格点核子-核子势在核物质中的相对论效应

来源 :第十六届全国核物理大会 | 被引量 : 0次 | 上传用户:beichen35
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利用最新的格点核子-核子势研究了核物质中的相对论效应.通过此格点核子-核子势场,首先我们构建一个包括π介子,σ介子以及ω介子的单玻色子交换势.势场中的介子-核子耦合常数以及截断动量通过拟合格点核力得到的核子-核子散射相移确定.随后采用非常成功的第一性原理多体计算方法Brueckner-Hartree-Fock模型,计算了核物质的基本性质.发现对称核物质的状态方程以及饱和性质在非相对论框架和相对论框架中有很明显的区别.在格点核力中,该相对论效应对核物质的结合能提供吸引的贡献.这与采用传统的核力计算得到的结果是相反的.
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