Collective Excitations and Ground State Correlations

Abstract

A generalized RPA formalism is presented which treats pp and ph correlations on an equal footing. The effect of these correlations on the single-particle Green function is discussed and it is demonstrated that a self-consistent treatment of the single-particle Green function is required to obtain stable solutions. A simple approximation scheme is presented which incorporates for this self-consistency requirement and conserves the number of particles. Results of numerical calculations are given for ${}^{16}$O using a G-matrix interaction derived from a realistic One-Boson-Exchange potential.

16 Pages + 2 Figures (included at the end as uuencoded ps-files), TU-180894

References in corpus (2)

• NN Correlations and Relativistic Hartree Fock in Finite Nuclei
• Correlations in Nuclei: Self-Consistent Treatment and the BAGEL Approach

Cited by in corpus (4)

• Two-Body Correlations in Nuclear Systems
• A Self-Consistent Solution to the Nuclear Many-Body Problem at Finite Temperature
• Correlations and spectral functions in asymmetric nuclear matter
• Nuclear Self-energy and Realistic Interactions