Effective nucleon mass in relativistic mean field theory

Chung, K. C.; Wang, C. S.; Santiago, A. J.; Zhang, J. W.

Effective nucleon mass in relativistic mean field theory

Authors

Description

In the $σ$-$ω$-$ρ$ model of the relativistic mean field theory with nonlinear $σ$-meson self-interaction, the effective nucleon mass $M^*$ is discussed with relation to the symmetry incompressibility $K_s$ of nuclear matter, based on the model parameters fitted to nuclear matter properties. It is shown that $M^*$ is larger than $0.73M$, if $K_s$ is assumed to be negative and the nuclear matter incompressibility $K_0$ is kept less than $300 MeV$. Furthermore, the field system is shown to be stable, as the $σ$-meson self-interaction energy is lower bounded in this parameter region.
5 pages, 8 figures