On the energy-shell contributions of the three-particle~-~ three-hole excitations
Nuclear Theory
2016-08-14 v1
Abstract
The response functions for the extended second and third random phase approximation are compared. A second order perturbation calculation shows that the first-order amplitude for the direct excitation from the ground state cancels with those that are engendered by the - coupling. As a consequence nonvanishing effects to the response involve off energy shell renormalization only. On shell processes are absent.
Keywords
Cite
@article{arxiv.nucl-th/9401013,
title = {On the energy-shell contributions of the three-particle~-~ three-hole excitations},
author = {A. Mariano and F. Krmpotić and A. F. R. de Toledo Piza},
journal= {arXiv preprint arXiv:nucl-th/9401013},
year = {2016}
}
Comments
12 pages text (LaTex) and 1 figure included, to be published in Phys. Rev. C