Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2002-09-24
Phys.Rev. C68 (2003) 045209
Physics
Nuclear Physics
Nuclear Theory
5 pages, 6 figures in Revtex. Final version to be published
Scientific paper
10.1103/PhysRevC.68.045209
The influence of the in-medium mesons on the effective nucleon mass and in turn on the equation of state of hot/dense nuclear matter is discussed in the Walecka model. Due to the self-consistent treatment of couplings between nucleons and $\sigma $ and $\omega$ mesons, the temperature and density dependence of the effective hadron masses approaches more towards the Brown-Rho scaling law, and the compression modulus $K$ is reduced from $550 MeV$ in mean field theory to an accepted value $318.2 MeV$.
Chen Ji-sheng
Li Jia-rong
Zhuang Peng-fei
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