Effect of three-body forces on response functions in infinite neutron matter
Nuclear Theory
2015-06-23 v1
Abstract
We study the impact of three-body forces on the response functions of cold neutron matter. These response functions are determined in the random phase approximation (RPA) from a residual interaction expressed in terms of Landau parameters. Special attention is paid to the non-central part, including all terms allowed by the relevant symmetries. Using Landau parameters derived from realistic nuclear two- and three-body forces grounded in chiral effective field theory, we find that the three-body term has a strong impact on the excited states of the system and in the static and long-wavelength limit of the response functions for which a new exact formula is established.
Keywords
Cite
@article{arxiv.1411.3117,
title = {Effect of three-body forces on response functions in infinite neutron matter},
author = {D. Davesne and J. W. Holt and A. Pastore and J. Navarro},
journal= {arXiv preprint arXiv:1411.3117},
year = {2015}
}