Distributed algorithm for nuclear structure investigations

Abstract

Since the form of the nuclear force is not explicitly known, various models have been proposed to account for the nucleon-nucleon scattering data and gross properties of nuclei, such as quadrupole moments, binding energy, etc. Some of the better known models are the liquid-drop [7], shell [4], unified [5] and grouptheoretical [6] approximations. This paper presents a hypercube based algorithm for the derivation of nuclear structure energy levels and binding energies for a wide range o isotopes. The algorithm is based on previous work f l, 21 which studied isotopes in the f-p-g shell shown in Figure 1. Extensions to higher order shells are obtained using a distributed decomposition of the coupled state and perturbation calculations. The results of scaling experiments for the NCUBE/lO system at the University of South Carolina are also included.