摘要
用手征对称破缺模型（σ-π，ω）研究了相对论核物质的性质。在此模型中，核子间的相互作用通过标量介子σ，赝标量介子π和矢量介子ω的交换而产生，与一般的非手征的（σ＋π＋ω）模型比较，它除了把σ与π当作手征场的4-分量外，还存在手征场的非线性自相互作用项，这是手征自发破缺模型的性能所要求的，通过此模型，在自治平均场近似下就可以得到比Walecka模型更好的核物质的特性。
The chiral-symmetry-breaking model is used to study proersies of relativistic nuclear matter. In such a model,nucleons interact by exchanging of scalar(σ),pseudoscalar (π) and veactor (ω) meson. Compared with the non-chiral (σ + π + ω) model.the model has non-linear self-interacting terms of chiral field besides considering σ,π the 4-components of chiral field, which is required by the property of the chiral-sponta-neous-breaking model. It is concluded that properties of nuclear matter obtained by this model in self-consistent mean field approximation is more reasonable than that by Walecka model.
出处
《河北师范大学学报（自然科学版）》
CAS
1997年第4期369-373,共5页
Journal of Hebei Normal University：Natural Science
