evidence for magic numbers in nuclear properties, and their interpretation in terms of the single-particle nuclear shell model; the construction of many-body wave functions for configuration mixing calculations; model space truncations of the many-body basis; types of configuration interaction codes and the Lanczos method; types of effective Hamiltonians for specific model spaces; and an introduction to the NuShellX code for calculating, wavefunctions, energies and observables for a given model space and Hamiltonian.