Energy Dependent Isospin Asymmetry in Mean-Field Dynamics
Nuclear Theory
2015-05-30 v2
Abstract
The Lagrangian density of relativistic mean-field (RMF) theory with non-linear derivative (NLD) interactions is applied to isospin asymmetric nuclear matter. We study the symmetry energy and the density and energy dependences of nucleon selfenergies. At high baryon densities a soft symmetry energy is obtained. The energy dependence of the isovector selfenergy suppresses the Lane-type optical potential with increasing energy and predicts a -meson induced mass splitting between protons and neutrons in isospin asymmetric matter.
Keywords
Cite
@article{arxiv.1109.4837,
title = {Energy Dependent Isospin Asymmetry in Mean-Field Dynamics},
author = {T. Gaitanos and M. Kaskulov},
journal= {arXiv preprint arXiv:1109.4837},
year = {2015}
}
Comments
21 pages, 8 figures, Nuclear Physics A in press