Nuclear dipole polarizability from mean-field modeling constrained by chiral effective field theory
Abstract
We construct a new Skyrme interaction Skm by fitting the equation of state and nucleon effective masses in asymmetric nuclear matter from chiral two- and three-body forces as well as the binding energies of finite nuclei. Employing this interaction to study the electric dipole polarizabilities of Ca, Ni, Sn, and Pb in the random-phase approximation, we find that the theoretical predictions are in good agreement with experimentally measured values without additional fine tuning of the Skyrme interaction, thus confirming the usefulness of the new Skyrme interaction in studying the properties of nuclei. We further use this interaction to study the neutron skin thicknesses of Ca and Pb, and they are found to be consistent with the experimental data.
Keywords
Cite
@article{arxiv.1703.00866,
title = {Nuclear dipole polarizability from mean-field modeling constrained by chiral effective field theory},
author = {Zhen Zhang and Yeunhwan Lim and Jeremy W. Holt and Che Ming Ko},
journal= {arXiv preprint arXiv:1703.00866},
year = {2018}
}
Comments
Significantly revised, 7 pages, 4 figures. Published version in PLB