论文部分内容阅读
介绍了两个近期基于协变手征微扰理论构建领头阶核子-核子和超子-核子相互作用的工作。理论中未知的低能常数通过拟合核子-核子和超子-核子散射实验数据确定。分析发现,在对散射数据的描述上,领头阶相对论手征力可以媲美次领头阶非相对论手征核力。研究表明,构建相对论手征重子-重子相互作用技术上是可行的。得到的相互作用不仅可以为相对论核结构及反应研究提供重要的理论输入,而且可以进一步加深对低能强相互作用的认识。
Two recent work on the construction of the first order nuclear - nuclear and hyperon - nucleus interactions based on the theory of covariant perturbation is presented. The unknown low energy constant in the theory is determined by fitting the experimental data of nuclear-nuclear and hyperon-nuclear scattering. The analysis found that the leading relativistic chiral force can be compared with the subordinate leading non-relativistic chiral nucleus in the description of the scattering data. Research shows that it is technically feasible to construct the relativistic chiral baryon-baryon interaction. The obtained interactions not only provide important theoretical input for relativistic nuclear structure and reaction studies, but also deepen the understanding of low-energy interactions.