Abstract

The saturation property of nuclear matter is investigated under bare vertex nuclear SchwingerDyson approximation in the 6-(J) model. Instabilities are removed by the parameterization of rJ-meson mass in addition to coupling constants. One meson loop corrections to the binding energy are reduced drastically due to the rJ·(J) mixing, while the mean field keeps its large contribution because of the small 6-meson·mass and the small coupling constant in the 6-nucleon interaction.

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