Simple approximation for the starting-energy-independent two-body effective interaction with applications to 6Li
Abstract
We apply the Lee-Suzuki iteration method to calculate the linked-folded diagram series for a new Nijmegen local NN potential. We obtain an exact starting-energy-independent effective two-body interaction for a multi-shell, no-core, harmonic-oscillator model space. It is found that the resulting effective-interaction matrix elements can be well approximated by the Brueckner G-matrix elements evaluated at starting energies selected in a simple way. These starting energies are closely related to the energies of the initial two-particle states in the ladder diagrams. The ``exact'' and approximate effective interactions are used to calculate the energy spectrum of 6Li in order to test the utility of the approximate form.
Keywords
Cite
@article{arxiv.nucl-th/9311027,
title = {Simple approximation for the starting-energy-independent two-body effective interaction with applications to 6Li},
author = {D. C. Zheng and B. R. Barrett and J. P. Vary and R. J. McCarthy},
journal= {arXiv preprint arXiv:nucl-th/9311027},
year = {2009}
}
Comments
15 text pages and 2 PostScript figures (available upon request). University of Arizona preprint, Number unassigned