Spin dependent ab initio nonlocal No-Core Shell-Model One-Body Densities
Abstract
Constructing microscopic effective interactions (`optical potentials') for nucleon-nucleus (NA) elastic scattering requires in first order off-shell nucleon-nucleon (NN) scattering amplitudes between the projectile and the struck target nucleon and nonlocal one-body density matrices. While the NN amplitudes and the {\it ab intio} no-core shell-model (NCSM) calculations always contain the full spin structure of the NN problem, one-body density matrices used in traditional microscopic folding potential neglect spin contributions inherent in the one-body density matrix. Here we derive and show the expectation values of the spin-orbit contribution of the struck nucleon with respect to the rest of the nucleus for He, He, C, and O and compare them with the scalar one-body density matrix.
Cite
@article{arxiv.1910.00683,
title = {Spin dependent ab initio nonlocal No-Core Shell-Model One-Body Densities},
author = {G. Popa and M. Burrows and Ch. Elster and K. D. Launey and P. Maris and S. P. Weppner},
journal= {arXiv preprint arXiv:1910.00683},
year = {2019}
}
Comments
Proceedings for IWNT38, Rila, Bulgaria, June 2019, 10 pages, 5 figures