Effects of ground-state correlations on magnetic dipole excitations in $^{40}$Ca
Nuclear Theory
2020-11-25 v2
Abstract
The effects of ground-state correlations on the magnetic dipole excitations in Ca are studied using an extended random phase approximation (ERPA) derived from the time-dependent density-matrix theory. Comparison is made with other extended RPA approaches, the renormalized RPA, the self-consistent RPA and the extended second RPA which also include the effects of ground-state correlations. It is pointed out that direct excitations from two particle - two hole space which are properly treated in ERPA cause strong magnetic dipole transitions in Ca.
Keywords
Cite
@article{arxiv.2009.02014,
title = {Effects of ground-state correlations on magnetic dipole excitations in $^{40}$Ca},
author = {Mitsuru Tohyama},
journal= {arXiv preprint arXiv:2009.02014},
year = {2020}
}
Comments
5 pages, 4 figures. arXiv admin note: text overlap with arXiv:1712.02006