Zero-sound modes for the nuclear equation of state at supra-normal densities
Nuclear Theory
2023-10-26 v1
Abstract
The meaningful correlations between the zero-sound modes and the stiffness of the nuclear equation of state (EOS) are uncovered in nuclear matter with the relativistic mean-field theory. It is demonstrated that the high-density zero-sound modes merely exist in models with the stiff EOS. While the stiff EOS can be softened by including {\omega}-meson self-interactions (the {\omega}4 term), the weakened coupling of the {\omega}-meson self-interactions reignites the zero sound at high density. These results suggest that the high-density zero-sound modes can be used to probe the stiffness of the EOS at supra-normal densities. The implications and effects of zero sounds are also discussed in heavy ion collisions and neutron stars.
Keywords
Cite
@article{arxiv.2310.16759,
title = {Zero-sound modes for the nuclear equation of state at supra-normal densities},
author = {Jing Ye and J. Margueron and Niu Li and W. Z. Jiang},
journal= {arXiv preprint arXiv:2310.16759},
year = {2023}
}