Effective Interaction Theory and Unitary-Model-Operator Approach to Nuclear Saturation Problem

Abstract

The structure of the effective interaction is reviewed on the similarity-transformationtheory. The Hermitian effective interaction is constructed, and itsformal relation with the usual non-Hermitian form is discussed. Asan application of the Hermitian theory, the unitary-model-operatorapproach (UMOA) is formulated. The two-body effective interactionis introduced and shown to be used for a basic ingredient in describingnuclear properties. The relationship between the G-matrix theoryand the present approach is discussed. The theory is applied to thecalculation of the ground-state properties of 16O with various nucleon-nucleonpotentials.